Synthesis and X-ray structure of a highlyhindered N-functionalized alkyl-cobalt(II) complex trans-[Co{[C(SiMe3)2C5H4N-2}2]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

Synthesis and X-ray structure of a highlyhindered N-functionalized alkyl-cobalt(II) complex trans-[Co{[C(SiMe3)2C5H4N-2}2]

Affiliation:	2. Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, United Kingdom;3. Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Ghent, Belgium;4. College of Science, King Saud University, Riyadh, Saudi Arabia

Abstract:	The thermally-stable cobalt(II) dialkyl compound CoR₂ [R = C(SiMe₃)₂C₅H₄N-2] (1) has been prepared by reaction of [{LiR}₂] with cobalt(II) chloride in ether. An X-ray structural study has revealed a centrosymmetric molecular skeleton (for two nearly identical independent molecules) in which a pair of sterically-hindered, functionalized pyridine ligands R⁻ are trans-chelated to the central planar four-coordinate cobalt(II) atom, with mean CoC_α and CoN distances of 2.094(6)Å and 1.919(4) Å respectively, and a C_αCoN angle of 69.6(2)°.

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