Crystallographic and IR spectral study ofcis-bis(creatinine-N)dinitro platinum(II) |
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| Authors: | J Macicek O Angelova G Gencheva M Mitewa P R Bontchev |
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| Institution: | (1) Institute of Applied Mineralogy, Bulgarian Academy of Sciences, Rakovski 92, 1000 Sofia, Bulgaria;(2) Department of Chemistry, Sofia University, A. Ivanov Avenue 1, 1126 Sofia, Bulgaria |
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| Abstract: | Acis-Pt(creat)2(NO2)2 complex was synthesized stereoselectively in a high yield (65%) and characterized by IR spectral and X-ray diffraction analysis. Crystal data: Pt(C4H7N3O)2(NO2)2,M
r=767.55, monoclinic, space groupP21/n,a=9.736(1),b=13.433(1),c=12.098(1) Å, =110.55(1)°,V
c=1482(1) Å3,Z=2,D
x=3.441 g cm–3, (MoK )=0.71073 Å, =97.0 cm–1,F(000)=1504,T=292 K,R=0.026 andR
w=0.028 for 2061 observed reflections with I>2 (I). The structure consists of Pt(creat)2(NO2)2 molecules disposed in general positions and joined by N-H O and N-HN hydrogen bonds. The platinum atom has square-planar PtN4 coordination of twocis disposed pairs of nitro Pt-Nav 2.023(7) Å] and creatinine Pt-N(endo)av 1.991(8) Å] ligands. The creatinine moieties are planar and tilted to the equatorial plane by ~80°. |
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