, Volume 40, Issue 8, pp 639-645
Date: 02 Feb 2010

Crystal Structures of Trinuclear Chlorido(N,N′-diethylthiourea)copper(I) and a Second Polymorph of Iodidotris(N,N′-diethylthiourea)copper(I)

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Abstract

Reactions of N,N′-diethylthiourea (Detu) with copper(I) cyanide and copper(I) iodide in a 2:1 M ratio in acetonitrile resulted in the formation of [Cu(Detu)Cl]3·(CH3CN)0.5 (1) and [Cu(Detu)3I] (2), respectively. In compound 1 each copper atom is coordinated with one sulfur atom of Detu and with one chloride ion forming a centrosymmetric trinuclear core (Cu3S3Cl3) that exhibits a Cu–Cu separation of 2.7383(5) Ǻ indicating the existence of cuprophilic interactions. Complex 2 crystallizes with two independent molecules per asymmetric unit. Each copper atom is coordinated with three sulfur atoms of Detu and with one iodide ion in a tetrahedral arrangement.

Graphical Abstract

Reactions of N,N′-diethylthiourea (Detu) with copper(I) cyanide and copper(I) iodide in a 2:1 M ratio in acetonitrile resulted in the formation of [Cu(Detu)Cl]3·(CH3CN)0.5 (1) and [Cu(Detu)3I] (2), respectively. In compound 1 each copper atom is coordinated with one sulfur atom of Detu and with one chloride ion forming a centrosymmetric trinuclear core (Cu3S3Cl3) that exhibits a Cu–Cu separation of 2.7383(5) Ǻ indicating the existence of cuprophilic interactions. Complex 2 crystallizes with two independent molecules per asymmetric unit. Each copper atom is coordinated with three sulfur atoms of Detu and with one iodide ion in a tetrahedral arrangement.