X-ray crystal structure and homonuclear sup 31 P- sup 31 P. delta. /J-resolved NMR spectroscopic studies of (AgIr sub 2 (dimen) sub 4 (PPh sub 3 ) sub 2 )(PF sub 6 ) sub 3. Observation of a statistical mixture of head/tail isomers
Journal Article
·
· Inorganic Chemistry; (USA)
- Univ. of Minnesota, Minneapolis (USA)
The reaction of (AgIr{sub 2}(dimen){sub 4}(PF{sub 6}){sub 3}) (dimen = 1,8-diisocyanomenthane) with 2 equiv of triphenylphosphine results in the coordination of triphenylphosphine to the iridium atoms and forms a linear P-Ir-Ag-Ir-P unit. Recrystallization of the compound from acetone/hexane solutions afforded crystals of (AgIr{sub 2}(dimen){sub 4}(PPh{sub 3}){sub 2})(PF{sub 6}){sub 3} (AgIr{sub 2}C{sub 84}H{sub 102}F{sub 18}N{sub 8}P{sub 5}) that were the subject of X-ray structural characterization. The structure features an encapsulated two-coordinate Ag{sup +} ion with Ir{sup +}-Ag{sup +} distances of 2.642 (1) {angstrom}. The dimen ligands are disordered in a head to tail fashion about the iridium metal centers. Homonuclear {sup 31}P{l brace}H{r brace} {delta}/J-resolved NMR data for solutions of the (AgIr{sub 2}(dimen){sub 4}(PPh{sub 3}){sub 2}){sup 3+} cation show that a statistical distribution of four different geometrical isomers with different head to tail orientations of the dimen ligand occurs in the complex. 20 refs. 5 figs., 3 tabs.
- OSTI ID:
- 5873063
- Journal Information:
- Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 29:22; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
CHEMICAL PREPARATION
COMPLEXES
CRYSTAL STRUCTURE
DATA
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IRIDIUM COMPLEXES
ISOTOPES
LIGHT NUCLEI
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHORUS 31
PHOSPHORUS COMPOUNDS
PHOSPHORUS FLUORIDES
PHOSPHORUS ISOTOPES
SILVER COMPLEXES
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
CHEMICAL PREPARATION
COMPLEXES
CRYSTAL STRUCTURE
DATA
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IRIDIUM COMPLEXES
ISOTOPES
LIGHT NUCLEI
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHORUS 31
PHOSPHORUS COMPOUNDS
PHOSPHORUS FLUORIDES
PHOSPHORUS ISOTOPES
SILVER COMPLEXES
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES