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Synthesis and Structural Characterization of Tin(IV) N ‐nitroso‐ N ‐phenylhydroxylaminato Complexes: Crystal Structures of Sn(O 2 N 2 Ph) 4 , Ph 2 Sn(O 2 N 2 Ph) 2 and [Me 2 Sn(O 2 N 2 Ph) 2 ] 2
Author(s) -
Deák Andrea,
Venter Monica,
Kálmán Alajos,
Párkányi László,
Radics Lajos,
Haiduc Ionel
Publication year - 2000
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(200001)2000:1<127::aid-ejic127>3.0.co;2-q
Subject(s) - tin , chemistry , crystallography , pentagonal bipyramidal molecular geometry , tetrahedral molecular geometry , coordination geometry , bipyramid , dodecahedron , raman spectroscopy , crystal structure , stereochemistry , molecule , organic chemistry , hydrogen bond , physics , optics
Reaction of cupferron [NH 4 L, L = PhN(O)NO – ] with tin(IV), diphenyltin(IV) and dimethyltin(IV) halides yields the cupferronato complexes SnL 4 ( 1 ), Ph 2 SnL 2 ( 2 ) and [Me 2 SnL 2 ] 2 ( 3 ). All were characterized by FT‐IR, FT‐Raman, NMR ( 1 H, 13 C and 119 Sn) spectroscopic methods and X‐ray structural analysis. An almost ideal, very rare dodecahedral geometry is found in the structure of 1 . The hexacoordinated tin center exhibits a bicapped tetrahedral geometry in complex 2 . The tin centers are heptacoordinated in a pentagonal bipyramidal geometry in the dimeric complex 3 . These complexes incorporate five‐membered SnO 2 N 2 and four‐membered Sn 2 O 2 inorganic rings. Vibrational spectral data are consistent with the structures determined. The 119 Sn NMR spectra indicate that in solution 1 retains its octacoordinated nature; in compound 2 the tin atom is hexacoordinated, while in 3 the tin atom is pentacoordinated.