Polymerizable compound and optically anisotropic object

A reverse dispersion compound represented by the general formula (I).

• (wherein R1, R2, R3, and R4 independently denote a hydrogen atom or a hydrocarbon group having 1 to 80 carbon atoms, the group may have a substituent, and any of the carbon atoms may be substituted by a heteroatom,
• W1 and W2 independently denote a single bond or a group containing a conjugated system having 2 to 100 π electrons,
• M1 and M2 independently denote a group containing a mesogenic group,
• n1 and n2 are independently 0 or 1, provided that when both n1 and n2 are 0 the corresponding groups independently denote a hydrogen atom,
• n3 is an integer in the range of 1 to 1000,
• W1, W2, M1, and M2 may independently have a substituent L, L denotes a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, a cyano group, an isocyano group, an amino group, a hydroxy group, a mercapto group, a methylamino group, a dimethylamino group, a diethylamino group, a diisopropylamino group, a trimethylsilyl group, a dimethylsilyl group, a thioisocyano group, or a linear or branched alkyl group having 1 to 20 carbon atoms with one —CH2— or nonadjacent two or more —CH2—'s optionally independently substituted by —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, or —C≡C—, any hydrogen atom of the alkyl group may be substituted by a fluorine atom, or L may denote a group represented by PL-(SL-XL)kL-, PL denotes a polymerizable group, SL denotes a spacer group or a single bond, a plurality of SL's, if present at all, may be the same or different, XL denotes —O—, —S—, —OCH2—, —CH2O—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —COO—CH2CH2—, —OCO—CH2CH2—, —CH2CH2—COO—, —CH2CH2—OCO—, —COO—CH2—, —OCO—CH2—, —CH2—COO—, —CH2—OCO—, —CH═CH—, —N═N—, —CH═N—N═CH—, —CF═CF—, —C≡C—, or a single bond, a plurality of XL's, if present at all, may be the same or different, (provided that the PL-(SL-XL)kL- has no —O—O— bond), a plurality of L's, if present at all, in the compound may be the same or different, and kL is an integer in the range of 0 to 10, and
• M1-W1, W1-M2, and/or M2-W2 may independently form a conjugated system)