CaltechAUTHORS
  A Caltech Library Service

The structure of the C4 cluster radical

Heath, J. R. and Saykally, R. J. (1991) The structure of the C4 cluster radical. Journal of Chemical Physics, 94 (4). pp. 3271-3273. ISSN 0021-9606. http://resolver.caltech.edu/CaltechAUTHORS:HEAjcp91b

[img]
Preview
PDF
See Usage Policy.

331Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:HEAjcp91b

Abstract

The first infrared spectrum of gas phase, jet-cooled C4 has been measured by high resolution diode laser absorption spectroscopy. Twelve rovibrational transitions are assigned to the nu3(sigmau) antisymmetric stretch of linear 3Sigma<sup> - </sup><sub>g</sub> C4. No evidence is observed for the bent structure of triplet C4 recently observed in a matrix study by Cheung and Graham [J. Chem. Phys. 91, 6664 (1989)]. Indeed, the measured band origin (1548.9368(21) cm^–1) and effective ground state C–C bond length [1.304 31(21)A] are consistent with several ab initio predictions of a rigid, linear, cumulenic structure for this cluster radical.


Item Type:Article
Additional Information:Copyright © 1990 American Institute of Physics (Received 9 November 1990; accepted 10 December 1990) This work was supported by grants from the NASA Innovative Science Grants Program (Grant No. NAGW.1022) and by the ONR Cluster Program (Grant No. N004-90-J-1368). J.R.H. is supported by the NASA SETI foundation. We thank Dr. Jan Martin for sending us his results prior to publication. We would also like to thank Dr. Sherwood Chang and Dr. Jill Tartar for their continued interest in this project.
Subject Keywords:CARBON; ATOMIC CLUSTERS; INFRARED SPECTRA; RADICALS; VIBRATIONAL STATES; ROTATIONAL STATES; ENERGY–LEVEL TRANSITIONS; BAND SPECTRA; MOLECULAR STRUCTURE
Record Number:CaltechAUTHORS:HEAjcp91b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:HEAjcp91b
Alternative URL:http://dx.doi.org/10.1063/1.459797
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4235
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:09 Aug 2006
Last Modified:26 Dec 2012 08:58

Repository Staff Only: item control page