搜索结果: 1-15 共查到“化学 efficient”相关记录44条 . 查询时间(0.14 秒)
TSRI Chemists Find Efficient,Scalable Way to Synthesize Potential Brain-Protecting Compound
TSRI Chemists Find Efficient Brain-Protecting Compound
2015/6/18
Chemists at The Scripps Research Institute (TSRI) have invented the first practical, scalable method for synthesizing jiadifenolide, a plant-derived molecule that may have powerful brain-protecting pr...
N-butyl-pyridinium tetrafluoroborate as a highly efficient ionic liquid for removal of dibenzothiophene from organic solutions
extraction desulfurization ionic liquids dibenzothiophene
2015/3/11
In this research, 1-butyl-pyridinium tetrafluoroborate ([C4Py][BF4]-) was prepared by ion exchange method and was characterized by 1H-NMR, 13C-NMR, and FT-IR techniques. The synthesized ionic liquid w...
Efficient energy transfer in light-harvesting systems: Quantum-classical comparison, flux network, and robustness analysis
Efficient energy transfer light-harvesting systems Quantum-classical comparison flux network robustness analysis
2014/9/24
Following the calculation of optimal energy transfer in thermal environment in our first paper [J. L. Wu, F. Liu, Y. Shen, J. S. Cao, and R. J. Silbey, New J. Phys.12,105012(2010)],fullquantum dynamic...
Efficient Energy Transfer in Light-Harvesting Systems, III: The Influence of the Eighth Bacteriochlorophyll on the Dynamics and Efficiency in FMO
Efficient Energy Transfer Light-Harvesting Systems the Eighth Bacteriochlorophyll Dynamics and Efficiency FMO
2014/9/24
ThemostrecentcrystalstructureoftheFennaMatthewsOlson (FMO) protein complex indicates the presence of an additional eighth chromophore, which has been proposed to serve as alink between the chlorosom...
Theoretical Studies on Structures and Spectroscopic Properties of Highly Efficient Phosphorescent [Ru(terpy)(phen)X]+ Complexes
Mixed-ligand Ru(II) complexes Electronic structure Spectroscopic property DFT calculation UB3LYP method
2012/4/5
The ground and the lowest-lying triplet excited state geometries, electronic structures, and spectroscopic properties of three mixed-ligand Ru(II) complexes [Ru(terpy)(phen)X]+(terpy=2,2',6',20'-terpy...
Highly Efficient Synthesis of Clean Biofuels from Biomass Using FeCuZnAlK Catalyst
Biomass Biofuel Higher alcohol Liquid hydrocarbon FeCuZnAlK catalyst
2012/4/5
Highly efficient synthesis of clean biofuels using the bio-syngas obtained from biomass gasi-fication was performed over Fe1.5Cu1Zn1Al1K0.117 catalyst. The maximum biofuel yield from the bio-syngas re...
An efficient and green approach for the synthesis of vinyl aryl ethers in the presence of guanidine hydrochloride
Guanidine hydrochloride dialkyl acetylenedicarboxylates vinyl aryl ether
2010/12/29
A stereoselective procedure for vinyl aryl ether bond formation by direct coupling of dialkyl acetylenedicarboxylates and substituted phenols or naphthols under mild reaction conditions has been devel...
An efficient and green approach for the synthesis of vinyl aryl ethers in the presence of guanidine hydrochloride
Guanidine hydrochloride dialkyl acetylenedicarboxylates vinyl aryl ether O-vinylation water solvent
2010/12/20
A stereoselective procedure for vinyl aryl ether bond formation by direct coupling of dialkyl acetylenedicarboxylates and substituted phenols or naphthols under mild reaction conditions has been devel...
Bromodimethylsulfonium bromide/tetrabutylammonium nitrite: an efficient catalyst mixture for the nitration of phenols
Bromodimethylsulfonium bromide nitration nitrophenol tetrabutylammonium nitrite
2010/12/3
Nitrophenols were obtained via direct nitration of phenols with tetrabutylammonium nitrite in the presence of bromodimethylsulfonium bromide at room temperature in high yields under aprotic conditions...
Bromodimethylsulfonium Bromide/ Tetrabutylammonium Nitrite: An Efficient Catalyst Mixture for the Nitration of Phenols
Bromodimethylsulfonium bromide nitration, nitrophenol tetrabutylammonium nitrite
2010/10/19
Nitrophenols were obtained via direct nitration of phenols with tetrabutylammonium nitrite in the presence of bromodimethylsulfonium bromide at room temperature in high yields under aprotic conditions...
Efficient energy transfer in light-harvesting systems, I: optimal temperature, reorganization energy, and spatialtemporal correlations
Efficient energy transfer light-harvesting systems optimal temperature reorganization energy spatio temporal correlations
2014/9/24
Understanding the mechanisms of efficient and robust energy transfer in light-harvesting systems provides new insights for the optimal design of artificial systems. In this paper, we use the Fenna-Mat...
Sulfonic acid-functionalized silica: a remarkably efficient heterogeneous reusable catalyst for the one-pot synthesis of 1,4-dihydropyridines
1,4-Dihydropyridine b-dicarbonyl compounds solid acid SiO2-R-SO3H
2010/10/19
An efficient one-pot method for the synthesis of 1,4-dihydropyridines from b-dicarbonyl compounds, aldehyde, and ammonium acetate is reported using sulfonic acid-functionalized silica at 90 °C under s...
A simple and efficient procedure for synthesis of optically active 1,3,4-oxadiazole derivatives containing L-amino acid moieties
N-phetaloyl-L-amino acid 1,3,4-oxadiazole diacylhydrazide pyridoyl hydrazide
2010/10/19
Some new unsymmetrical and optically active 2,5-disubstituted 1,3,4-oxadiazoles 5a-j were efficiently synthesized by cyclization reaction of diacylhydrazides 4a-j. The synthesis of the title compounds...
Silica supported polyphosphoric acid (PPA-SiO2): an efficient and reusable heterogeneous catalyst for the one-pot synthesis of a -amino phosphonates
a -Amino phosphonates PPA-SiO2 heterogeneous catalyst
2010/10/19
An efficient green protocol is described for the preparation of a -amino phosphonates, employing a one-pot three-component condensation reaction between aldehydes, amines, and trialkyl phosphites in t...
An efficient one-pot synthesis of dihydropyrimidinones catalyzed by zirconium hydrogen phosphate under solvent-free conditions
Biginelli reaction solvent-free zirconium hydrogen phosphate
2010/10/18
A simple, efficient, and practical procedure for the Biginelli reaction using zirconium hydrogen phosphate [Zr(H2PO4)2] as a novel solid acid catalyst is described under solvent-free conditions in hig...