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The Chemistry of 1,3,5-Triazacyclohexane Complexes, 3. High Yield Synthesis of [Cr{N(SiMe3)2}3] and Accurate Structure Determination by Cocrystallization with Me6Si2

✍ Scribed by Köhn, Randolf D. ;Kociok-Köhn, Gabriele ;Haufe, Matthias

Publisher
Wiley (John Wiley & Sons)
Year
1996
Tongue
English
Weight
301 KB
Volume
129
Category
Article
ISSN
0009-2940

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✦ Synopsis

Abstract

The reaction of N,N′,N′′‐trimethyl‐1,3,5‐triazacyclohexane chromium trichloride ((Me~3~TAC)CrCl~3~, 1) with LiN(SiMe~3~)~2~ or NaN(SiMe~3~)~2~ in petroleum ether yields nearly quantitatively [Cr{N(SiMe~3~)~2~}~3~] (2) with loss of the Me~3~TAC ligand. Compound 2 could be crystallized from hexamethyldisilane as [Cr{N(SiMe~3~)~2~}~3~] · (Me~6~Si~2~)~0,5~ which allowed the refinement of the X‐ray crystal structure in the trigonal space group P‐31c (no. 163) (a = 16.012(3) Å, c = 8.4796(12) Å, V = 1882.8(6) Å^3^, Z = 2) without severe disorder.

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