# US 2017/0283379 A1 · Nitrogen-containing polycyclic compound and organic light emitting device using same (as amended)

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- Number: US 2017/0283379 A1
- Document ID: US20170283379A1
- Status: Published application
- Kind: A1
- Application number: 15/508,438
- Filed: 2015-10-07
- Published: 2017-10-05
- Earliest claimed: 2014-10-14
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd
- Inventors: Hyok Joon KWON; Minjun KIM; Wanpyo HONG; Kongkyeom KIM; Seong So KIM
- Web page: https://patentgrep.com/patent/US20170283379A1

## CPC

- C07D 209/56: Ring systems containing three or more rings
- C07D 209/80: [b, c]- or [b, d]-condensed
- C07D 403/04: directly linked by a ring-member-to-ring-member bond
- C07D 403/10: linked by a carbon chain containing aromatic rings
- C07D 403/14: containing three or more hetero rings
- C07D 405/14: containing three or more hetero rings
- C07D 409/14: containing three or more hetero rings
- C09K 11/06: containing organic luminescent materials
- H10K 50/15: Hole transporting layers
- H10K 50/16: Electron transporting layers
- H10K 50/171: {Electron injection layers}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- C09K 2211/1011: Condensed systems
- C09K 2211/1029: containing one nitrogen atom as the heteroatom
- H10H 20/032: {of electrodes}
- H10K 2102/301: {Details of OLEDs}
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

The present specification provides a multicyclic compound including nitrogen and an organic light emitting device using the same.

## Claims

### Claim 1

A multicyclic compound including nitrogen represented by the following Formula 1:
in Formula 1,
at least one of R4 and R5 is -(L2)q-Ar2,
L1 and L2 are the same as or different from each other, and are each independently a direct bond; a substituted or unsubstituted alkylene; a substituted or unsubstituted arylene; or a substituted or unsubstituted heteroarylene,
Ar1 and Ar2 are the same as or different from each other, and are each independently a nitrile group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group,
R1 to R6 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
a is an integer of 0 to 4,
b is an integer of 0 to 2,
p and q are the same as or different from each other, and are each independently an integer of 0 to 5, and
when a, b, p, and q are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 2 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 2 or 3:
in Formulae 2 and 3,
the definitions of Ar1, Ar2, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1.

### Claim 3 (depends on 1)

The compound of claim 1, wherein Ar2 is any one selected from the following structural formulae:
in the structural formulae,
S1 to S9 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or optionally combine with an adjacent group to form a ring,
s1, s2, and s3 are the same as or different from each other, and are each independently an integer of 0 to 4,
s4, s5, s6, s7, and s9 are the same as or different from each other, and are each independently an integer of 0 to 3,
s8 is an integer of 0 to 2, and
when s1 is 2 or more, S1's are the same as or different from each other,
when s2 is 2 or more, S2's are the same as or different from each other,
when s3 is 2 or more, S3's are the same as or different from each other,
when s4 is 2 or more, S4's are the same as or different from each other,
when s5 is 2 or more, S5's are the same as or different from each other,
when s6 is 2 or more, S6's are the same as or different from each other,
when s7 is 2 or more, S7's are the same as or different from each other,
when s8 is 2, S8's are the same as or different from each other, and
when s9 is 2 or more, S9's are the same as or different from each other.

### Claim 4 (depends on 1)

The compound of claim 1, wherein Ar2 is any one selected from the following structural formulae:
in the structural formulae,
A1 to A89 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or optionally combine with an adjacent group to form a ring,
a1, a4, a5, a6, a8, a17, a18, a19, a20, a21, a23, a26, a28, a46, a50, a58, a60, and a71 are the same as or different from each other, and are each independently an integer of 0 to 4,
a2, a3, a7, a11, a12, a14, a15, a22, a24, a31, a33, a34, a37, a38, a40, a42, a44, a47, a48, a49, a62, a73, a76, a85, a86, and a88 are the same as or different from each other, and are each independently an integer of 0 to 3,
a9, a10, a25, a30, a32, a35, a36, a39, a41, a43, a45, a51, a53, a54, a56, a59, a63, a68, a70, a72, a74, a75, a84, a87, and a89 are the same as or different from each other, and are each independently an integer of 0 to 2,
a52 is an integer of 0 to 1, and
when a1 to a15, a17 to a26, a28, a30 to a51, a53, a54, a56, a58 to a60, a62, a63, a68, a70 to a72, and a84 to a89 are 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 5 (depends on 1)

The compound of claim 1, wherein Ar2 is any one selected from the following structural formulae:
in the structural formulae,
B1 to B18 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or optionally combine with an adjacent group to form a ring,
b1, b4, b5, b7, b9, and b11 are the same as or different from each other, and are each independently an integer of 0 to 3,
b2, b6, b14, b16, and b18 are the same as or different from each other, and are each independently an integer of 0 to 4,
b3 is an integer of 0 to 2,
b8, b10, and b12 are the same as or different from each other, and are each independently an integer of 0 to 6,
b13, b15, and b17 are the same as or different from each other, and are each independently an integer of 0 to 5, and
when b1 to b18 are 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 6 (depends on 1)

