The Experts below are selected from a list of 147 Experts worldwide ranked by ideXlab platform
Chunhui Huang - One of the best experts on this subject based on the ideXlab platform.
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a novel three coordinate Organoboron Derivative synthesis photophysical property and ion recognization
Tetrahedron Letters, 2007Co-Authors: Zhiguo Zhou, Chunhui HuangAbstract:Abstract A new push–pull type compound trans -4-dimesitylboryl-4′-(1,4,7,10-tetraoxa-13-aza-cyclopentadecyl) stilbene ( DBTS ) with aza-15-crown-5 as a donor and a three-coordinate Organoboron as an acceptor was designed and synthesized. DBTS shows intense fluorescence in a wide spectra range in different solvents. Furthermore, DBTS can recognize fluoride anions with a high selectivity for the special Lewis acid–base interaction between a trivalent boron atom and a fluoride anion. As a typical alkaline earth cations receptor, DBTS also showed spectral changes upon their addition.
Zhiguo Zhou - One of the best experts on this subject based on the ideXlab platform.
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a novel three coordinate Organoboron Derivative synthesis photophysical property and ion recognization
Tetrahedron Letters, 2007Co-Authors: Zhiguo Zhou, Chunhui HuangAbstract:Abstract A new push–pull type compound trans -4-dimesitylboryl-4′-(1,4,7,10-tetraoxa-13-aza-cyclopentadecyl) stilbene ( DBTS ) with aza-15-crown-5 as a donor and a three-coordinate Organoboron as an acceptor was designed and synthesized. DBTS shows intense fluorescence in a wide spectra range in different solvents. Furthermore, DBTS can recognize fluoride anions with a high selectivity for the special Lewis acid–base interaction between a trivalent boron atom and a fluoride anion. As a typical alkaline earth cations receptor, DBTS also showed spectral changes upon their addition.
Oracio Barbosa-garcía - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and third-order nonlinear optical studies of a novel four-coordinated Organoboron Derivative and a bidentate ligand: The effect of the N → B coordinative bond
Synthetic Metals, 2009Co-Authors: Mario Rodríguez, Rigoberto Castro-beltran, Gabriel Ramos-ortiz, José-luis Maldonado, Norberto Farfán, Oscar Domínguez, Jesús Daniel Santos Rodríguez, Rosa Santillan, Marco A. Meneses-nava, Oracio Barbosa-garcíaAbstract:Abstract The third-order nonlinear optical characterization of a new boronate ( 2 ) derived from 4-dimethylaminocinnamaldehyde was performed by third-harmonic generation (THG) at the infrared wavelength of 1550 nm. Compound 2 was prepared from the reaction of diphenylboronic acid and the bidentate ligand ( 1) and characterization was made through UV, IR, 1 H, 11 B, and 13 C NMR and X-ray diffraction. The THG experiments showed that the N → B coordinative bond in 2 enhanced the second molecular hyperpolarizability of the type γ (3) (−3ω, ω, ω, ω) by a factor of three with respect to the value exhibited by the ligand 1 . On the other hand, Z -scan studies at 800 nm (femtosecond (fs) pulses) also showed that such coordinative bond increased the nonlinear absorption (two-photon absorption (TPA)) in 2 with respect to 1 . These studies demonstrate that the N → B coordinative bond facilitates the polarization of the electronic π-system, a situation that optimizes the third-order NLO response. Results on the excited state absorptions in these compounds are also presented.
Mario Rodríguez - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and third-order nonlinear optical studies of a novel four-coordinated Organoboron Derivative and a bidentate ligand: The effect of the N → B coordinative bond
Synthetic Metals, 2009Co-Authors: Mario Rodríguez, Rigoberto Castro-beltran, Gabriel Ramos-ortiz, José-luis Maldonado, Norberto Farfán, Oscar Domínguez, Jesús Daniel Santos Rodríguez, Rosa Santillan, Marco A. Meneses-nava, Oracio Barbosa-garcíaAbstract:Abstract The third-order nonlinear optical characterization of a new boronate ( 2 ) derived from 4-dimethylaminocinnamaldehyde was performed by third-harmonic generation (THG) at the infrared wavelength of 1550 nm. Compound 2 was prepared from the reaction of diphenylboronic acid and the bidentate ligand ( 1) and characterization was made through UV, IR, 1 H, 11 B, and 13 C NMR and X-ray diffraction. The THG experiments showed that the N → B coordinative bond in 2 enhanced the second molecular hyperpolarizability of the type γ (3) (−3ω, ω, ω, ω) by a factor of three with respect to the value exhibited by the ligand 1 . On the other hand, Z -scan studies at 800 nm (femtosecond (fs) pulses) also showed that such coordinative bond increased the nonlinear absorption (two-photon absorption (TPA)) in 2 with respect to 1 . These studies demonstrate that the N → B coordinative bond facilitates the polarization of the electronic π-system, a situation that optimizes the third-order NLO response. Results on the excited state absorptions in these compounds are also presented.
Marco A. Meneses-nava - One of the best experts on this subject based on the ideXlab platform.
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Synthesis and third-order nonlinear optical studies of a novel four-coordinated Organoboron Derivative and a bidentate ligand: The effect of the N → B coordinative bond
Synthetic Metals, 2009Co-Authors: Mario Rodríguez, Rigoberto Castro-beltran, Gabriel Ramos-ortiz, José-luis Maldonado, Norberto Farfán, Oscar Domínguez, Jesús Daniel Santos Rodríguez, Rosa Santillan, Marco A. Meneses-nava, Oracio Barbosa-garcíaAbstract:Abstract The third-order nonlinear optical characterization of a new boronate ( 2 ) derived from 4-dimethylaminocinnamaldehyde was performed by third-harmonic generation (THG) at the infrared wavelength of 1550 nm. Compound 2 was prepared from the reaction of diphenylboronic acid and the bidentate ligand ( 1) and characterization was made through UV, IR, 1 H, 11 B, and 13 C NMR and X-ray diffraction. The THG experiments showed that the N → B coordinative bond in 2 enhanced the second molecular hyperpolarizability of the type γ (3) (−3ω, ω, ω, ω) by a factor of three with respect to the value exhibited by the ligand 1 . On the other hand, Z -scan studies at 800 nm (femtosecond (fs) pulses) also showed that such coordinative bond increased the nonlinear absorption (two-photon absorption (TPA)) in 2 with respect to 1 . These studies demonstrate that the N → B coordinative bond facilitates the polarization of the electronic π-system, a situation that optimizes the third-order NLO response. Results on the excited state absorptions in these compounds are also presented.