Technetium-carbon multiple bonds. Synthesis and structure of Tc(=C=CHPh)Cl(dppe)[sub 2] and [Tc([triple bond]C-CH[sub 2]-t-Bu)Cl(dppe)[sub 2]][sup +]

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00016a007· OSTI ID:7267434

Burrell, A K; Bryan, J C; Kubas, G J ^[1]

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1. Los Alamos National Lab., NM (United States)

The 16-electron complex TcCl(dppe)[sub 2] reacts with terminal alkynes to form neutral vinylidene complexes of the type Tc(=C=CHR)Cl(dppe)[sub 2] (R = Ph, Me, t-Bu). Treatment of these vinylidene complexes with acid (HBF[sub 4] for R = Ph, HNMe[sub 3]BPh[sub 4] for R = t-Bu) yields the respective terminal carbyne complexes Tc([triple bond]CCH[sub 2]R)-Cl(dppe)[sub 2][sup +] (R = Ph, t-Bu). These vinylidene and carbyne compounds represent the first examples of technetium carbenes or carbynes. X-ray structures of Tc(=C=CHPh)Cl(ddpe)[sub 2] and Tc([triple bond]CCH[sub 2]-t-Bu)Cl(dppe)[sub 2[minus]+] were determined, and the Tc-C bond lengths obtained were 1.861(9) and 1.724(7) A, respectively. 13 refs., 2 figs.

• OSTI ID: 7267434
• Journal Information: Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 13:4; ISSN 0276-7333; ISSN ORGND7
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
ALKYNES
CARBENES
CARBON
CARBYNES
CHEMICAL BONDS
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DIFFRACTION
ELEMENTS
HYDROCARBONS
MOLECULAR STRUCTURE
NONMETALS
ORGANIC COMPOUNDS
RADICALS
SCATTERING
SYNTHESIS
TECHNETIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
VINYLIDENE RADICALS
X-RAY DIFFRACTION