High temperature infrared spectra of dimeric and monomeric AlBr3, AlI3 and GaCl3 in the vapour phase

✍ Scribed by C.E. Sjøgren; P. Klaeboe; E. Rytter

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 702 KB
• Volume: 40
• Category: Article
• ISSN: 1386-1425
• DOI: 10.1016/0584-8539(84)80078-1

✦ Synopsis

The i.r. spectra of aluminium bromide, aluminium iodide and gallium chloride vapours were measured in the region 50-700 cm-' with an evacuable Fourier transform spectrometer by transmission and emission techniques. Evacuable cells of nickel were employed having windows of type Ha diamond and sealed with o-rings of gold.

The dimer spectra were interpreted in terms of DzL symmetry and seven of the eight i.r. active fundamentals were assigned. The monomer spectra were interpreted in terms of Dab symmetry and the three i.r. active fundamentals were assigned.

Valence force fields were derived for the three dimers and three monomers based upon the present i.r. frequencies and on Raman data reported previously.