Über Polystannane. III. 1,2-Dichlortetramethyldistannan,eine Sn?Sn-verknüpfte helicale Bandstruktur [(…︁SnMe2?Cl…︁SnMe2?Cl…︁)∞]2 |
| |
| Authors: | S Adams M Drger B Mathiasch |
| |
| Institution: | S. Adams,M. Dräger,B. Mathiasch |
| |
| Abstract: | On Polystannanes. III. 1,2-Dichloro-tetramethyl-distannane. Forming a Sn? Sn-connected Helical Double Chain Structure (…?SnMe2Cl…?SnMe2? Cl…?)∞]2 The crystal structure of the title compound has been determined at ?160°C and refined to R = 0.071 (bond lengths Sn? Sn 277.0(2), Sn? Cl 244.2(3) and 244.8(3), Sn? C 214(2) pm). Intermolecular Sn…?Cl connection (324.0(3) and 329.2(3) pm) results in a double chain structure. 119Sn-NMR spectra in CH2Cl2 and acetone exhibit a movable temperature dependent coordination of acetone at the distannane (1J(119Sn? 119Sn) 8000 to 9000 Hz; appr. 5000 Hz in CH2Cl2). |
| |
| Keywords: | |
|
|
