A compound represented by formula: in formula, R 5 represents an electron donating group, R 6 represents a hydrogen atom, a substituted or unsubstituted aryl group or an electron donating group, L 5 represents a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, L 6 represents a single bond, a substituted or unsubstituted heteroarylene group or a substituted or unsubstituted arylene group, the arylene group is a phenylene group, naphthylene group, azulenylene group, indanylene group, or tetralinylene group, the heteroarylene group is a pyrrolylene group, furylene group, thienylene group, imidazolylene group, pyrazolylene group, oxazolylene group, isoxazolylene group, thiazolylene group, isothiazolylene group, triazolylene group, oxadiazolylene group, thiadiazolylene group, tetrazolylene group, pyridylene group, pyrazinylene group, pyrimidinylene group, pyridazinylene group, triazinylene group, indolylene group, benzofurylene group, benzothienylene group, benzimidazolylene group, benzoxazolylene group, benzothiazolylene group, quinolylene group, isoquinolylene group, or quinoxalinylene group, the electron donating group is at least one selected from the group consisting of the groups represented by formulas to: in formulas to, R represents a hydroxy group, halogeno group, C1-20 alkyl group, C1-20 alkoxy group, C1-20 alkylthio group, C1-20 alkyl substituted amino group, C6-40 aryl-substituted amino group, C6-40 aryl group, 5- to 40-membered heteroaryl group, C2-10 alkenyl group, C2-10 alkynyl group, C2-20 alkylamido group, C6- 20 arylamide group, or tri C1-10 alkylsilyl group, a and b each independently represent a number of R in the parentheses and are an integer of 0 to 4, c represents a number of R in the parentheses and is an integer of 0 to 2, d represents a number of R in the parentheses and is an integer of 0 to 5, when there are a plurality of R, they may be the same substituents or different substituents, two adjacent Rs may bond together to form a benzene ring, naphthalene ring, pyridine ring, pyridazine ring, pyrimidine ring, pyrazine ring, pyrrole ring, imidazole ring, pyrazole ring, imidazoline ring, oxazole ring, isoxazole ring, thiazole ring, isothiazole ring, cyclohexadiene ring, cyclohexene ring, cyclopentene ring, cycloheptatriene ring, cycloheptadiene ring, or cycloheptene ring with the carbon atoms to which Rs are bonded, ∗ represents a bonding site, substituents which form the substituted groups mentioned above are selected from the group consisting of: a halogeno group, C1-6 alkyl group, C2-6 alkenyl group, C2-6 alkynyl group, C3-8 cycloalkyl group, C3-8 cycloalkenyl group, C6-10 aryl group, 5-membered heteroaryl group, 6-membered heteroaryl group, fused ring of heteroaryl group, cyclic ether group, cyclic amino group, hydroxyl group, oxo group, C1-6 alkoxy group, C2-6 alkenyloxy group, C2-6 alkynyloxy group, C6-10 aryloxy group, 5- to 6-membered heteroaryloxy group, carboxyl group, formyl group, C1-6 alkylcarbonyl group, formyloxy group, C1-6 alkylcarbonyloxy group, C1-6 alkoxycarbonyl group, C1-6 haloalkyl group, C2-6 haloalkenyl group, C2-6 haloalkynyl group, C3-6 halocycloalkyl group, Cl-6 haloalkoxy group, C2-6 haloalkenyloxy group, C1-6 haloalkylcarbonyl group, cyano group, nitro group, amino group, C1-6 alkylamino group, C6-10 arylamino group, formylamino group, C1-6 alkylcarbonylamino group, C1-6 alkoxycarbonylamino group, C1-6 alkylsulfoxyimino group, aminocarbonyl group, C1-6 alkylaminocarbonyl group, imino C1-6 alkyl group, hydroxyimino C1-6 alkyl group, Cl-6 alkoxyimino C1-6 alkyl group, mercapto group, 1-6 alkylthio group, C1-6 haloalkylthio group, C2-6 alkenylthio group, C2-6 alkynylthio group, C1-6 alkylsulfinyl group, C1-6 haloalkylsulfinyl group, C2-6 alkenylsulfinyl group, C2-6 alkynylsulfinyl group, C1-6 alkylsulfonyl group, C1-6 haloalkylsulfonyl group, C2-6 alkenylsulfonyl group, C2-6 alkynylsulfonyl group, tri C1-6 alkylsilyl group, and tri C6-10 arylsilyl group.