Three-coordinated aminotroponiminate and aminotroponate complexes of gold(I) |
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Authors: | Meiners Jenni Herrmann Jost-Steffen Roesky Peter W |
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Institution: | Institut für Chemie und Biochemie, Freie Universit?t Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany. |
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Abstract: | Potassium N-isopropyl-2-(isopropylamino)troponiminate, K{(iPr)2ATI}, and potassium N-cyclohexyl-2-(cyclohexylamino)troponiminate, K{(Cy)2ATI}, were synthesized by treatment of the neutral ligands with an excess of KH in THF. Reaction of the potassium reagents with AuClPPh3] resulted in the gold complexes Au{(iPr)2ATI}PPh3] and Au{(Cy)2ATI}PPh3]. The solid-state structures of both compounds, in which the ligands are arranged in plane, show distorted trigonal planar coordinated gold atoms. Potassium 2-(isopropylamino)troponate (K(iPrAT)) and the cyclohexyl analogue (K(CyAT)) were obtained by deprotonation of corresponding aminotropones with KH. In an analogous fashion the gold complexes of composition Au(iPrAT)PPh3] and Au(CyAT)PPh3] were prepared by reaction of K(iPrAT) and K(CyAT) with AuClPPh3], respectively. |
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