The compound of claim 1, wherein Ar2 is any one selected from the following structural formulae:
in the structural formulae,
G1 to G6 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or optionally combine with an adjacent group to form a ring,
g1, g4, and g5 are the same as or different from each other, and each independently an integer of 0 to 3,
g2 and g6 are the same as or different from each other, and are each independently an integer of 0 to 4,
g3 is an integer of 0 to 2, and
when g1 to g6 are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 7 (depends on 1)

The compound of claim 1, wherein Ar2 is any one selected from the following structural formulae:
in the structural formulae,
E1 to E6 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or optionally combine with an adjacent group to form a ring,
e1, e4, and e5 are the same as or different from each other, and are each independently an integer of 0 to 3,
e2 and e6 are the same as or different from each other, and are each independently an integer of 0 to 4,
e3 is an integer of 0 to 2, and
when e1 to e6 are 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 8 (depends on 1)

The compound of claim 1, wherein Ar2 is a phenyl group; a biphenyl group; a naphthyl group; a phenanthryl group; a fluorenyl group substituted with an alkyl group; a carbazole group substituted with an aryl group; a carbazole group; a benzocarbazole group; a benzocarbazole group substituted with an aryl group; a dibenzothiophene group; a dibenzofuranyl group; or a triazine group substituted with an aryl group.

### Claim 9 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 4 or 5:
in Formulae 4 and 5,
the definitions of Ar1, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1,
the definition of Ar3 is the same as that of Ar1,
Y1 and Y2 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
m is an integer or 0 to 3 and n is an integer of 0 to 4, and
when m and n are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 10 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 8 or 9:
in Formulae 8 and 9,
the definitions of Ar1, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1,
Y3 and Y4 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
y3 and y4 are the same as or different from each other, and are each independently an integer of 0 to 4, and
when y3 and y4 are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 11 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 12 or 13:
in Formulae 12 and 13,
the definitions of Ar1, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1,
W1 and W2 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
w1 is an integer of 0 to 3,
w2 is an integer of 0 to 4, and
when w1 and w2 are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 12 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 16 or 17:
in Formulae 16 and 17,
the definitions of Ar1, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1,
T1 and T2 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combine with an adjacent group to form a ring,
t1 is an integer of 0 to 3,
t2 is an integer of 0 to 4, and
when t1 and t2 are each 2 or more, the structures in the parenthesis are the same as or different from each other.

### Claim 13 (depends on 1)

The compound of claim 1, wherein Formula 1 is represented by the following Formula 20 or 21:
in Formulae 20 and 21,
the definitions of Ar1, R1 to R6, L1, L2, a, b, p, and q are the same as those in Formula 1,
Ar6 and Ar7 are the same as or different from each other, and are each independently a nitrile group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group,
X1 to X3 are the same as or different from each other, and are each independently CR or N, and
R is hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted aralkyl group; a substituted or unsubstituted aralkenyl group; a substituted or unsubstituted alkylaryl group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted aralkylamine group; a substituted or unsubstituted heteroarylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylheteroarylamine group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or combines with an adjacent group to form a ring.

### Claim 14 (depends on 1)

The compound of claim 1, wherein L2 is any one selected from the following structures:
the structures are optionally unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium; a halogen group; a nitrile group; a nitro group; a hydroxy group; a carbonyl group; an ester group; an imide group; an amino group; a phosphine oxide group, an alkoxy group; an aryloxy group; an alkylthioxy group; an arylthioxy group; an alkylsulfoxy group; an arylsulfoxy group; a silyl group; a boron group; an alkyl group; a cycloalkyl group; an alkenyl group; an aryl group; an aralkyl group; an aralkenyl group; an alkylaryl group; an alkylamine group; an aralkylamine group; a heteroarylamine group; an arylamine group; an arylphosphine group; and a heterocyclic group.

### Claim 15 (depends on 1)

The compound of claim 1, wherein the compound of Formula 1 is any one selected from the following structural formulae:

### Claim 16 (depends on 1)

An organic light emitting device, comprising:
a first electrode;
a second electrode provided to face the first electrode; and
one or more organic material layers provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layers comprise the multicyclic compound including nitrogen of claim 1.

### Claim 17 (depends on 16)

The organic light emitting device of claim 16, wherein the organic material layer comprising the multicyclic compound including nitrogen is a hole injection layer; a hole transporting layer; or a layer which simultaneously injects and transports holes.

### Claim 18 (depends on 16)

The organic light emitting device of claim 16, wherein the organic material layer comprising the multicyclic compound including nitrogen is an electron injection layer; an electron transporting layer; or a layer which simultaneously injects and transports electrons.

### Claim 19 (depends on 16)

The organic light emitting device of claim 16, wherein the organic material layer comprising the multicyclic compound including nitrogen is a light emitting layer.