Vanadium di-nuclear complex

摘要

A vanadium di-nuclear complex represented by the following general formula (1-3):wherein A¹, A², A³ and A⁴ each independently represent an oxygen atom, or NR¹¹, and B¹, B², B³ and B⁴ each independently represent -O- or NR¹²-;R¹, R², R³, R⁴, R⁵, R⁶, R⁷ and R⁸ each independently represent a C1-30 hydrocarbon group optionally substituted by a C1-50 alkoxy, nitro, cyano or halogen group; or a C1-40 hydrocarbonoxy group optionally substituted by a C1-50 alkoxy, nitro, cyano or halogen group; R⁹ and R¹⁰ each independently represent a C 1-20 alkylene group optionally substituted by a C1-50 alkoxy, nitro, cyano or halogen group; or R⁹ and R¹⁰ represent a C6-60 arylene group optionally substituted by a C1-50 alkyl, C7-50 aralkyl, C1-50 alkoxy, nitro, cyano or halogen group; or R⁹ and R¹⁰ represent -O-, -S--SO₂- or NR¹³-; and when R⁹ and R¹⁰ exist in a plural number respectively, they may be the same or different; m and n each independently represent an integer of 1 to 7; R¹¹, R¹² and R¹³ each independently represent a hydrogen atom or a C1-30 hydrocarbon group optionally substituted by a C1-50 alkoxy, nitro, cyano or halogen group; when R¹¹, R¹² and R¹³ exist in a plural number respectively, they may be the same or different; when both of A¹ and A² and/or both of A³ and A⁴ are together NR¹¹ respectively, two R¹¹s may combine to form a C1-20 divalent hydrocarbon group optionally substituted by a C1-30 hydrocarbon, C1-40 hydrocarbonxy, nitro, cyano or halogen group which connects A¹ and A² and/or A³ and A⁴ to each other; and when both of B¹ and B² and/or both of B³ and B⁴ are together -NR¹²- respectively, two R¹²s may combine to form a C1-20 divalent hydrocarbon group optionally substituted by a C1-30 hydrocarbon, C1-40 hydrocarbonxy, nitro, cyano or halogen group which connects B¹ and B² and/or B³ and B⁴ to each other.