ISSN:
1572-8854
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The X-ray crystal structure of the title compound, [Co(NCS)2(C6H6N4)2(H2O)2], has been determined. The crystals are monoclinic, space groupC2/c, with cell dimensionsa=15.6901(5),b=7.9248(10),c=16.1278(12) Å,β=94.4(8)°V c=1999.44 Å3,M r=479.18,Z=4,D x=1.5918 Mg m3,Cu Kα radiation (graphite crystal monochromator, λ=1.54051 Å), μ(CuKα)=39.08 cm−1,F(000)=980.00 andT=290 K. Final conventionalR-factor=0.051, andR w=0.053 for 1430 “observed” reflections and 141 variables. The structure was solved using the programsPatsys andDirdif. The Co atom is octahedrally coordinated (CoN2O2N2 chromophore), with only the 5-methyl-[1,2,4]-triazolo[1,5-a]pyrimidine (5mtp) ligands in thetrans positions. The triazolo pyrimidine rings are planar and coordinated through their N(3) atoms. The H2O ligands are also H-bond donors to N(4) (intramolecularly) and to the S atoms of the NSC anions (intermolecularly).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01181961
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