1971
DOI: 10.1002/recl.19710900303
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IR and NMR studies of symmetrically and unsymmetrically bonded N,N‐dialkyldithiocarbamates

Abstract: In order to find characteristic differences between symmetrically and unsymmetrically bonded N,N‐dialkyldithiocarbamates, their IR and 1H NMR spectra have been examined. The IR data firmly underline a previously reported infrared criterion which makes it possible to distinguish the two types of bonding. In the spectra of the unsymmetrical N,N‐diethyldithiocarbamates a band at 1000 cm−1 is assigned to the CS stretching mode. Although the rotation around the S2C‐NR2, bond in several dithiocarbamato complexes wi… Show more

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Cited by 46 publications
(3 citation statements)
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“…The defining bands in the spectrum (Figure 3c) occur in the 1500-1400 cm -1 region corresponding to N-C bond vibrations, from 1170-1115 cm -1 for the C=S bond and from 1030-930 cm -1 for C(=S)-S bond. 29,36,37 On comparing the spectrum of the discharged state with that of the cathode we observe diminished intensity in the N-C band and for those of the C=S bond whereas, the C-S bond is still evident on discharge. This is caused by the prevalence of the Re-examination of S 2p XPS data in the discharged state and the half-charged state which is pertinent to inhibition of the polysulfide shuttle provides evidence to support this phenomenon.…”
Section: Resultsmentioning
confidence: 81%
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“…The defining bands in the spectrum (Figure 3c) occur in the 1500-1400 cm -1 region corresponding to N-C bond vibrations, from 1170-1115 cm -1 for the C=S bond and from 1030-930 cm -1 for C(=S)-S bond. 29,36,37 On comparing the spectrum of the discharged state with that of the cathode we observe diminished intensity in the N-C band and for those of the C=S bond whereas, the C-S bond is still evident on discharge. This is caused by the prevalence of the Re-examination of S 2p XPS data in the discharged state and the half-charged state which is pertinent to inhibition of the polysulfide shuttle provides evidence to support this phenomenon.…”
Section: Resultsmentioning
confidence: 81%
“…The 0.39 eV increase between 4 and 2 aligns with plateau III occurring at 2.1 V. Additionally, it is interesting to note that 2 can alternatively exist in its mesomeric form 7 (Li2PMDTC + ) with a positive nitrogen center in the presence of excess Li + owing to the N-electron flow from nitrogen to sulfur through planar delocalized π-orbitals which will be discussed later. 29 As for PMTH, the pathway remains relatively unaltered ( see Figure S5, ESI) with the exception of higher order polysulfides formed in the penultimate step before the reduction to Li2S.…”
Section: Resultsmentioning
confidence: 96%
“…There is a positive shift of 10-30 cm 1 in comparison to the corresponding band in the free ligands which indicates that the dithiocarbamate ligand coordinates with metal through sulfur atoms. A single absorption in the range 1035-992 cm 1 is indicative of bidentate nature of the dithiocarbamate ligand which is due to equivalent C-S stretching vibrations [21][22][23][24] . A band of medium to strong intensity, observed in the region 400-426 cm 1 , may be assigned to υ(Cu-S) stretching mode (Table 3).…”
Section: Infrared Spectramentioning
confidence: 99%