Compound, polymerizable composition, polymer, holographic recording medium, optical material, and optical component

A compound represented by the following formula (2).

• [In the formula, n represents an integer of 1 to 3.
• L represents a (n+1)-valent linear saturated aliphatic hydrocarbon group optionally having a substituent.
• X represents an oxygen atom or a nitrogen atom optionally having a substituent.
• R1-2 represents an aromatic ring group represented by the following formula (2-1).
• m represents an integer of 3 to 5, and a plurality of R1-2s may be the same or different from each other.
• In the formula, the total number of carbon atoms constituting a plurality of R1-2s represented by —(R1-2)m is 25 to 70.
• The benzene ring having R1-2 in the formula may further have a substituent other than R1-2.
• R2 represents a hydrogen atom or a methyl group.]
• [In the formula (2-1), R3 represents a substituent.
• When a plurality of R3s are present in the formula (2-1), they may be bonded to each other to form a ring fused to the naphthalene ring in the formula (2-1), and the fused ring may further have a substituent.
• p represents 0 or an integer up to the maximum number of substitutions that can be substituted on the naphthalene ring shown in the formula (2-1).
• * represents a bond to the benzene ring in the formula (2).]

A polymer comprising a structure represented by the following formula (P1-1) or the following formula (P1-2).

• [In the formula (P1-1), n represents an integer of 1 to 3.
• L1 represents an optionally branched (n+1)-valent linking group, excluding linear saturated aliphatic hydrocarbon groups.
• X represents an oxygen atom or a nitrogen atom optionally having a substituent.
• R1-1 represents an aromatic ring group optionally having a substituent.
• m represents an integer of 3 to 5, and a plurality of R1-1 may be the same or different from each other.
• In the formula, the total number of carbon atoms constituting a plurality of R1-1s represented by —(R1-1)m is 25 to 70.
• The benzene ring having R1-1 in the formula may further have a substituent other than R1-1.
• R2 represents a hydrogen atom or a methyl group.
• In the formula (P1-2), n represents an integer of 1 to 3.
• L represents an (n+1)-valent linear saturated aliphatic hydrocarbon group optionally having a substituent.
• X represents an oxygen atom or a nitrogen atom optionally having a substituent.
• R1-2 represents an aromatic ring group represented by the following formula (2-1).
• m represents an integer from 3 to 5, and a plurality of R1-2s may be the same or different from each other.
• In the formula, the total number of carbon atoms constituting a plurality of R1-2s represented by -(R1-2)m is 25 to 70.
• The benzene ring having R1-2 in the formula may further have a substituent other than R1-2.
• R2 represents a hydrogen atom or a methyl group.
• q represents the number of repetitions of the structure represented by the formula (P1-1) or the formula (P1-2).]
• [In the formula (2-1), R3 represents a substituent.
• When a plurality of R3s are present in the formula (2-1), they may be bonded to each other to form a ring fused to the naphthalene ring in the formula (2-1), and the fused ring may further have a substituent.
• p represents 0 or an integer up to the maximum number of substitutions that can be substituted on the naphthalene ring shown in the formula (2-1).
• * represents a bond to the benzene ring in the formula (P1-2).]