PENTAMETHYLCYCLOPENTADIENYL IRIDIUM COMPLEXES CONTAINING CHALCOGENIDO LIGANDS - REACTIONS OF CP-ASTERISK-IR(CO)(2) WITH ELEMENTAL SULFUR AND SELENIUM

被引:25
作者
HERBERHOLD, M
JIN, GX
MILIUS, W
机构
[1] Laboratorium Für Anorganische Chemie, Universität Bayreuth, Bayreuth, D-95440
关键词
HALFSANDWICH IRIDIUM COMPLEXES; CYCLO-SULFIDO LIGANDS; CHALCOGEN-BRIDGED IRIDIUM COMPLEXES; CUBANE CLUSTERS; IRIDIUM COMPLEXES;
D O I
10.1002/cber.19951280605
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Photolysis or thermolysis of Cp*Ir(CO)(2) (1) in the presence of excess sulfur (S-8) gives Cp*Ir(CO)(S-4) (2a) which is further S decarbonylated to [Cp*Ir(mu-S-4)](2) (4a). The analogous reaction of 1 with excess selenium leads to Cp(2)*Ir,(mu-Se)(mu-Se-4) (6b). In the case of limited chalcogen supply, the products are [Cp*Ir(CO)(mu-E](2) [E = S (3a), Se 3 b)] and [Cp*Ir(mu-E)](4) [E = S (5a), Se (5b)]. A stepwise formation of the pseudocubane clusters 5a,b from dinuclear precursors is assumed. The solid-state structure of 2a has been determined by X-ray crystallography.
引用
收藏
页码:557 / 560
页数:4
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