High-pressure studies of rotational isomerism of triphenylmethane dye molecules

✍ Scribed by F.T. Clark; H.G. Drickamer

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 246 KB
• Volume: 115
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(85)80673-4

✦ Synopsis

Hydrostatic pressures to 120 kbar have been used to examin e rotational isomensm in the hydrogen, methyl and ethyl derivatives of tnphenylmethane dye molecules in solutron zt room temperature

Peak locations of the A and B isomers generally red-shft with increasing pressure. However, steric mteractions in the B isomer of the ethyl denvative result m a bluestift with pressure. The parti molar volume of the system is found to increase on aomenzation from the A to the B form for all three denvatives; the largest A v is for the ethyl derivative and the smallest for the hydrogen.