Ring conformation and barrier to inversion of 1,3-disilacyclobutane from low-frequency vibrational spectra

Irwin, R. M.; Cooke, J. M.; Laane, Jaan

doi:10.1021/ja00452a012

Cited by 65 publications

(25 citation statements)

References 2 publications

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“…9. The complexity of the spectra for such systems can be appreciated from H=--g44(x)--+V (8) in order to properly calculate the energy levels. When this is done for DSCB, the potential function is determined to be…”

Section: 3-disilacyclobutane (Dscb): a Representative Studymentioning

confidence: 99%

Determination of vibrational potential energy surfaces from Raman and infrared spectra

Laane¹

1987

Pure and Applied Chemistry

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-Raman spectra, far-infrared spectra, and mid-infrared combination band data can be used to determine one-, two-, or three-dimensional potential energy functions which govern conformational changes in small ring molecules.The methods for such analyses are presented along with a brief history of the important contributions to this area. Recent studies on four-, five-, and sixmembered rings and on some bicyclic systems are described. Potential difficulties in the calculation of high energy barriers are discussed along with how molecular mechanics calculations can be used to help estimate such barriers. The types of molecules for which the potential energy surfaces have been determined include cyclobutane, cyclopentane, cyclopentene, cyclohexane, cyclohexene, the cyclohexadienes, and the analogous ring systems containing oxygen, sulfur, silicon, nitrogen, phosphorous, or other heteroatoms. A number of bicyclohexanes, bicycloheptenes, and other bicyclic molecules have also been investigated.

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Section: 3-disilacyclobutane (Dscb): a Representative Studymentioning

confidence: 99%

Determination of vibrational potential energy surfaces from Raman and infrared spectra

Laane¹

1987

Pure and Applied Chemistry

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“…DMS (purity better than 98%) was purchased from Aldrich and DSCB (purity better than 99%) was prepared in the lab according to the earlier reported procedure [14].…”

Section: Methodsmentioning

confidence: 99%

IR laser-induced process for chemical vapor deposition of polyselenocarbosilane films

Santos¹,

Díaz²,

Urbanová³

et al. 2006

Journal of Analytical and Applied Pyrolysis

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“…Thus 19F-19F coupling constants in disilacyclobutanes are relatively insensitive to methyl substitution and the observed splitti~zgs of ca. 42 Hz, 16 Hz, and 2 Hz can be assigned as geminal, trans-vicinal, and cis-vicinal couplings although not necessarily in that order.…”

Section: (D) Characterization Of Disilucycloburane Deriuatires Inclumentioning

confidence: 96%

“…4 Hz, 16 Hz, and 2 Hz. Similar spliltlngs were observed in the 29Si satellite spectra of CB-c4 and TB-c4 (the satellites give AKRX spectra due to the four non-equivalent fluorines in a singly-labelled compound).…”

Section: (D) Characterization Of Disilucycloburane Deriuatires Inclumentioning

confidence: 97%

A systematic investigation of the reaction of SiF₂ with ethylene and six methyl-substituted ethylenes. II. Characterization of polymeric products, open chain organosilicon derivatives, and 1,2-disilacyclobutanes

Reynolds¹,

Thompson²,

Wright³

1980

Can. J. Chem.

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Polymers produced by the reaction of SiF2 with olefins have been characterized by 13C and 29Si nmr spectroscopy and have been found to have a regular head-to-tail structure with isolated SiF2 groups between olefin units. Only minor proportions of Si2F4 units are formed. The open chain organosilicon derivatives formed in the reaction are, with one exception, isomers of 1,2-disilacyclohexanes. The 1,2-disilacyclobutanes are formed stereospecifically with retention of alkyl stereochemistry. 19F chemical shifts can be predicted by additive chemical shift parameters for the effect of alkyl substitution.

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Ring conformation and barrier to inversion of 1,3-disilacyclobutane from low-frequency vibrational spectra

Cited by 65 publications

References 2 publications

Determination of vibrational potential energy surfaces from Raman and infrared spectra

Determination of vibrational potential energy surfaces from Raman and infrared spectra

IR laser-induced process for chemical vapor deposition of polyselenocarbosilane films

A systematic investigation of the reaction of SiF₂ with ethylene and six methyl-substituted ethylenes. II. Characterization of polymeric products, open chain organosilicon derivatives, and 1,2-disilacyclobutanes

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Ring conformation and barrier to inversion of 1,3-disilacyclobutane from low-frequency vibrational spectra

Cited by 65 publications

References 2 publications

Determination of vibrational potential energy surfaces from Raman and infrared spectra

Determination of vibrational potential energy surfaces from Raman and infrared spectra

IR laser-induced process for chemical vapor deposition of polyselenocarbosilane films

A systematic investigation of the reaction of SiF2 with ethylene and six methyl-substituted ethylenes. II. Characterization of polymeric products, open chain organosilicon derivatives, and 1,2-disilacyclobutanes

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A systematic investigation of the reaction of SiF₂ with ethylene and six methyl-substituted ethylenes. II. Characterization of polymeric products, open chain organosilicon derivatives, and 1,2-disilacyclobutanes