Isolated CH stretching frequencies and bond properties in some organo-germanes and methyl arsines

✍ Scribed by D.C. McKean; M.W. Mackenzie; I. Torto

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 488 KB
• Volume: 38
• Category: Article
• ISSN: 1386-1425
• DOI: 10.1016/0584-8539(82)80184-0

✦ Synopsis

Infrared spectra in the CH stretching region have been obtained from partially deuterated methyl, dimethyl and trimethyl germanes and arsines, ethyl germane, MeGeH*X, where X = F, Cl, Br, I and MeGeHQ. In general, the isolated CH stretching frequencies show patterns of behaviour with respect to the (Y and p substituent effects of CHJ, GeH, and halogen groups similar to these found in the corresponding carbon compounds, although on a smaller scale. However, the trans effect of halogen is almost independent of the nature of the halcgen, and a CH bond tram to GeHl is weaker than one trans to CH+ In methyl arsine, an anomalous lone pair trans effect occurs, as previously found in methyl phosphine. CH bond lengths and dissociation energies, and average HCH angles are predicted for these compounds.