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Reactions of phosphine-substituted alkylidyne carbonyltungsten complexes with dithiocarbamate ligands: Phosphine substitution and alkylidyne- carbonyl coupling

  • Andreas Mayr
  • , Richard T. Chang
  • , Lee Tsung-Yi
  • , Ki Cheung On
  • , Michael A. Kjelsberg
  • , Gregory A. McDermott
  • , Donna Van Engen
  • Stony Brook University
  • Princeton University

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Reaction of the alkylidyne tungsten complexes cis- and trans- [W(CPh)Cl(CO)2(PMe3)2] with sodium diethyldithiocarbamate affords the ketenyl complex [W(OCCPh)(S2CNEt2)(CO)(PMe3)2]. Reaction of [W(CPh)Cl(CO)(PMe3)3] with diethyldithiocarbamate gives the dithiocarbamate-substituted alkylidyne tungsten complex [W(CPh)(S2CNEt2)(CO)(PMe3)2]. Reaction of cis-[W(CPh)Cl(CO) 2(PPh3)2] with sodium dimethyldithiocarbamate leads to substitution of PPh3 and formation of [W(CPh)(S2CNMe2)(CO)2 (PPh3)]. The solid state structure of [W(CPh)(S2CNEt2)(CO)(PMe3)2] was determined by X-ray crystallography. Reaction of [W(CPh) (S2CNEt2)(CO)(Me3)2] with carbon monoxide in solution as well as in the solid state affords [W(OCCPh)(2CNEt2)(CO)(PMe3) 2]. Pyrolysis of [W(OCCPh)(S2CNEt2)(CO)(PMe3)2] at 100°C in toluene solution gives [W(CPh)(S2CNEt2)(CO)(PMe3) 2].

Original languageEnglish
Pages (from-to)47-53
Number of pages7
JournalJournal of Organometallic Chemistry
Volume479
Issue number1-2
DOIs
StatePublished - Oct 4 1994

Keywords

  • Alkylidyne complexes
  • Coupling reactions
  • Ketenyl
  • Phosphines
  • Tungsten

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