Results 1-20 of 412
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期刊文章
Luo, Zhouyang; Ni, Zhangqin; Zhu, Longyi; Teng, Qiwen
2010
[ABSTRACT] The electronic structures of the luminescent 1,3-dithiolanradialene derivatives were investigated using density function theory at B3LYP/6-31G(d) l...
[KEYWORDS] 1,3-dithiolanradialene; energy gap; red-shift; excited state; B3LYP/6-31G(d); MOLECULAR RECOGNITION; BINDING AFFINITIES; SPECTROSCOPY; DERIVATIVES; COMPLEXES; MACROCYCLES; STABILITIES; SYSTEM; DFT
[ABSTRACT] 近年来,人们在有机电致发光材料和器件结构方面取得了巨大的进步。然而由于蓝光材料具带隙宽的内禀属性,在发光效率、色纯度和稳定性上仍然面临巨大挑战。本文将螺旋形三萘苯共轭体系引入电致发光材料领域,它独特的螺旋形分子结构和易于化学修饰的特点有利于抑制聚集体和基激缔合物的形成。通过Si Cl4催化的环...
[KEYWORDS] 三萘苯; 环三缩合反应; 蓝光; 螺旋形; 有机电致发光二极管; Trinaphthylbenzene; Cyclotrimerization reaction; Blue-emitting; Propeller-shaped; Organic light-emitting diode; AGGREGATION-INDUCED EMISSION; DEEP-BLUE; MOLECULAR MATERIALS; DYNAMIC NMR; DERIVATIVES; TRIPHENYLAMINE; EMITTERS; DEVICES; NAPHTHYLPHENYL; DESIGN
会议论文
Chen, Wei; Lin, Zhi; Su, Jianhua; Tian, He
Symposium on Aggregation-Induced Emission - Materials and Applications
2016
[ABSTRACT] In pursuit of design and modification of photophysical properties on molecular level, N,N'-disubstituted-dihydrodibenzo[a,c]phenazines were de...
[KEYWORDS] AGGREGATION-INDUCED EMISSION; EXCITED-STATE; CHARGE-TRANSFER; ENERGY-TRANSFER; PROTON-TRANSFER; SYSTEM; LUMINESCENCE; RECOGNITION; DERIVATIVES; MOLECULES
期刊文章
Fulltext
Duan, DL; Li, ZQ; Luo, HP; Zhang, W; Chen, LR; Xu, XJ
生物有机化学与医药化学通讯
2004
[ABSTRACT] Under the guidance of bioassay, the EtOAc extract fraction of the Traditional Chinese Medicine (TCM) Galla Chinese was found to be efficient in inh...
[KEYWORDS] Galla chinese; polyphenol; inhibitor; HCVNS3 protease; TANNINS; ACID; POLYGALLOYLGLUCOSES; DERIVATIVES; PROTEINASE
期刊文章
Fulltext
Zhang, CF; Shen, XH; Gao, HC
化学物理学快报
2002
[ABSTRACT] We report herein the interaction of 2-phenyl-5-(4-diphenylyl) 1,3,4-oxadiazole (PBD) with alpha-, beta-, and gamma-cyclodextrins (CDs). It was foun...
[KEYWORDS] GAMMA-CYCLODEXTRIN; BETA-CYCLODEXTRIN; ROTAXANE; COMPLEXATION; 3H-INDOLE; FLUORESCENCE; DERIVATIVES; UREA
[ABSTRACT] Polystyrene-block-poly(5,6-benzo-2-methylene-1,3-dioxepane) (PSt-b-PBMDO),poly(methylmethacrylate)-block-PBMDO (PMMA-b-PBMDO) and poly(methyl acryl...
[KEYWORDS] atom transfer radical polymerization; ring-opening polymerization; block copolymer; cyclic ketene acetal; TRANSFER RADICAL POLYMERIZATION; RING-OPENING POLYMERIZATION; FRAGMENTATION CHAIN TRANSFER; MECHANISM; STYRENE; METHACRYLATES; DERIVATIVES; INITIATORS; ACRYLATES; RAFT
期刊文章
Fulltext
Ren, XQ; Dong, YY; Liu, JY; Huang, AJ; Liu, HW; Sun, YL; Sun, ZP
chromatographia
1999
[ABSTRACT] Separation of the enantiomers of 22 chiral basic drugs not previously separated with sulfobutyl-beta-cyclodextrin (SBE-beta-CD) as a chiral selecto...
