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BIBTEX RIS

One step substitution of NO and Cl by a me-ring in CpCr(NO)2Cl: synthesis and molecular structure of CpCr(NO)‘DMPYS’ (Cp=π-C5H5; DMPYS=4,6-dimethyl-pyrimidine-2-thiolato)

2002; Elsevier BV; Volume: 656; Issue: 1-2 Linguagem: Inglês

10.1016/s0022-328x(02)01581-4

ISSN

1872-8561

Autores

Gelson Manzoni de Oliveira, Gleison Antônio Casagrande, Ramão Marceli Fernandes, E. Faoro, Ernesto Schulz Lang, Péter Mayer,

Tópico(s)

Crystal structures of chemical compounds

Resumo

CpCr(NO)2Cl reacts in THF under reflux with the Na salt of 4,6-dimethyl-pyrimidin-2-thiol to give CpCr(NO)(DMPYS)·1/4 toluene (Cp=π-C5H5; DMPYS=4,6-dimethylpyrimidine-2-thiolato) and NaCl. The ligand substitution in CpCr(NO)2Cl probably occurs over displacement of NO followed by Cl− elimination. CpCr(NO)‘DMPYS’ crystallizes in the triclinic space group P1̄, formally with 25% of a toluene solvate molecule for each CpCr(NO)(DMPYS)-unity. In the new complex, the chromium atom shows a ‘tetrahedral’ coordination geometry derived from the octahedral structural principle, with a four members ring formed by the metal atom and the fragment SCN of the ligand.

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