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The Analysis of the Raman Spectra of Si2Cl6(l) and of Si2H6(g)

Stitt, Fred and Yost, Don M. (1937) The Analysis of the Raman Spectra of Si2Cl6(l) and of Si2H6(g). Journal of Chemical Physics, 5 (2). pp. 90-96. ISSN 0021-9606. http://resolver.caltech.edu/CaltechAUTHORS:STIjcp37

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Abstract

The Raman spectra of Si2H6(g) and of Si2Cl6(l) have been photographed. Polarization measurements of the stronger lines of Si2Cl6 have been made. From a consideration of the relations among the modes of vibration of similar molecules having different symmetry, the analysis of the observed lines is facilitated by a knowledge of the assignments of the fundamental frequencies of SiH4, HSiCl3 and BrSiCl3. A definite assignment is made for the three observed lines of Si2H6. A tentative assignment of the observed lines of Si2Cl6 is made and some evidence is presented for the existence of internal rotation in this molecule at room temperature.


Item Type:Article
Related URLs:
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http://dx.doi.org/10.1063/1.1749998DOIUNSPECIFIED
http://link.aip.org/link/?JCPSA6/5/90/1PublisherUNSPECIFIED
Additional Information:Copyright © 1937 American Institute of Physics. Received October 31, 1936. In conclusion we wish to thank Professor E.B. Wilson, Jr. and Dr. J.B. Howard for valuable criticism and discussion. Note added in proof. Cery recently Kemp and Pitzer (J. Chem. Phys. 4, 749 (1936) have presented evidence of a potential barrier of about 3150 kcal/mole between the D3d and D3h configurations in ethane. Since the Si-Si distance (2.34 A) in Si2H6 and Si2Cl6 is considerably greater than the C-C distance (1.52 A) in ethane, their conclusions would not appear to exclude the possibility of internal rotation in Si2H6 and Si2Cl6. Contribution from the Gates and Crellin Laboratories of Chemistry of the California Institute of Technology, No. 574.
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Gates and Crellin Laboratories of Chemistry574
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Deposited On:09 Sep 2008 23:21
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