Bis(cyclopentadienyl) tantalum hydrides with a Ta-Sn sigma bond, crystal and molecular structure of (eta/sup 5/-C/sub 5/H/sub 5/)/sub 2/TaH/sub 2/(Sn(CH/sub 3/Cl/sub 2/)

Journal Article · Sun May 01 04:00:00 EDT 1988 · Sov. J. Coordinat. Chem.; (United States)

OSTI ID:6975326

Arkhireeva, T M; Bulychev, B M; Protskii, A N; Soloveichik, G L; Bel'skii, V K

The reaction of Cp/sub 2/TaH/sub 3/ (Cp = eta/sup 5/-C/sub 5/H/sub 5/) with Me/sub n/SnCl/sub 4-n/ (n = 0 to 2) in benzene results in the formation of the heterometallic complexes Cp/sub 2/TaH/sub 2/ (SnMe/sub n/Cl/sub 3-n/). The synthesis of Cp/sub 2/TaH/sub 2/(SnMe/sub 2/Cl) is possible only under conditions which provide for the binding of the HCl generated by triethylamine. According to the data from Moessbauer, IR, and /sup 1/H NMR spectroscopy, the compounds obtained have a symmetric structure with two terminal Ta-H bonds and a central Ta-Sn sigma bond. The complex Cp/sub 2/TaH/sub 2/(SnMeCl/sub 2/) has been studied by x-ray diffraction analysis (a = 7.736(1) b = 10.552(1), c = 16.943(3) A, space group Pcmn, Z = 4, R = 0.0245). The molecule of Cp/sub 2/TaH/sub 2/(SnMeCl/sub 2/) has a symmetry plane passing through the centers of the Cp rings, the Ta and Sn atoms, and the C atom of the methyl group. The Ta-Sn distance is equal to 2.752(1) A, and the Ta-H distance is equal to 1.61(10) A. It has been concluded that the Ta-Sn bond has a highly s character on the basis of the spectroscopic and structural data.

• Research Organization: M. V. Lomonosov Moscow State Univ. (USSR)
• OSTI ID: 6975326
• Journal Information: Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 13:7; ISSN SJCCD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
COHERENT SCATTERING
COMPLEXES
COUPLING
COUPLING CONSTANTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DAYS LIVING RADIOISOTOPES
DIFFRACTION
DISTANCE
EVEN-ODD NUCLEI
GAMMA SPECTRA
HYDRIDES
HYDROGEN COMPOUNDS
INFRARED SPECTRA
INTERATOMIC DISTANCES
INTERMEDIATE COUPLING
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
J-J COUPLING
LATTICE PARAMETERS
MOESSBAUER EFFECT
MOLECULAR STRUCTURE
MOLYBDENUM COMPLEXES
MOLYBDENUM COMPOUNDS
MOLYBDENUM HYDRIDES
NMR SPECTRA
NUCLEI
ORTHORHOMBIC LATTICES
RADIOISOTOPES
REFRACTORY METAL COMPOUNDS
SCATTERING
SPACE GROUPS
SPECTRA
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TANTALUM COMPLEXES
TANTALUM COMPOUNDS
TANTALUM HYDRIDES
TIN 119
TIN ISOTOPES
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION