Organoplatinum(IV) compounds
| Autor: | Howard C. Clark, M. Parvez, George Ferguson, Vimal K. Jain |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Stereochemistry
Organic Chemistry chemistry.chemical_element Crystal structure Biochemistry Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Octahedral molecular geometry X-ray crystallography Materials Chemistry Molecule Orthorhombic crystal system Physical and Theoretical Chemistry Platinum Organoplatinum Methyl group |
| Zdroj: | Journal of Organometallic Chemistry. 270:365-373 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/0022-328x(84)80385-x |
| Popis: | Compounds of the types Me3PtX(NN) (where X = Cl, I, OAc, NO3; NN = bis(1-pyrazolyl)methane (pz2CH2), bis(3,5-dimethyl-1-pyrazolyl)methane ((Me2pz)2CH2), or bis(2-pyridyl)methane (py2CH2)), [Me3Pt(NNN)][PF6] (where NNN=tris(1-pyrazolyl)methane (pz3CH), or tris(2-pyridyl)methane (py3CH)), and [Me3Pt((Me2pz)2CH2(py)][PF6] have been prepared and characterized by elemental analyses and 1H and 13C NMR spectroscopy; the structure of Me6PtI[(Me2pz)2CH2] (1) has also been determined by X-ray crystallography. Crystals of 1 are orthorhombic, space group Pcmn with four molecules in a unit cell of dimensions a 11.936(5), b 14.462(4), c 10.138(5) A. The structure was solved by the heavy-atom method and refined by full-matrix least-squares calculations to R = 0.022 for 1719 observed data. The molecule has crystallographic mirror symmetry. The Pt atom has octahedral geometry with one methyl group trans to iodine and two methyl groups trans to the N atoms of the bidentate ligand (PtI 2.843(1), PtN, 2.236(4), PtC 2.077(6) (trans to I) and 2.032(5) A (trans to N)). |
| Databáze: | OpenAIRE |
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