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Synthesis and X‐ray structure of two conformational isomers of [Zn(medpt)(SCN) 2 ], medpt = bis (3 – aminopropyl)methylamine
Author(s) -
Guha S.,
Mukherjee A. K.,
Maji T. K.,
Ray Chaudhuri N.
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200510555
Subject(s) - methylamine , chemistry , crystallography , supramolecular chemistry , thiocyanate , intermolecular force , crystal structure , hydrogen bond , trigonal bipyramidal molecular geometry , stereochemistry , molecule , inorganic chemistry , organic chemistry
Abstract Two conformational isomers of [Zn (medpt)(NCS) 2 ], medpt=bis(3‐aminopropyl) methylamine, (1) and (2) have been synthesised and the crystal structures are determined using single crystal X‐ray diffraction. The structures of the complexes have been solved by Patterson method and refined by full‐matrix least‐ squares techniques to R1 = 0.0524 for (1) and R1 = 0.0506 for (2), respectively. The geometry around the Zn(II) centre in both isomers is distorted trigonal bipyramidal. The two pendent thiocyanate moieties in (1), with Zn–N–C angles 167.9(4)–173.9(4)º, coordinate the mental centre almost linearly while the corresponding coordinations in (2) are significantly bent [Zn–N–C angles 150.8(3)–153.1(2)°]. Intermolecular N–H…S hydrogen bonds stabilise the crystal packing in the complexes forming infinite chains parallel to the [100] direction. The combinations of molecular chains generate three/two dimensional supramolecular framework in complexes (1) and (2). (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)