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Divalent titanium chemistry. Synthesis, reactivity, and x-ray and neutron diffraction studies of Ti(BH/sub 4/)/sub 2/(dmpe)/sub 2/ and Ti(CH/sub 3/)/sub 2/(dmpe)/sub 2/

Journal Article · · J. Am. Chem. Soc.; (United States)
DOI:https://doi.org/10.1021/ja00260a029· OSTI ID:7148439
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Low valent organotitanium complexes have been implicated as Ziegler-Natta olefin polymerization catalysts and as stoichiometric reagents in organic synthesis. However, very few low-valent alkyls of titanium have been reported, and, in particular, the divalent oxidation state of titanium is virtually unexplored. The authors now report the synthesis and characterization of the unusual divalent tetrahydroborate complex Ti(BH/sub 4/)/sub 2/(dmpe)/sub 2/, 1, and its conversion to the methyl compound Ti(CH/sub 3/)/sub 2/(dmpe)/sub 2/, 2. Complex 2 is unique among octahedral complexes of the 3d metals in being low-spin within the t/sub 2g/ manifold and exhibits very unusual NMR features for the titanium methyl group.

Research Organization:
Univ. of Illinois, Urbana (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
7148439
Journal Information:
J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 109:26; ISSN JACSA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BORATES
BORON COMPOUNDS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
NEUTRON DIFFRACTION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXYGEN COMPOUNDS
SCATTERING
SYNTHESIS
TITANIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES
VALENCE
X-RAY DIFFRACTION