Zincation of primary amines: synthesis and structures of dimeric alkylzinc amides |
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| Institution: | 1. Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 9, (Haus D), D-81377 Munich, Germany;2. Anorganische Chemie II, Universität Siegen, D-57068 Siegen, Germany;1. Kazakhstan-Britain Technical University, Almaty, Kazakhstan;2. Tomsk Polytechnic University, Tomsk, Russia;3. Innovation and Development Agency, Almaty, Kazakhstan;1. ‘Ilie Murgulescu’ Institute of Physical Chemistry of the Romanian Academy, Colloid Chemistry Laboratory, 202 Spl. Independentei, 060021 Bucharest, Romania;2. Department of Engineering of Polymer Materials, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, H. Sienkiewicza 112, 90-363 Lodz, Poland;1. Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441-8580, Japan;2. Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh;3. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;4. Graduate School of Biomedical Engineering, Tohoku University, Aoba, Sendai 980-8575, Japan |
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| Abstract: | The zincation of triisopropylsilylamine with dimethyl- and diethylzinc yields dimeric methylzinc (1) and ethylzinc triisopropylsilylamide (2). Complex 1 crystallizes in the monoclinic space group P21/n, 2 in P21/c. The reaction of dimethylzinc with adamantylamine gives (THF)ZnMe](AdNH2)ZnMe]μ-N(H)Ad]2 (3) which crystallizes in the monoclinic space group P21/n. All these compounds have central Zn2N2 cycles. Contrary to 1 and 2 with triply coordinated metal centers, the zinc atoms in 3 show a distorted tetrahedral coordination sphere due to the contact to the neutral coligands THF and adamantylamine. |
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