Etude structurale d'enoxysilanes

Dedier, J.; Marchand, Annette; Forel, Marie-Thérèse; Frainnet, E.

doi:10.1016/s0022-328x(00)84836-6

Cited by 21 publications

(9 citation statements)

References 15 publications

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“…3 and 5), which correspond to the antisymmetric and the symmetric stretchings, respectively, according with their relative infrared and Raman intensities. Such results agree with the ordering predicted by the calculation and observed in related molecules having the Si(CH 3 ) 3 grouping [9].…”

Section: Vibrational Spectrasupporting

confidence: 92%

“…The deformation modes of the three CH 3 groups give rise to bands in the 1443-1411 cm Ϫ1 region (antisymmetric deformations) and the 1264-1249 cm Ϫ1 region (symmetric deformations) in (CH 3 ) 3 SiOCH 3 and (CH 3 ) 3 SiOCH CH 2 [9]. Therefore, the 1420 and 1249 cm Ϫ1 Raman bands are assigned to these modes.…”

Section: Vibrational Spectramentioning

confidence: 97%

“…The proposed assignments of Table 4 are based on the calculated wavenumbers, infrared and Raman intensities and potential energy distribution but also [9]. The assignments for some bands are commented on in what follows.…”

Section: Vibrational Spectramentioning

confidence: 99%

See 2 more Smart Citations

A quantum chemical guided interpretation of the infrared and Raman spectra of trimethylsilyl trifluoromethanesulfonate, CF 3 SO 2 OSi(CH 3 ) 3

Fernández

Altabef

Varetti

2000

Journal of Molecular Structure

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Section: Vibrational Spectrasupporting

confidence: 92%

Section: Vibrational Spectramentioning

confidence: 97%

See 1 more Smart Citation

A quantum chemical guided interpretation of the infrared and Raman spectra of trimethylsilyl trifluoromethanesulfonate, CF 3 SO 2 OSi(CH 3 ) 3

Fernández

Altabef

Varetti

2000

Journal of Molecular Structure

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“…Irradiation (λ > 280 nm) of matrix (argon) isolated silane 1b produces (vinyloxy)silane 10 as the major product (Figure ). According to IR studies by Marchand et al, , two conformers of 10 have to be considered: the s- E conformer s- E - 10 and the s- Z conformer s- Z - 10 (Scheme ). Comparison of the published spectra with those obtained from our matrix experiments clearly reveals that s- Z - 10 is obtained almost exclusively on irradiation of 1b (Table ).…”

Section: Resultsmentioning

confidence: 99%

Photochemistry and Photooxidation of Acylsilanes

Trommer

Sander

1996

Organometallics

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The photochemistry and photooxidation of three acylsilanesformyltrimethylsilane (1a), acetyltrimethylsilane (1b), and benzoyltrimethylsilane (1c)has been studied in argon and O2-doped argon matrices. UV irradiation in argon very slowly results in the decarbonylation of 1a and 1b, while 1c is stable under these conditions. The major photoproduct of 1b is trimethyl(vinyloxy)silane. In O2-doped argon matrices irradiation leads to the insertion of an O2 molecule into the Si−CO bond. Other oxidation products observed are the trimethylsilyl esters of the corresponding carboxylic acids and carbonates. These results can be rationalized if we assume that the primary photoprocesses of 1 are α-cleavage of the Si−CO bond to give radical pairs and [1,2]-silyl shifts to give siloxycarbenes.

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“…Earlier Lazarev et al [16] have found the existence of two isomers in their study of IR and Raman spectra of the liquid phase of this compound and ascribed the main isomer to the antiperiplanar form. Déd-ier et al [17] recorded the IR and Raman spectra in liquid and solid phases of the parent molecule and its deuterated derivatives (CD 3 ) 3 SiOC 2 H 3 and (CH 3 ) 3 SiOC 2 D 3 and, by the analysis of these spectra, proposed the main conformer to be an anticlinal one (without indications of the / value) and the synperiplanar isomer as the second.…”

Section: Introductionmentioning

confidence: 99%