Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3909
Title: A C-13 CP/MAS NMR INVESTIGATION OF POLY(ISOTHIANAPHTHENE)
Authors: HOOGMARTENS, I
VANDERZANDE, Dirk 
MARTENS, Harry 
GELAN, Jan 
Issue Date: 1991
Publisher: ELSEVIER SCIENCE SA LAUSANNE
Source: SYNTHETIC METALS, 41(1-2). p. 513-517
Abstract: The title polymer was prepared by several different approaches. C-13 CP/MAS NMR spectra of these insoluble powders are reported. The results have been obtained by cross-polarization with proton decoupling and magic angle spinning techniques. Using selective polarization, we have been able to separate the lines of inequivalent carbons and to estimate their chemical shift. In order to obtain more information about the geometry of these polymers, we used 1,3-diphenylisothianapthene (4) and 1,3-dibenzal-thiophthalan (5) as model compounds for an aromatic (3a) and a quinoidal structure (3b) of PITN. The results suggest a quinoidal structure for this narrow bandgap polymer.
Notes: LIMBURGS UNIV CENTRUM,UNIV CAMPUS,B-3610 DIEPENBEEK,BELGIUM.
Document URI: http://hdl.handle.net/1942/3909
DOI: 10.1016/0379-6779(91)91120-Y
ISI #: A1991FU74700138
Type: Journal Contribution
Appears in Collections:Research publications

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