Organo-tricyanoborates as tectons: Illustrative coordination polymers based on copper(I) derivatives

Haijun Yao, Matthew L. Kuhlman, Thomas B. Rauchfuss, Scott R. Wilson

Research output: Contribution to journalArticle

Abstract

The first systematic study on the use of tricyanoborates as ligands is presented. The tricyanoborates [RB(CN)3]- (R = oct and Ph) can be prepared by direct cyanation of RBCl2 precursors as well as by thermolysis of the corresponding isocyanides [RB(NC)3] -. The first organo-cyanogallates [RGa(CN)3]- (R = Bu, C6H2-2,4,6-Me3) were prepared from the corresponding dichloride, the structure of Et4N[mesGa(CN) 3] being confirmed crystallographically. The reaction of equimolar [RB(CN)3]- (R = oct, Ph) and [Cu(MeCN)4] + afforded two-dimensional polymers [RB-(CN)3Cu(NCMe)]. The sheets arise via conjoined hexagonal B3Cu3(CN) 6 rings with chair conformations. The reaction of excess [PhB(CN)3]- and [Cu(MeCN)4]+ gives the polymer [K(18-crown-6)]{Cu[PhB(CN)3]2}. Treatment of [PhB(CN)3]- with [Cu(PCy3)2(NCMe) x]PF6 gave the one-dimensional polymer [PhB(CN) 3Cu(PCy3)2], wherein two of the three BCN substituents are coordinated.

Original languageEnglish (US)
Pages (from-to)6256-6264
Number of pages9
JournalInorganic Chemistry
Volume44
Issue number18
DOIs
StatePublished - Sep 5 2005

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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