Table of Contents
Laser Chemistry
Volume 9, Issue 4-6, Pages 209-218

The Physical State of Clusters. An Infra-red Laser Study of Small Cyclopropane and Dimethylcyclopropane Clusters

School of Molecular Sciences, University of Sussex, Falmer, Brighton BN1 9QJ, UK

Received 20 May 1988

Copyright © 1988 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Infrared absorption profiles have been measured for cyclopropane and 1,1-dimethylcyclopropane clusters by monitoring the depletion of signal intensity in a mass spectrometer as a function of laser wavelength. Data have been obtained for (C3H6)n+ with n in the range 2–15, and for (C5H10)n+ with n equal to 2 and 5. A comparison between the cluster results and available infrared data on the various bulk-phase states of both cyclopropane and 1,1-dimethylcyclopropane, suggests that the clusters are liquid-like.