Telluroformaldehyde, tellurido, and ditellurido derivatives of permethyltantalocene

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00018a004· OSTI ID:7102073

Shin, J H; Parkin, G ^[1]

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1. Columbia Univ., New York, NY (United States)

The telluroformaldehyde complex Cp*[sub 2]Ta-([eta][sup 2]-TeCH[sub 2])H has been prepared by the PMe[sub 3]-catalyzed addition of Te to the [Ta=CH[sub 2]] double bond in Cp*[sub 2]-Ta(CH[sub 2])H. Of the two limiting resonance structures, i.e. metal-telluroformaldehyde versus metallatellurirane, the Te-C bond length of 2.21(2) [angstrom] suggests that the tantalum(V) metallatellurirane formalism may be the more appropriate description for the [Ta([eta][sup 2]-TeCH[sub 2])] interaction. Cp*[sub 2]Ta([eta][sup 2]-TeCH[sub 2])H is converted to its more stable tellurido-methyl isomer Cp*[sub 2]Ta(Te)CH[sub 3] at 130[degree]C. The ditellurido and tellurido-hydrido complexes Cp[sub 2]Ta([eta][sup 2]-Te[sub 2])H and Cp*[sub 2]Ta(Te)H have also been prepared. 31 refs., 1 fig.

• DOE Contract Number: FG02-93ER14339
• OSTI ID: 7102073
• Journal Information: Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 13:6; ISSN ORGND7; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400100 -- Analytical & Separations Chemistry
400201* -- Chemical & Physicochemical Properties
ALDEHYDES
CHEMICAL BONDS
COHERENT SCATTERING
COMPLEXES
DIFFRACTION
FORMALDEHYDE
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
SCATTERING
SYNTHESIS
TANTALUM COMPLEXES
TELLURIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION