Dilithium Hexaorganostannate(IV) Compounds |
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| Authors: | M?Sc Ireen Schrader Dr Kornelia Zeckert Dr Stefan Zahn |
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| Institution: | 1. Institut für Anorganische Chemie, Universit?t Leipzig, Johannisallee 29, 04103 Leipzig (Germany);2. Wilhelm‐Ostwald‐Institut für Physikalische und Theoretische Chemie, Universit?t Leipzig, Linnéstrasse 2, 04103 Leipzig (Germany) |
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| Abstract: | Hypercoordination of main‐group elements such as the heavier Group 14 elements (silicon, germanium, tin, and lead) usually requires strong electron‐withdrawing ligands and/or donating groups. Herein, we present the synthesis and characterization of two hexaaryltin(IV) dianions in form of their dilithium salts Li2(thf)2{Sn(2‐pyMe)6}] (pyMe=C5H3N‐5‐Me) ( 2 ) and Li2{Sn(2‐pyOtBu)6}] (pyOtBu=C5H3N‐6‐OtBu) ( 3 ). Both complexes are stable in the solid state and solution under inert conditions. Theoretical investigations of compound 2 reveal a significant valence 5s‐orbital contribution of the tin atom forming six strongly polarized tin–carbon bonds. |
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| Keywords: | computational chemistry hypercoordinate compounds metalates pyridyl ligands tin |
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