Accepted Manuscript Title: Structure and vibrational spectra of some 8-oxa[5]helicenes Authors: Pallavi Thul, V.P. Gupta, Soni Mishra, Poonam Tandon PII: S1386-1425(10)00682-7 DOI: doi:10.1016/j.saa.2010.12.057 Reference: SAA 8067 To appear in: Spectrochimica Acta Part A Received date: 29-8-2010 Revised date: 7-12-2010 Accepted date: 14-12-2010 Please cite this article as: P. Thul, V.P. Gupta, S. Mishra, P. Tandon, Structure and vibrational spectra of some 8-oxa[5]helicenes, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (2010), doi:10.1016/j.saa.2010.12.057 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.