Electric Literature of 5535-48-8, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 5535-48-8, Name is (Vinylsulfonyl)benzene, SMILES is O=S(C1=CC=CC=C1)(C=C)=O, belongs to benzoxazole compound. In a article, author is Vetrova, Elena V., introduce new discover of the category.
Chromogenic properties of 2-(2-carbomethoxy-3,4-dichloro-6-hydroxyphenyl)benzoxazole and its Zn (II) and Cd(II) complexes
The chromogenic properties of 2-(2-carbomethoxy-3,4-dichloro-6-hydroxyphenyl)benzoxazole (1) were studied. Solvatochromism of 1 was observed at keto-enol equilibrium due to the ground state intramolecular proton transfer (GSIPT). It was found that solvents with a good hydrogen bond acceptor (beta) ability were able to stabilise the keto form of 1. The excited-state intra molecular proton transfer (ESIPT) in molecules of 1 resulted in intense fluorescence with an anomalous Stokes shift of up to 8493 cm 1 and quantum yields of 0.08-0.19. The keto-form of 1 exhibits negative T-type photochromism with a thermally reversible photoconversion to the enol form. The complexes of ligand 1 with Zn(II) and Cd(II) were synthesised. According to X-ray structural analysis, the zinc complex is the neutral complex, which is formed by two oxazole-N and two phenol O donors of ligand 1 which crystallise in a centrosymmetric group with the zinc ion located on the inversion centres. The synthesised complexes possess effective blue fluorescence and resistance to photodegradation.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem