Volume 25: Optical Methods of Investigating Solid Bodies

The principal results of the work are as follows: 1. A simplified technique was devised for obtaining Raman spectra of powders. 2. The Raman and infrared absorption spectra of the following oxides were investigated: AsP3' SbP3' As 0 SbP5. Te02. Ge02 (two forms) in the crystalline state, and ASP3' Ge02' Te0 in the glassy state. 2 5 2 3. The vibrational spectra of the crystalline and glassy forms of the oxides ASP3' Ge02' Te02 are simi lar in many main respects, indicating a similarity of their structural units which determine the vibrational spec tra of these substances. 4. By a study of the vibrational spectrum it was shown that arsenious anhydride has a molecular structure and consists of As0 molecules having symmetry of the point group Td' The force constants and vibration fre 4 6 quencies of the As 0 molecule were calculated. and the vibrational spectrum of arsenious anhydride was re 4 6 liably interpreted with the aid of these results. 5. A similar result was obtained for antimonous anhydride. consisting of Sb0 molecule.s with symmetry 4 6 ofthe point group Td. The force constants for this molecule were found and the vibrational spectrum was calculated.

Product details

• Assisted by: D V Skobel tsyn (Editor), V Skobel tsyn (Editor), D. V. Skobel Tsyn (Editor)
• Publisher: Springer, Berlin
• Content: Book
• Product form: Paperback / Softback
• Publication date: 22.04.2014
• Subject: Natural sciences, medicine, IT, technology > Physics, astronomy > Electricity, magnetism, optics
• EAN: 9781468472080
• ISBN: 978-1-4684-7208-0
• Pages: 188
• Illustrations: VI, 188 p. 7 illus.
• Dimensions (packing): 21 x 27.9 cm
• Weight (packing): 495 g
• Series: The Lebedev Physics Institute Series > .25; The Lebedev Physics Institute Series > 25
• Subjects: Crystal, Vibration, Solid, Structure, Glass, Absorption, units, Polarization, molecule, oxides, Exciton, infrared