Spiropyran modified micro-fluidic chip channels as photonically controlled self-indicating system for metal ion accumulation and release [PDF]
, 2009 In this paper, we show how through integrating the beneficial characteristics of micro-fluidic devices and spiropyrans dyes, a simple and very innovative chip configured as an on-line photonically controlled self-indicating system for metal ion ...
Attia +51 more
core +1 more source
Physicochemical study of spiropyran-terthiophene derivatives: photochemistry and thermodynamics [PDF]
, 2012 The photochemistry and thermodynamics of two terthiophene (TTh) derivatives bearing benzospiropyran (BSP) moieties, 1-(3,3’’-dimethylindoline-6’-nitrobenzospiropyranyl)-2-ethyl 4,4’’-didecyloxy-2,2’:5’,2’’-terthiophene-3’-acetate (BSP-2) and 1-(3,3 ...
Benito-Lopez +47 more
core +3 more sources
One-pot three-component synthesis and photophysical characteristics of novel triene merocyanines
Beilstein Journal of Organic Chemistry, 2014 Novel triene merocyanines, i.e. 1-styryleth-2-enylidene and 4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylideneindolones are obtained in good to excellent yields in a consecutive three-component insertion Sonogashira coupling–addition sequence.
Christian Muschelknautz +3 more
doaj +1 more source
Glucose sensor based on the LUQUEN-principle [PDF]
, 1992 A new type of glucose sensor based on luminescence quenching (LUQUEN) is proposed. In this LUQUEN principle the concentration induced quenching is enlarged by radiationless (excited-state) energy transfer within the luminescent material.
Bovenkamp, H.J. van de +6 more
core +4 more sources
Rigidified malononitrile- and ketone-merocyanines in rigid environments
Macedonian Journal of Chemistry and Chemical Engineering, 2015 Two merocyanine dyes containing a malononitrile or a ketone functional group as electron-acceptors, and a piperidine group as electron-donor were synthetized and crystallized as pigments.
Tomce Runcevski +4 more
doaj +1 more source
Investigating nano-structuring within imidazolium ionic liquids: A thermodynamic study using photochromic molecular probes [PDF]
, 2009 Following previous studies involving the thermal relaxation of spirocyclic compounds we extended our studies to investigate the formation of nano-structured domains in ionic liquids (ILs).
Byrne, Robert +3 more
core +1 more source
Schizophrenic molecules and materials with multiple personalities - how materials science could revolutionise how we do chemical sensing [PDF]
, 2009 Molecular photoswitches like spiropyrans derivatives offer exciting possibilities for the development of analytical platforms incorporating photo-responsive materials for functions such as light-activated guest uptake and release and optical reporting on
Benito-Lopez, Fernando +4 more
core +1 more source
Structure et propriétés chimiques de la «base méthylène» dérivée du 2-méthyl benzothiazole
CHIMIA, 1961 Depending on the procedures used, the quaternary salts of 2-alkyl benzothiazole are likely to lead to acetylated amino thiophenols by hydrolytic opening of the ring, or to 2-alkylidene bases by loss of the ion and a proton attached to the alpha carbon ...
G. Larive, R. Dennilauler
doaj +1 more source
Iminium Salts of ω-Dithiafulvenylpolyenals: An Easy Entry to the Corresponding Aldehydes and Doubly Proaromatic Nonlinear Optic-phores [PDF]
, 2008 A short, high-yielding route to ω-dithiafulvenylpolyenals (1) via the corresponding iminium salts (2) and starting from trimethyl-1,3-dithiolium tetrafluoroborate is reported.
B. Villacampa +11 more
core +2 more sources
Photo- and solvatochromic properties of nitrobenzospiropyran in ionic liquids containing the [NTf2]- anion [PDF]
, 2008 The photo-, thermo- and solvatochromic properties of 2,3-dihydro-10,30,30-trimethyl-6-nitrospiro- [1-benzopyran-2,20-1H-indole] (BSP-NO2) were studied in ILs containing the anion [NTf2]- by UV-Vis absorption spectroscopy, ab initio molecular orbital ...
Byrne, Robert +5 more
core +1 more source