Abstract
Spectra of pyrazine, benzene, and osmium tetroxide have been obtained in cryogenic solutions. Data indicate that mixtures (∼ 10 ppm solute in solvent) deposited at low temperatures (∼ 100 K) yield clusters of solute molecules. The size of these clusters are estimated from light scattering data to be of the order of 103 Å. In particular, molecular aggregates appear in pyrazine/C3H8, benzene/NF3, CF4, OsO4/C3H8, NF3 but not in benzene/C3H8. The major factor governing the appearance of aggregates at low temperature is solubility. Upon warming these solutions to ∼150 K only solution spectra are observed; subsequent equilibrium cooling, of course, yields only precipitate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
