Synthesis and coordination chemistry (with platinum(II) and molybdenum(0)) of new bis(bis(trifluoromethyl)phosphano)alkanes. Structure of a new bis(phosphano)methanide complex
Two known and four new bis(phosphano)alkanes (CF/sub 3/)/sub 2/P(CH/sub 2/)/sub n/P(CF/sub 3/)/sub 2/, n = 1-3; ((CF/sub 3/)/sub 2/PCR(CH/sub 3/)P(CF/sub 3/)/sub 2/, R = H, CH/sub 3/; (CF/sub 3/)/sub 2/P(CF/sub 2/)/sub 2/P(CF/sub 3/)/sub 2/) have been prepared in good yield by an improved procedure. PtCl/sub 2/ and Mo(CO)/sub 4/ complexes of these highly ..pi..-acidic ligands have been prepared by standard routes. Thus, displacement of benzonitrile from (PtCl/sub 2/(PhCN)/sub 2/) affords (PtCl/sub 2/LL)(LL = (CF/sub 3/)/sub 2/P(CH/sub 2/)/sub n/P(CF/sub 3/)/sub 2/, n = 2,3; LL = (CF/sub 3/)PCR(CH/sub 3/)P(CF/sub 3/)/sub 2/, R = H, CH/sub 3/; LL = (CF/sub 3/)/sub 2/P(CF/sub 2/)/sub 2/P(P)(CF/sub 3/)/sub 2/). Similarly, piperidine is displaced from cis-(Mo(CO)/sub 4/(piperidine)/sub 2/) to give (Mo(CO)/sub 4/(LL)), (LL = (CF/sub 3/)/sub 2/P(CH/sub 2/)/sub n/P(CF/sub 3/)/sub 2/, n = 2,3; LL = (CF/sub 3/)/sub 2/P(CF/sub 2/)/sub 2/P(CF/sub 3/)/sub 2/). Self-dehydrochlorination of (PtCl/sub 2/((CF/sub 3/)/sub 2/PCH(CH/sub 3/)P(CF/sub 3/)/sub 2/)) in the solid state at 150/degrees/C gives the complex (Pt/sub 2/(..mu..-Cl)/sub 2/((CF/sub 3/)/sub 2/PC(CH/sub 3/)P(CF/sub 3/)/sub 2/)/sub 2/) (34), shown by single-crystal X-ray crystallography to contain two chelating bis(phosphano)methanide ligands. The crystal parameters of 84 are reported. 47 references, 4 figures, 8 tables.
- Research Organization:
- Univ. of Alberta, Edmonton (Canada)
- OSTI ID:
- 6260363
- Journal Information:
- Inorg. Chem.; (United States), Vol. 27:22
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
SYNTHESIS
MOLYBDENUM COMPLEXES
ORGANIC FLUORINE COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PLATINUM COMPLEXES
EXPERIMENTAL DATA
FLUORINE 19
NMR SPECTRA
PHOSPHORUS 31
PROTONS
BARYONS
COMPLEXES
DATA
ELEMENTARY PARTICLES
FERMIONS
FLUORINE ISOTOPES
HADRONS
HYDROCARBONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHOSPHORUS ISOTOPES
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
400202 - Isotope Effects
Isotope Exchange
& Isotope Separation