Using ligand exchange reactions to control the coordination environment of Pt(II) acetylide complexes: applications to conjugated metallacyclynes期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Using ligand exchange reactions to control the coordination environment of Pt(II) acetylide complexes: applications to conjugated metallacyclynes

Authors:	Katie Campbell Michael J Ferguson

Affiliation:	^a Department of Chemistry, University of Alberta, Edmonton, Alta, Canada T6G 2G2 ^b X-ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alta, Canada T6G 2G2

Abstract:	Ligand exchange of cis-bis(diphenylphosphino)ethylene (dppee) with trans-(Ph₃P)₂Pt(CCR)₂ easily generates the cis-complexes (dppee)Pt(CCR)₂ in 64-95% yield. This transformation is used to convert pyridine-containing macrocycle 7 to its cis-analogue 8 and the macrocyclic bipyridine analogue 10 to the unique macrocyclic ligand 11. X-ray structural characterization of trans-complexes 5a and 5b and cis-complexes 6a and 6b are reported, as is the structure of the strained macrocycle 8.

Keywords:	Alkynyl complexes Metallacycles Platinum acetylide Platinacycles
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