Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Ayse Abdullah"'
Publikováno v:
Dyes and Pigments. 121:57-72
Isomeric equilbria of dinitro-substituted indolospirobenzopyrans, possessing 3′-gem-methyl- or 3′-cyclohexyl-substitutents, have been investigated using 1H NMR spectroscopy at six temperatures, ranging from 298 K to 410 K; isomerisation processes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a08472b11aa2a3d80374040253815e8
https://doi.org/10.1016/j.dyepig.2015.04.027
https://doi.org/10.1016/j.dyepig.2015.04.027
Publikováno v:
Dyes and Pigments. 90:146-162
A series of novel 6-nitro substituted indolospirobenzopyrans are reported. The effects of substitution on their photoreversibility are investigated by: synthesising derivatives that possess sterically hindering (with regard to the spiropyran-opening
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd744b94699dd5caff521c0a0607c99a
https://doi.org/10.1016/j.dyepig.2010.10.006
https://doi.org/10.1016/j.dyepig.2010.10.006
Publikováno v:
Dyes and Pigments. 83:31-50
Several, novel, 3′-, 5- and 3-substituted indolospirobenzopyrans were prepared and their reversible thermochromic equilibria were investigated by synthesising derivatives with appropriately placed “electronically” modifying substituents in both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ba2bea4ea86909911832773f0963dc1
https://doi.org/10.1016/j.dyepig.2009.03.017
https://doi.org/10.1016/j.dyepig.2009.03.017
Publikováno v:
Dyes and Pigments. 82:226-237
The photoreversibility of several novel indolospirobenzopyrans was investigated using temperature studies – monitored using 1H NMR spectroscopy, qualitative UV studies and acid deuterolysis (trifluorodeuterioacetic acid (TFA-D)) catalysed isomerisa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5f1dcad10f222a86a4709d9892aed26
https://doi.org/10.1016/j.dyepig.2009.01.006
https://doi.org/10.1016/j.dyepig.2009.01.006
Publikováno v:
European Journal of Inorganic Chemistry. 2008:4951-4960
The photoreversible transportation of Zn 2+ ions across an interface using photochromic substituted-spirobenzopyrans has been demonstrated. The inclusion of strategically placed sterically influencing 3'-methyl-3b and 3-spirocyclohexyl-3c groupings i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a8a64a162164b0c2ae31a121c984e00
https://doi.org/10.1002/ejic.200800614
https://doi.org/10.1002/ejic.200800614
Publikováno v:
Dyes and Pigments. 76:319-326
Following our publication of the synthesis of the new 5-substituted crowned spirocyclic benzopyrans ( 3a – c ), and the fact that suitably placed substituents can be used to influence their metal-ion chelating properties [Roxburgh, CJ, Sammes, PG.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec0351d4ba15d75846a78a0c9e8ee30f
https://doi.org/10.1016/j.dyepig.2006.09.002
https://doi.org/10.1016/j.dyepig.2006.09.002
Autor:
Wills, Colin
Publikováno v:
Unmanned Combat Air Systems in Future Warfare; 2015, p153-231, 79p
Autor:
Hilary Synnott
This book argues that any strategy for dealing with Pakistan requires an understanding of the country's complex and turbulent history and of the weaknesses of its political and other institutions. It describes how, in the absence of an inherent natio
