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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Medders, Cross Ocola, Esther J. Laane, Jaan Cooke, Joel M. |
| Description | Country affiliation: United States Author Affiliation: Ocola EJ ( Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, United States.); Medders C ( Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, United States.); Cooke JM ( Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, United States.); Laane J ( Department of Chemistry, Texas A&M University, College Station, TX 77843-3255, United States. Electronic address: laane@mail.chem.tamu.edu.) |
| Abstract | Theoretical computations have been carried out for 4-silaspiro(3,3)heptane (SSH) in order to calculate its structure and vibrational spectra. SSH was found to have two puckered four-membered rings with dihedral angles of 34.2° and a tilt angle of 9.4° between the two rings. The puckering and tilting reduce the D2d symmetry to C2. Nonetheless, the vibrational assignments can be done quite well on the basis of D2d symmetry. This is confirmed by the fact that all but the lowest E vibrations show insignificant splitting into A and B modes of C2 symmetry. However, the observed splittings of the lowest frequency modes do confirm the lower conformational symmetry. The calculated infrared and Raman spectra were compared to the experimental spectra collected for the vapor, liquid, and solid states, and the agreement is excellent. |
| ISSN | 13861425 |
| Volume Number | 130 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-09-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Heptanes Chemistry Spectrophotometry, Infrared Spectrum Analysis, Raman Spiro Compounds Models, Molecular Molecular Conformation Vibration Journal Article Research Support, Non-u.s. Gov't Research Support, U.s. Gov't, Non-p.h.s. Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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