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Preparation and structural studies on diorganotin(IV) complexes of N-nitroso-N-phenylhydroxylaminates |
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| Authors: | Attila Szorcsik,Istvá n Kö ké ny,Michelangelo Scopelliti,Lorenzo Pellerito |
| Affiliation: | a Bioinorganic Chemistry Research Group of the Hungarian, Academy of Sciences, P.O. Box 440, 6701 Szeged, Hungary b SZTE, Department of Inorganic and Analytical Chemistry, P.O. Box. 440, 6701 Szeged, Hungary c Institute of Structural Chemistry, Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, 1525 Budapest, Hungary d Universitá di Palermo, Dipartimento di Chimica Inorganica e Analitica, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy |
| Abstract: | Diorganotin(IV)-complexes of the N-nitroso-N-phenylhydroxylaminates (hereinafter cupf), Et2Sn(cupf)2 (1), Bu2Sn(cupf)2 (2), {[Bu2Sn(cupf)]2O}2 (3), t-Bu2Sn(cupf)2 (4) and Oc2Sn(cupf)2 (5, 6) were prepared and characterised by FT-IR and Mössbauer spectroscopic measurements. The binding modes of the ligand were identified by FT-IR spectroscopy, and it was found that the ligand is coordinated in chelating or bridging mode to the organotin(IV) center. The 119Sn Mössbauer and FT-IR studies support the formation of trans-Oh (1-6) structures. The X-ray diffraction analysis of 4 revealed that the tin centre is in a skew-trapezoidal geometry defined by four donors derived from the cupferronato ligands and two carbon atoms from the tin-bound tbutyl substituents. The 119Sn NMR investigations indicate that in solution 4 retains its hexacoordinated nature. |
| Keywords: | Diorganotin(IV) FT-IR Mö ssbauer 1H 13C and 119Sn NMR spectroscopy Cupferron X-ray diffraction |
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