Issue 43, 2019

Germylene stabilized group 12 metal complexes and their reactivity with chalcogens

Abstract

This manuscript reports the first examples of germylene stabilized cadmium complexes {[{(i-Bu)2ATIGe(i-Pr)}2(CdI2)] (3, monomeric), [{(i-Bu)2ATIGe(i-Pr)(CdCl2)}2] (6, dimeric), [{(i-Bu)2ATIGe(i-Pr)(CdI2)}2] (7, dimeric)} and novel germylene zinc complexes {[{(i-Bu)2ATIGe(i-Pr)}2(ZnCl2)] (2, monomeric), [{(i-Bu)2ATIGe(i-Pr)(ZnI2)}2] (5, dimeric)} (ATI = aminotroponiminate). The reactions of germylene zinc complex [{(i-Bu)2ATIGe(i-Pr)(ZnCl2)}2] (4) with elemental sulphur and selenium resulted in the first examples of germathione and germaselenone stabilized ZnCl2 complexes [{(i-Bu)2ATIGe(i-Pr)(S)(ZnCl2)}2] (8) and [{(i-Bu)2ATIGe(i-Pr)(Se)(ZnCl2)}2] (9), respectively. Compound 4 was obtained through the reaction of compound 2 with ZnCl2. Interconversions between the monomeric and dimeric zinc/cadmium complexes (24/37) are shown. Compounds 2–3 and 5–9 are characterized by multinuclear NMR spectroscopy and single crystal X-ray diffraction studies are performed on compounds 2–3, 5–7, and 9. To understand the nature of bonding in the first examples of germylene cadmium complexes, ab initio calculations are also carried out on compounds 3 and 7.

Graphical abstract: Germylene stabilized group 12 metal complexes and their reactivity with chalcogens

Supplementary files

Article information

Article type
Paper
Submitted
19 Nov 2018
Accepted
30 Sep 2019
First published
01 Oct 2019

Dalton Trans., 2019,48, 16366-16376

Germylene stabilized group 12 metal complexes and their reactivity with chalcogens

S. Sinhababu, M. K. Sharma, P. Mahawar, S. Kaur, V. K. Singh, A. Paliwal, D. Yadav, H. K. Kashyap and S. Nagendran, Dalton Trans., 2019, 48, 16366 DOI: 10.1039/C8DT04589E

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