X-ray study of Ta(CHCMe sub 3 )(S-2,4,6-C sub 6 H sub 2 -i-Pr sub 3 ) sub 3 (SEt sub 2 ) suggests why it is inactive for metathesis of ordinary olefins

Journal Article · Wed Mar 07 00:00:00 EST 1990 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00330a041· OSTI ID:7127224

Wallace, K C; Davis, W M; Schrock, R R ^[1]

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1. Massachusetts Institute of Technology, Cambridge (USA)

The catalytic effect on the metathesis of olefins of tantalum alkylidene complexes of the type Ta(CHCMe{sub 3})(DIPP){sub 3}(THF) (DIPP = 0-2,6-C{sub 6}H{sub 3}-i-Pr{sub 2}) and Ta(CHCMe{sub 3})(TIPT){sub 3}(THF) (TIPT = S-2,4,6-C{sub 6}H{sub 2}-i-Pr{sub 2}) are contrasted. The complexes of DIPP react with terminal olefins or ethylene to yield base-free tantalacyclobutane complexes, but the TIPT complexes do not react with ordinary olefins and will not methasize them. The TIPT complex has been prepared in crystalline form, and its structure was found to be significantly different from that of the DIPP complex to partially explain the differences in catalytic behavior. 13 refs., 1 fig., 1 tab.

• DOE Contract Number: FG05-86ER75292
• OSTI ID: 7127224
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 29:5; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
100300* -- Synthetic Fuels-- Properties & Composition-- (1990-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKANES
CATALYSIS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COMPLEXES
CRYSTAL STRUCTURE
DATA
DECOMPOSITION
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANOMETALLIC COMPOUNDS
TANTALUM COMPLEXES
TRANSITION ELEMENT COMPLEXES