benzoxazole/dichloromethane

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Absorption and Emission Sensitivity of 2-(2'-Hydroxyphenyl)benzoxazole to Solvents and Impurities.

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Ingia / Ingia

2-(2'-Hydroxyphenyl)benzoxazole (HBO) is known for undergoing intramolecular proton transfer in the excited state to result in the emission of its tautomer. A minor long-wavelength absorption band in the range 370-420 nm has been reported in highly polar solvents such as dimethylsulfoxide (DMSO).

Self-assembly of supramolecualr metallogelator containing 2-(2'-hydroxyphenyl) benzoxazole/Zn(II) chelate.

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Ingia / Ingia

A low molar mass organogelator 1 containing 2-(2'-hydroxyphenyl)benzoxazole (HPB) unit with long alkyl chain was synthesized by the reaction with HPB and octyl isocyanate in THF at room temperature. A new chelate-based organogelator 1-Zn(II) was prepared with the reaction of 1 and zinc(II) acetate

Synthesis of luminescent 2-(2'-hydroxyphenyl)benzoxazole (HBO) borate complexes.

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Ingia / Ingia

Complexation of boron trifluoride by a series of electron donor/acceptor substituted 2-(2'-hydroxy phenyl)benzoxazole (HBO) derivatives yields luminescent B(III) complexes with an emission wavelength ranging from 385 to 425 nm in dichloromethane or toluene. Appropriate chemical functionalization of

Direct observation of breaking of the intramolecular H-bond, and slowing down of the proton motion and tuning its mechanism in an HBO derivative.

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Ingia / Ingia

We report on spectroscopic and photodynamical behaviours of 5-amino-2-(2'-hydroxyphenyl)benzoxazole (5A-HBO) in different solutions. The dye undergoes an ultrafast ICT reaction (<50 fs) (comparable to that observed for its methylated derivative, 5A-MBO), in agreement with the results of TD-DFT

Photodynamics of a Proton-Transfer Dye in Solutions and Confined Within NaX and NaY Zeolites.

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Ingia / Ingia

We report on steady-state, picosecond and femtosecond time-resolved emission studies of 2-(2'-hydroxyphenyl)benzoxazole (HBO) in solutions and interacting with NaX and NaY zeolites. In solutions, an ultrafast (less than 150 fs) excited-state intramolecular proton-transfer (ESIPT) reaction takes

Pyridylazole chelation of oxorhenium(V) and imidorhenium(V). Rates and trends of oxygen atom transfer from Re(V)O to tertiary phosphines.

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Ingia / Ingia

The concerned azoles are 2-(2-pyridyl)benzoxazole (pbo) and 2-(2-pyridyl)benzthiazole (pbt). These react with ReOCl(3)(PPh(3))(2) in benzene, affording Re(V)OCl(3)(pbo) and Re(V)OCl(3)(pbt), which undergo facile oxygen atom transfer to PPh(2)R (R = Ph, Me) in dichloromethane solution, furnishing

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