Syntheses and characterization of trigonal-bipyramidal rhodium(I) complexes of tris(2-(diphenylphosphino)ethyl) phosphine and determination of a spectroscopic trans-influence series by sup 31 P ( sup 1 H) NMR spectroscopy

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00321a023· OSTI ID:6971410

Gambaro, J J; Hohman, W H; Meek, D W ^[1]

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1. Ohio State Univ., Columbus (USA)

A series of low-spin, five-coordinate rhodium(I) complexes of the tripod ligand tris(2-(diphenylphosphino)ethyl) phosphine, PP{sub 3}, were synthesized and characterized by elemental analyses, infrared spectra, and {sup 31}P({sup 1}H) NMR spectra. The complexes have trigonal-bipyramidal geometries in which the PP{sub 3} ligand occupies four of the five sites of C{sub 3{nu}} symmetry and the variable fifth ligand is monodentate. The {sup 31}P NMR spectral patterns are consistent with AMX{sub 3} and AKMX{sub 3} spin systems. The NMR spectra permit a determination of the trans influence of the fifth ligand on the rhodium-phosphorus apical coupling constant and the chemical shifts of the apical and equatorial phosphorus atoms of PP{sub 3}. 27 refs., 4 figs., 3 tabs.

• OSTI ID: 6971410
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 28:22; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKANES
BARYONS
COMPLEXES
DATA
ELEMENTARY PARTICLES
ETHANE
EXPERIMENTAL DATA
FERMIONS
HADRONS
HYDROCARBONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
NMR SPECTRA
NUCLEI
NUCLEONS
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PHOSPHINES
PHOSPHORUS 31
PHOSPHORUS COMPOUNDS
PHOSPHORUS ISOTOPES
PROTONS
RHODIUM COMPLEXES
SPECTRA
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES