Russian Journal of General Chemistry, том 79, издание 11, номера страниц: 2425-2434

Synthesis and spectral analysis of alkyl-substituted 3,3′- bis(dipyrrolylmethenes)

Antina E. V. 1, 2
Guseva G. B. 1
Dudina N. A. 1
V’yugin A. I. 1
Semeikin A. S. 2
2
 
Ivanovo State University of Chemical Engineering, Ivanovo, Russia
Тип документаJournal Article
Дата публикации2009-11
ИздательPleiades Publishing
Название журналаRussian Journal of General Chemistry
Квартиль по SCImagoQ3
Квартиль по Web of ScienceQ4
Импакт-фактор 20210.78
ISSN10703632, 16083350
General Chemistry
Краткое описание
Four new alkyl-substituted 3,3′-bis(dipyrrolylmethene) dihydrobromides containing from 4 to 10 alkyl substituents were synthesized. In a highly alkylated ligand of these substances one of the hydrogen atoms of the 3,3′-methylene spacer was substituted with a phenyl group. The compounds obtained were studied by IR, 1H NMR, electron absorption, and fluorescent spectroscopy. The increased alkylation degree of pyrroles and the introduction of an aryl substituent in the 3,3′-spacer causes a significant high-frequency shift of the N-H stretching vibrations in the IR spectra, an upfield shift of the NH-proton signals in 1H NMR spectra, a decrease in the auxochromic effects of protons on the aromatic system of chromophore in the composition of salts. The red shift of maximum of the strong band in electron absorption spectra and the emission spectra of compounds in DMF, DMSO, C5H5N, C6H6, and CHCl3 was established. The salts obtained are stable in benzene and chloroform, while in electron-donor solvents the irreversible processes of solvolytic dissociation of salts to free organic base and HBr take place.
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1. Antina E. V. и др. Synthesis and spectral analysis of alkyl-substituted 3,3′-bis(dipyrrolylmethenes) // Russian Journal of General Chemistry. 2009. Т. 79. № 11. С. 2425–2434.
RIS |
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TY - JOUR

DO - 10.1134/s1070363209110243

UR - http://dx.doi.org/10.1134/S1070363209110243

TI - Synthesis and spectral analysis of alkyl-substituted 3,3′-bis(dipyrrolylmethenes)

T2 - Russian Journal of General Chemistry

AU - Antina, E. V.

AU - Guseva, G. B.

AU - Dudina, N. A.

AU - V’yugin, A. I.

AU - Semeikin, A. S.

PY - 2009

DA - 2009/11

PB - Pleiades Publishing Ltd

SP - 2425-2434

IS - 11

VL - 79

SN - 1070-3632

SN - 1608-3350

ER -

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@article{Antina_2009,

doi = {10.1134/s1070363209110243},

url = {https://doi.org/10.1134%2Fs1070363209110243},

year = 2009,

month = {nov},

publisher = {Pleiades Publishing Ltd},

volume = {79},

number = {11},

pages = {2425--2434},

author = {E. V. Antina and G. B. Guseva and N. A. Dudina and A. I. V'yugin and A. S. Semeikin},

title = {Synthesis and spectral analysis of alkyl-substituted 3,3$\prime$-bis(dipyrrolylmethenes)},

journal = {Russian Journal of General Chemistry}

}

MLA
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Antina, E. V., et al. “Synthesis and Spectral Analysis of Alkyl-Substituted 3,3′-Bis(Dipyrrolylmethenes).” Russian Journal of General Chemistry, vol. 79, no. 11, Nov. 2009, pp. 2425–34. Crossref, https://doi.org/10.1134/s1070363209110243.