Organic compound and electroluminescent device

An organic compound having a structure shown in formula (1),

• wherein Z is a single bond, O, S, SO or SO2;
• X1-X6 are each independently X, X-substituted C6-C30 aryl or X-substituted C2-C30 heteroaryl, and X is F, CN, or completely or partially fluorine-substituted C1-C4 fluoroalkyl;
• Z1-Z3 are each independently O, S, Se, NR1, or CR2R3;
• wherein R1-R3 are each independently hydrogen, deuterium, halogen, CN, substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C3-C20 cycloalkyl, substituted or unsubstituted C1-C20 heteroalkyl, substituted or unsubstituted C7-C30 aralkyl, substituted or unsubstituted C1-C20 alkoxy, substituted or unsubstituted C6-C30 aryloxy, substituted or unsubstituted C2-C20 alkenyl, substituted or unsubstituted C2-C20 alkynyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C3-C30 heteroaryl, substituted or unsubstituted C3-C20 alkylsilyl, substituted or unsubstituted C6-C20 arylsilyl, substituted or unsubstituted C1-C6 alkylsulfinyl, substituted or unsubstituted C1-C6 alkylsulfonyl, or substituted or unsubstituted C1-C6 alkylcarbonyl;
• wherein at least one of R1-R3 is a group having an electron-withdrawing group;
• wherein the substituents on R1-R3 are F, CN, completely or partially fluorine-substituted C1-C4 fluoroalkyl, completely or partially fluorine-substituted C1-C4 alkylsulfinyl, completely or partially fluorine-substituted C1-C4 alkylsulfonyl, or completely or partially fluorine-substituted C1-C4 alkylcarbonyl;
• and
• wherein the heteroalkyl and heteroaryl contain at least one O, N or S heteroatom.