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Title: Nickel and cyclopropane reactions and photochemistry using matrix-isolation FTIR spectroscopy. Nickelacyclobutane synthesis and photofragmentation

Journal Article · · Organometallics; (United States)
DOI:https://doi.org/10.1021/om00097a010· OSTI ID:6969986

The reactions between atomic nickel and cyclopropane in cryogenic matrices have been investigated. Atomic nickel was observed to insert spontaneously into a carbon-carbon bond of cyclopropane and form a four-membered unligated metallacycle, nickelacyclobutane. Visible photolysis induced metathesis of this metallacycle through Ni-C and C-C bond cleavages, resulting in a methylenenickel ethylene ..pi.. complex, CH/sub 2/Ni(C/sub 2/H/sub 4/). With UV irradiation this ..pi.. complex underwent activation of one of the C-H bonds of ethylene and rearranged to vinylnickel methyl, C/sub 2/H/sub 3/NiCH/sub 3/. C/sub 2/H/sub 3/NiCH/sub 3/ decomposed and released methane upon extended UV photolysis. Experimental results with cyclopropane-d/sub 6/ paralleled those of the undeuteriated system, except CD/sub 2/Ni(C/sub 2/D/sub 4/) was stable and underwent no further reactions or decomposition with UV irradiation.

Research Organization:
Rice Univ., Houston, TX (USA)
OSTI ID:
6969986
Journal Information:
Organometallics; (United States), Vol. 7:7
Country of Publication:
United States
Language:
English