Synthesis of Os3W alkylidyne and alkylidene clusters by solid-state pyrolysis; direct C-O bond cleavage of co-ordinated ketenyl ligand

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jia-Huey Gong
  • Chi-Chung Chen
  • Yun Chi
  • Sue-Lein Wang
  • Fen-Ling Liao

Detail(s)

Original languageEnglish
Pages (from-to)1829-1834
Journal / PublicationJournal of the Chemical Society, Dalton Transactions
Issue number12
Publication statusPublished - 1993
Externally publishedYes

Abstract

The heterometallic tetranuclear ketenyl compound [Os3(CO)10(µ-H){C(O)CH2W(CO)3(η-C5Me5)}]1 possessing a pendant W(η-C5Me5)(CO)3 substituent is prepared by condensation of [Os3(CO)10(NCMe)2] with the aldehyde complex [W(η-C5Me5)(CO)3(CH2CHO)]. Pyrolysis of 1 in the solid state at 185 °C afforded four tetrahedral compounds [WOs3(η-C5Me5)(CO)9(µ-O)(µ3-CMe)]2, [WOs3(η-C5Me5)(CO)9(µ-O)(µ-H)(µ-CHMe)]5, [WOs3(η-C5Me5)(CO)113-CMe)]3 and [WOs3(η-C5Me5)(CO)113-CH)]4, demonstrating a unique example of C–O bond scission for the ligated ketene fragment. Since treatment of 2 with H2 in toluene also afforded 5 in moderate yield, it is highly probable that the latter is produced via reaction with trace amounts of H2 generated from the decomposition of 1. The molecular structures of 2 and 4 have been determined by single-crystal X-Ray analysis.

Citation Format(s)

Synthesis of Os3W alkylidyne and alkylidene clusters by solid-state pyrolysis; direct C-O bond cleavage of co-ordinated ketenyl ligand. / Gong, Jia-Huey; Chen, Chi-Chung; Chi, Yun; Wang, Sue-Lein; Liao, Fen-Ling.

In: Journal of the Chemical Society, Dalton Transactions, No. 12, 1993, p. 1829-1834.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review