HIGH-RESOLUTION SOLID-STATE SN-119 AND C-13 NMR-STUDIES OF NOVEL ORGANOTIN(IV) COORDINATION POLYMERS INVOLVING R3SN AND M(CN)M FRAGMENTS

The room-temperature solid-state119Sn and13C CP/MAS NMR spectra of seven well-defined coordination polymers have been examined and satisfactorily interpreted: [(Μe3Sn)3CοШ(CΝ)6]∞ (1), [(Et3Sn)3CoШ(CN)6]∞ (2), [(Et3Sn)AuI(CN)2]∞ (3), [(Μe3Sn)4FeП(CN)6]∞ (4), [(Me3Sn)4RuП(CN)6]∞ (5), [(Me3Sn)4FeП(CN)6·2H2O-C4H8O2]∞ (6), and [(Me3Sn)4 FeП(CN)6·nH2O]∞ (7). Owing to the appearance of relatively sharp NMR signals, the information to be deduced from the solid-state NMR spectra greatly exceeds that to be gained by other spectroscopic techniques applicable to powders (e.g. IR, Raman, and Mössbauer spectroscopy) and X-ray powder diffractometry. In particular, the NMR spectra of 1,6, and 7 match well with the results of recent single-crystal X-ray studies. The119Sn NMR spectra of the isostructural homologues 4 and 5 may be interpreted in terms of trigonal bipyramidally configured Me3Sn(NC…)2 fragments (of the polymeric framework) as well as of quasi-mobile Me3Sn+ ions. © 1990, American Chemical Society. All rights reserved.