PHOTOCHEMICAL REDUCTION OF (ETA-5-CYCLOPENTADIENYL)(1,2-DISUBSTITUTED 1,2-ETHYLENEDICHALCOGENOLATO)COBALT(III) AND (ETA-5-CYCLOPENTADIENYL)-(1,2-BENZENEDITHIOLATO)COBALT(III) COMPLEXES IN THE PRESENCE OF TRIETHANOLAMINE

被引：15

作者：

AKIYAMA, T

WATANABE, Y

MIYASAKA, A

KOMAI, T

USHIJIMA, H

KAJITANI, M

SHIMIZU, K

SUGIMORI, A

机构：

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1992年 / 65卷 / 04期

关键词：

D O I：

10.1246/bcsj.65.1047

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title complexes, [Co(cp)(S2C2Y2)](cp = eta(5)-C5H5) (1) (a: Y = Ph, b: Y = 2-pyridyl, c: Y = 4-pyridyl, d: Y = -CO2Me, e: Y = -CN), [Co(cp)(S2C6H4)] (2), [Co(cp)(Se2C2Ph2)] (3), and [Co(cp)(SeSC2Ph2)] (4), are photochemically reduced to give one-electron reduced species, Co(II) complexes, under UV-irradiation in the presence of an electron donor, triethanolamine (TEOA), in acetonitrile solutions. The photoreduction is wavelength dependent. The 313 nm light is the most effective (PHI = 0.002-0.018) for all the complexes used, and the light of wavelength longer than 365 nm is ineffective for the photoreduction of 1-4. The irradiation with 254 nm light brings about decomposition of the complexes.

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页码：1047 / 1051

页数：5

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