1. RRI Digital Repository
  2. 06. Soft Condensed Matter
  3. Research Papers (SCM)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2623
Full metadata record
DC FieldValueLanguage
dc.contributor.authorFernandes, J.R.-
dc.contributor.authorVenugopalan, S.-
dc.date.accessioned2007-06-06T07:51:53Z-
dc.date.available2007-06-06T07:51:53Z-
dc.date.issued1976-
dc.identifier.citationMolecular Crystals and Liquid Crystals, 1976, Vol.35, p113-134en
dc.identifier.issn1058-725X-
dc.identifier.urihttp://hdl.handle.net/2289/2623-
dc.descriptionRestricted Access.en
dc.description.abstractAn infrared study of the different phases of liquid crystalline CBOOA (N-p-cyanobenzilidene p-n-octyloxyaniline) has been made in the range 30-3100 cm-1. From a study of the -CequivN vibration in aligned samples, the absolute orientational order parameter, S, is determined in the smectic A and nematic phases. The variation of S is compared with the relative values determined earlier from diamagnetic anisotropy, NMR and birefringence studies. The farinfrared spectrum of the solid (Phase I) exhibits a mode whose intensity decreases gradually as the crystal-smectic A transition is approached. Also, a band observed at 296 cm-1 in the solid (Phase I) practically disappears in the fluid phases. These results are discussed in terms of possible pretransition effects and intramolecular changes characteristic of crystal-mesophase transitions. Dichroic effects are evident in the far-infrared absorption of the liquid crystalline phases and these are considered in relation to the influence of molecular structure on the absorption in this region.en
dc.format.extent862366 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherGordon and Breach Science Publishers.en
dc.relation.urihttp://dx.doi.org/10.1080/15421407608084315en
dc.rights1976 OPA (Overseas Publishers Association) N.V.en
dc.titleInfrared spectroscopic study of orientational order and phase transformations in Liquid crystalline CBOOAen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
1976 MCLC V35 p113.pdf
  Restricted Access		Restricted Access842.15 kBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.