Number of the records: 1
Application of spectroscopic and theoretical methods in the studies of photoisomerization and photophysical properties of the push-pull styryl-benzimidazole dyes
SYS 0237021 LBL ---naa--22--------450- 005 20240612125624.0 014 $a 000367951700012 $2 CCC 014 $a 000367951700012 $2 WOS CC. SCIE 014 $a 000367951700012 $2 WOS CC. IC 014 $a 2-s2.0-84954127632 $2 SCOPUS 014 $a 26692103 $2 PubMed 014 $a BCI201600185299 $2 BIOSIS Citation Index 014 $a 26692103 $2 MEDLINE 017 70
$a 10.1039/c5pp00361j $2 DOI 100 $a 20161206 2016 m y slo 03 ba 101 0-
$a eng 102 $a GB 200 1-
$a Application of spectroscopic and theoretical methods in the studies of photoisomerization and photophysical properties of the push-pull styryl-benzimidazole dyes $f B. Jędrzejewska, B. Ośmiałowski, R. Zaleśny 330 $a The synthesis and spectroscopic properties of a series of substituted 1,3-dimethyl-2-aminostyrylbenzimid-azolium iodides are described and discussed. The products were identified by NMR, IR and UV-Vis spectroscopy and elemental analysis. Their electronic absorption and fluorescence band positions are affected by the character of the substituent and by the solvent polarity. The fluorescence decay of the dyes shows two lifetimes interpreted in terms of emission from two forms of the dye in the excited state. Moreover, the photochemical trans> cis isomerization is reported for these compounds. It occurs from the first excited singlet state of the trans isomer to the cis isomer following a trans-S-0> S-1 excitation. The electron-donating character of the substituent in a styrene moiety is one of the crucial factors influencing the photoisomerization process. The structure of the cis isomer was established by H-1 and N-15 NMR. Experimental studies are supported by the results of quantum chemical calculations. 463 -1
$1 001 umb_un_cat*0295240 $1 011 $a 1474-905X $1 011 $a 1474-9092 $1 200 1 $a Photochemical & Photobiological Sciences $v Vol. 15, no. 1 (2016), pp. 117-128 $1 210 $a Cham $c Springer Nature Switzerland AG $d 2016 606 0-
$3 umb_un_auth*0035845 $a chémia $X chemistry 606 0-
$3 umb_un_auth*0036453 $a emisie $X emissions 606 0-
$3 umb_un_auth*0256276 $a izomerácie 606 0-
$3 umb_un_auth*0090517 $a emissions 606 0-
$3 umb_un_auth*0302896 $a izomerizácia $X isomerization 615 $n 54 $a Chémia 675 $a 54 700 -1
$3 umb_un_auth*0256102 $a Jędrzejewska $b Beata $9 40 $4 070 701 -1
$3 umb_un_auth*0256108 $a Ośmiałowski $b Borys $4 070 $9 30 701 -1
$3 umb_un_auth*0248131 $a Zaleśny $b Robert $p UMBFP08 $4 070 $9 30 $f 1977- $T Katedra chémie 801 -0
$a SK $b BB301 $g AACR2 $9 unimarc sk T85 $x existuji fulltexy
Number of the records: 1