Solid state NMR characterization of polyrrole : the nature of the dopant in PF6− doped films Forsyth, Maria and Smith, Mark E. 1993, Solid state NMR characterization of polyrrole : the nature of the dopant in PF6− doped films, Synthetic metals, vol. 55, no. 1, pp. 714-719, doi: 10.1016/0379-6779(93)91017-V. Attached Files Name Description MIMEType Size Downloads Title Solid state NMR characterization of polyrrole : the nature of the dopant in PF6− doped films Formatted title Solid state NMR characterization of polyrrole : the nature of the dopant in PF6− doped films Author(s) Forsyth, Maria orcid.org/0000-0002-4273-8105 Smith, Mark E. Journal name Synthetic metals Volume number 55 Issue number 1 Start page 714 End page 719 Publisher Elsevier S.A. Place of publication Basel, Switzerland Publication date 1993-03-15 ISSN 0379-6779 Keyword(s) solid state NMR polypyrrole hexafluorophosphate Summary 31P and 19F solid state NMR have been used to study the nature of the PF6− anion in polypyrrole films at various levels of oxidation. It appears that the symmetric PF6− unit remains undistorted and unchanged throughout, suggesting that it is predominantly acting only as a counterion and not as a true ‘dopant’, since any distortion in the phosphorous environments would result at the very least in chemical shift anisotropy of the 31P nucleus. A second set of phosphorous and fluorine resonances, which are consistent with a difluoride phosphorous compound, appeared in the films. Upon electrochemical reduction of the polymer, the undistorted PF6− anion leaves the film whereas the second phosphorous species remains. Re-oxidation of the polymer reverses the processes observed during reduction. Language eng DOI 10.1016/0379-6779(93)91017-V Field of Research 039999 Chemical Sciences not elsewhere classified Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©1993, Elsevier Sequoia Persistent URL http://hdl.handle.net/10536/DRO/DU:30030142 Document type: Journal Article Collections: Institute for Technology Research and Innovation GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 10 Sep 2010, 15:09:09 EST Thu, 23 Sep 2010, 12:01:16 EST Thu, 23 Sep 2010, 12:02:49 EST Filtered Full Citation counts:   Cited 6 times in TR Web of Science Cited 8 times in Scopus Search Google Scholar Access Statistics: 981 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 10 Sep 2010, 15:09:09 EST