The synthesis of stable merocyanine isomers 4 and 5 of the corresponding spiro[indolino-indolopyrans] is described. The structure of 4 and 5 was deduced on the basis of their lH and 13C NMR spectra. Geometrical data from X-ray structure analysis show that indolo and indolino rings in 4 are coplanar with the central diene bridge. The bond length shortening of the central single bond and the heterocyclic moieties indicate an electron delocalization over the whole molecule
Spiropyrans are photochemically active compounds exhibiting their photochromic character primarily i...
In this work, we present spiropyran derivatives (SP) involving a halogen bonded network with the add...
Department of Chemistry, University of Rajasthan, Jaipur-302 004 and Institute of Medical Sciences,...
The photochem. ring-opening of unsubstituted indolino-spiropyrans to the corresponding merocyanines ...
Five new spiro[indoline-3,3′-indolizine]s have been synthesized with high regio- and stereospecifi...
In this work, crystal structures of commercially available photochromic compounds, i.e., spiropyrans...
Novel modified spirooxazines (SOs) with additional chelating groups were synthesised and the crystal...
Photochromic reactions of 17 spiro[indolineoxazine] derivatives were investigated using nanosecond l...
In this work, we present an innovative approach to stabilise the open-ring merocyanine form of a spi...
Spiropyrans are a class of organic molecules that possess photochromic characteristics. Their isomer...
In the crystal structure of the title compound, C19H17Cl2NO, the indoline and benzopyran ring system...
Photochromic spirooxazines functionalized with poly(ethylene glycol) (PEG) and poly(dimethylsiloxane...
Photochromic reactions of four indolinospirooxazine derivatives have been studied using nanosecond l...
Spiropyrans undergo C-spiro-O bond breaking to their ring-open protonated E-merocyanine form upon pr...
Quinoline-2,4-diones reacted with 2-(2-oxo-1,2-dihydroindol-3-ylidene)malononitrile in pyridine to g...
Spiropyrans are photochemically active compounds exhibiting their photochromic character primarily i...
In this work, we present spiropyran derivatives (SP) involving a halogen bonded network with the add...
Department of Chemistry, University of Rajasthan, Jaipur-302 004 and Institute of Medical Sciences,...
The photochem. ring-opening of unsubstituted indolino-spiropyrans to the corresponding merocyanines ...
Five new spiro[indoline-3,3′-indolizine]s have been synthesized with high regio- and stereospecifi...
In this work, crystal structures of commercially available photochromic compounds, i.e., spiropyrans...
Novel modified spirooxazines (SOs) with additional chelating groups were synthesised and the crystal...
Photochromic reactions of 17 spiro[indolineoxazine] derivatives were investigated using nanosecond l...
In this work, we present an innovative approach to stabilise the open-ring merocyanine form of a spi...
Spiropyrans are a class of organic molecules that possess photochromic characteristics. Their isomer...
In the crystal structure of the title compound, C19H17Cl2NO, the indoline and benzopyran ring system...
Photochromic spirooxazines functionalized with poly(ethylene glycol) (PEG) and poly(dimethylsiloxane...
Photochromic reactions of four indolinospirooxazine derivatives have been studied using nanosecond l...
Spiropyrans undergo C-spiro-O bond breaking to their ring-open protonated E-merocyanine form upon pr...
Quinoline-2,4-diones reacted with 2-(2-oxo-1,2-dihydroindol-3-ylidene)malononitrile in pyridine to g...
Spiropyrans are photochemically active compounds exhibiting their photochromic character primarily i...
In this work, we present spiropyran derivatives (SP) involving a halogen bonded network with the add...
Department of Chemistry, University of Rajasthan, Jaipur-302 004 and Institute of Medical Sciences,...