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Cited by 24 publications
(15 citation statements)
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“…It is not observed in the spectrum of aniline oligomers, but a shoulder at about 1357 cm −1 may be attributed to CN bonding,92 with the carbon atom belonging to the aromatic ring which is not simply para ‐substituted but probably 1,2,4‐trisubstituted 92. Stretching vibrations in phenazine‐like rings are also possible 65, 93, 94. The absorption band at 1300 cm −1 in the spectrum of the PANI base corresponds to the CN stretching vibrations of a secondary aromatic amine,91, 95 and a shoulder at 1230 cm −1 to the CN stretching vibration in a BNHBNHB unit (B = benzenoid ring) 91.…”
Section: Discussionmentioning
confidence: 99%
“…It is not observed in the spectrum of aniline oligomers, but a shoulder at about 1357 cm −1 may be attributed to CN bonding,92 with the carbon atom belonging to the aromatic ring which is not simply para ‐substituted but probably 1,2,4‐trisubstituted 92. Stretching vibrations in phenazine‐like rings are also possible 65, 93, 94. The absorption band at 1300 cm −1 in the spectrum of the PANI base corresponds to the CN stretching vibrations of a secondary aromatic amine,91, 95 and a shoulder at 1230 cm −1 to the CN stretching vibration in a BNHBNHB unit (B = benzenoid ring) 91.…”
Section: Discussionmentioning
confidence: 99%
“…A new sharp band of medium-to-strong intensity at 1041 cm -1 is observed in the spectrum of Ac-B, which can be attributed to the S=O stretching in sulfonate SO 3 -group substituting the aromatic ring [8][9][10]. The bands observed at 760 and 695 cm -1 in the spectrum of Ac-B (at 753 and 688 cm -1 for Ac) correspond to the C-H out-of-plane bending and the ring out-of-plane deformation of monosubstituted phenylene ring, respectively [8,32,33,35,41,50]. Increased intensity of the band at 695 cm -1 in the spectrum of Ac-B, in comparison to the weak band at the same position in the spectrum of H-B, indicates a higher content of aniline oligomers bearing monosubstituted phenyl rings as terminal units and/or more pronounced branching of the chains in the nanotubular sample prepared in acetic acid in comparison to the sample H. The spectra of the samples Su-B and W-B are nearly identical with the spectrum of sample Ac-B, all samples being prepared in mildly acidic media.…”
Section: Granular Pani Samples H and H-bmentioning
confidence: 95%
“…The spectrum of sample prepared with a higher concentration of ammonium hydroxide, Am 1-B, exhibits peaks at similar positions as Am 0.2-B, except for the 1547 cm -1 peak which is absent (Table 4). The peak at 1547 cm -1 can be attributed to the aromatic ring-stretching vibration in a substituted phenazine unit [50,56]. The characteristic band of the PANI emeraldine base at 1379 cm -1 is not present in the spectra of Am 0.2-B and Am 1-B.…”
Section: Oligomeric Microspherical Samples Am 02-b and Am 1-bmentioning
confidence: 95%
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