Z. Naturforsch. 2014, 69b, 1429 – 1440
Bis-2-thienyldiethylaminophosphane as a Ligand in Late Transition Metal Complexes and its Transformation to Bis-2-thienylphosphane
Markus Granitzka, Peter Stollberg and Dietmar Stalke
Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
Reprint requests to Prof. Dr. D. Stalke. Fax: (+)49-551-39-33373. E-mail: dstalke@chemie.uni-goettingen.de
Received July 1, 2014 / published online December 19, 2014
Dedicated to Professor Hubert Schmidbaur on the occasion of his 80th birthday
Bis-2-thienyldiethylaminophosphane (C4H3S)2PNEt2 (1) is introduced as a ligand for late transition metal complexes ([(H3C4S)2PNEt2]nMXmLp), with M = Ni(II), Au(I), Cu(I), Pd(II), Ir(I), X = Cl, Br and L = NCMe, COD, (27). Reactions of 1 with the late transition metal salts NiCl2 ·dme, (Me2S)AuCl, CuCl, PdCl2(PhCN)2, and [Ir(COD)Cl]2 yield the complexes [{(H3C4S)2PNEt2}2 ·NiCl2] (2), [(H3C4S)2PNEt2 ·AuCl] (3) [(H3C4S)2PNEt2 ·CuCl(CH3CN)]2 (4), [{(H3C4S)2PNEt2}2 ·PdCl2] (5), [{(H3C4S)2PNEt2}2 ·PdCl2]2 (6), and [(H3C4S)2PNEt2 ·IrCl(COD)] (7). In addition, the transformation of 1 to the valuable chlorine-substituted starting material (H3C4S)2PCl (8) and the related conversion of 8 to the secondary phosphane (H3C4S)2PH (9) is reported. The complexes 27 are stable under inert gas conditions and were characterized by single-crystal X-ray studies, NMR spectroscopy, and elemental analysis.
Key words: Phosphorus, Sulfur, Transition Metals, Phosphane, Ligand Design
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