Polymerizable compound and optical isomer

A compound represented by the general formula (I):

• wherein R1 and R2 each independently represent a polymerizable group represented by general formula (I-R),
• in the general formula (I-R), P represents a polymerizable group;
• Sp represents a single bond, or an alkylene group having 1 to 20 carbon atoms in which one —CH2— or two or more of (—CH2—)'s which are not adjacent to each other may be each independently substituted with —O—, —COO—, —OCO—, —OCO—O—, —CO—NH—, —NH—CO—, —CH═CH— or —C≡C—, in which when plural Sp's exist, said plural Sp's may be the same or different;
• X represents —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, in which when plural X's exist, said plural X's may be the same or different, wherein P-(Sp-X)k— does not contain an —O—O— bond;
• k represents an integer of 0 to 10;
• A1, A2 and A3 each independently represent a 1,4-phenylene group, a 1,4-cyclohexylene group, a pyridine-2,5-diyl group, a pyrimidine-2,5-diyl group, a naphthalene-2,6-diyl group, a naphthalane-1,4-diyl group, a tetrahydronaphthalene-2,6-diyl group, a decahydronaphthalane-2,6-diyl group or a 1,3-dioxane-2,5-diyl group, which may be unsubstituted or substituted with one or more of substituents L's,
• Z1, Z2 and Z3 each independently represent —O—, —S—, —OCH2—, —CH2O—, —CH2CH2—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —OCO—NH—, —NH—COO—, —NH—CO—NH—, —NH—O—, —O—NH—, —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—, —CH═N—N═CH—, —CF═CF—, —C≡C— or a single bond,
• M represents an optionally-substituted trivalent aromatic group;
• T represents a group selected from the following formula (T-1) or formula (T-2):
• wherein W1 represents a group including an aromatic group and/or a non-aromatic group optionally substituted and having 1 to 80 carbon atoms, in which the aromatic group may be a hydrocarbon ring or a hetero ring, the non-aromatic group may be a hydrocarbon group or a hydrocarbon group where one or more of arbitrary carbon atoms is substituted with a hetero atom, wherein the oxygen atoms therein do not directly bond to each other, and the group may be unsubstituted or substituted with one or more of substituents LW's,
• W2 represents a hydrogen atom, or a linear or branched alkyl group having 1 to 20 carbon atoms, in which one —CH2— or two or more of (—CH2—)'s which are not adjacent to each other may be each independently substituted with —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—, and one or more of arbitrary hydrogen atoms in the alkyl group may be substituted with a fluorine atom, or W2 represents a group including an aromatic group and/or a non-aromatic group optionally substituted and having 1 to 80 carbon atoms, in which the aromatic group may be a hydrocarbon ring or a hetero ring, and the non-aromatic group may be a hydrocarbon group or a hydrocarbon group where one or more of arbitrary carbon atoms is substituted with a hetero atom (in which the oxygen atoms therein do not directly bond to each other, and the group may be unsubstituted or substituted with one or more of substituents LW's, or W2 may represent a group represented by PW-(SpW-XW)kW—, where PW represents a polymerizable group, SpW represents a spacer group or a single bond, and plural SpW's, if any, may be the same or different, XW represents —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, plural XW's, if any, may be the same or different in which PW-(SpW-XW)kW— does not contain an —O—O— bond, kW represents an integer of 0 to 10, and W1 and W2 may together form a cyclic structure,
• LW represents 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 hydroxyl 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, in which one —CH2— or two or more of (—CH2—)'s which are not adjacent to each other may be each independently substituted with —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—, and one or more of arbitrary hydrogen atoms in the alkyl group may be substituted with a fluorine atom, or LW represents a group represented by PLW-(SpLW-XLW)kLW— where PLW represents a polymerizable group, SpLW represents a spacer group or a single bond, plural SpLW's, if any, may be the same or different, XLW represents —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, plural XLW's, if any, may be the same or different in which PLW-(SpLW-XLW)kLW— does not contain an —O—O— bond, kLW represents an integer of 0 to 10, and plural LW's, if any, in the compound may be the same or different,
• Y represents a hydrogen atom, 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 hydroxyl 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, in which one —CH2— or two or more of (—CH2—)'s which are not adjacent to each other may be each independently substituted with —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—, and one or more of arbitrary hydrogen atoms in the alkyl group may be substituted with a fluorine atom, or Y represents a group represented by PY-(SpY-XY)kY— where PY represents a polymerizable group, SpY represents a spacer group or a single bond, plural SpY's, if any, may be the same or different, XY represents —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, plural XY's, if any, may be the same or different in which PY-(SpY-X)kY— does not contain an —O—O— bond, kY represents an integer of 0 to 10;
• L represents 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 hydroxyl 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, in which one —CH2— or two or more of (—CH2—)'s which are not adjacent to each other may be each independently substituted with —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—, and one or more of arbitrary hydrogen atoms in the alkyl group may be substituted with a fluorine atom, or L represents a group represented by PL-(SpL-XL)kL— where PL represents a polymerizable group, SpL represents a spacer group or a single bond, plural SpL's, if any, may be the same or different, XL represents —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, plural XL's, if any, may be the same or different in which PL-(SpL-XL)kL— does not contain an —O—O— bond, kL represents an integer of 0 to 10, plural L's, if any, in the compound may be the same or different;
• and the group that links T-M may be a single bond or a double bond.