Octakis(trimethylsilyl)cyclotetrasilane. A stable cyclotetrasilane from a silylene precursor

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00070a031· OSTI ID:5837998

Chen, Y S; Gaspar, P P

Liquid-phase pyrolysis of neat methoxytris(trimethylsilyl)silane leads to the formation of octakis(trimethylsilyl)cyclotetrasilane. This stable molecule has been characterized, and the preliminary results of the x-ray structure determination indicate that the four-membered ring is planar. The intermediacy of tetrakis(trimethylsilyl)disilene is strongly indicated, but several alternatives are considered for its conversion to the cyclotetrasilane and for its formation. It is suggested that insertion of a silylene into its own precursor, followed by direct ..beta.. elimination to the disilene or by ..cap alpha.. elimination to a new silylene followed by rearrangement to the disilene, should both be considered in addition to silylene dimerization as the mechanism for disilene formation under these conditions.

• Research Organization: Washington Univ., Saint Louis, MO
• OSTI ID: 5837998
• Journal Information: Organometallics; (United States), Vol. 1:10
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HETEROCYCLIC COMPOUNDS
PYROLYSIS
SILANES
MOLECULAR STRUCTURE
CHEMICAL REACTIONS
DECOMPOSITION
HYDRIDES
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
SILICON COMPOUNDS
THERMOCHEMICAL PROCESSES
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400201 - Chemical & Physicochemical Properties