[KEYWORDS] capillary zone electrophoresis; enantioseparation; sulfobutyl-beta-cyclodextrin; charged cyclodextrin; chiral basic drugs; ELECTROKINETIC CHROMATOGRAPHY; ENANTIOMERIC RESOLUTION; ZONE ELECTROPHORESIS; DERIVATIVES; ENANTIOSEPARATION; SELECTORS; ADDITIVES
[ABSTRACT] In this report the separation selectivity of carboxyethyl-beta-cyclodextrin (CE-beta-CD) and carboxymethyl-beta-cyclodextrin (CM-beta-CD) for some ...
[KEYWORDS] capillary electrophoresis; enantiomeric separation; carboxyethyl-beta-CD; carboxymethyl-beta-CD; CHIRAL SEPARATIONS; ELECTROKINETIC CHROMATOGRAPHY; ENANTIOMERIC RESOLUTION; BUFFER MODIFIERS; DERIVATIVES; RECOGNITION; SELECTOR
期刊文章
Fulltext
Ren, XQ; Dong, YY; Huang, AJ; Sun, YL; Sun, ZP
chromatographia
1999
[ABSTRACT] Neutral cyclodextrin (CD)-modified capillary zone electrophoresis (CZE) has been applied to the chiral separation of four basic drugs - clorprenali...
[KEYWORDS] capillary electrophoresis; chiral separation; neutral cyclodextrins; clorprenaline and other chiral drugs; PSEUDO-STATIONARY PHASES; ELECTROKINETIC CHROMATOGRAPHY; DERIVATIVES; RESOLUTION; AGENT
[ABSTRACT] The mass spectrometric behaviour of seven 1,3a,5-trisubstituted 3a,4,5,11-tetrahydro-6H-1,2,4-oxadiazolo[4,5-a] [1,5]benzodiazepines has been studi...
[KEYWORDS] DERIVATIVES
期刊文章
Fulltext
Qiao, Yan; Lin, Yiyang; Yang, Zhiyi; Chen, Huanfa; Zhang, Shaofei; Yan, Yun; Huang, Jianbin
journal of physical chemistry b
2010
[ABSTRACT] Supramolecular self-assembly can not only lead to a better understanding of biological systems, but also can enable rational building of complex an...
[KEYWORDS] MOLECULAR-WEIGHT HYDROGELATORS; PEPTIDE-AMPHIPHILE NANOFIBERS; AMINO-ACID; GELATION PROCESS; WATER; GEL; AGGREGATION; DERIVATIVES; SURFACTANT; NANOTUBES
期刊文章
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Yang, RH; Li, KA; Wang, KM; Zhao, FL; Li, N; Liu, F
analytical chemistry
2003
[ABSTRACT] In the present paper, a new cyclodextrin/porphyrin supramolecular sensitizer for zinc ion has been proposed based on the porphyrin dual fluorescenc...
[KEYWORDS] SUPRAMOLECULAR COMPLEX; OPTODE MEMBRANE; METAL-COMPLEXES; CHARGE-TRANSFER; DERIVATIVES; SENSOR; TETRAPHENYLPORPHYRIN; RECOGNITION; BINDING; PROBES
[ABSTRACT] It is the first report on the atom transfer radical ring-opening copolymerizations of unsaturated cyclic acetal: 4,7-dimethyl-2-methylene-1,3-dioxe...
[KEYWORDS] atom transfer radical polymerization; free radical ring-opening polymerization; cyclic ketene acetal; copolymerization; random copolymer; POLYMERIZATION PROCESS; METHYL-METHACRYLATE; 2-METHYLENE-4-PHENYL-1,3-DIOXOLANE; 5,6-BENZO-2-METHYLENE-1,3-DIOXEPANE; 2-METHYLENE-1,3-DIOXEPANE; DERIVATIVES; STYRENE
期刊文章
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赵岩; 敖银勇; 陈建; 宋宏涛; 黄玮; 彭静
物理化学学报
2016
[ABSTRACT] 冠醚对碱金属离子具有高选择性,在锂元素的分离富集上有着广泛的应用。本文基于密度泛函理论(DFT)研究了冠醚环大小、取代基种类、配位原子种类和数量等因素对冠醚空间结构和热力学参数的影响。结果表明,苯并冠醚系列中的苯并-15-冠-5具有更好的配位能力,取代基、配位原子对冠醚的络合能力均有一定影响,...
[KEYWORDS] 锂; 冠醚; 密度泛函理论; 分子结构; 热力学参数; Lithium; Crown ether; Density functional theory; Molecular structure; Thermodynamic parameter; LITHIUM-ION BATTERIES; ISOTOPE-SEPARATION; BENZO-15-CROWN-5 ETHERS; CRYSTAL-STRUCTURE; BINDING; SELECTIVITY; 12-CROWN-4; 18-CROWN-6; EXTRACTION; DERIVATIVES
[ABSTRACT] DBU-catalyzed condensation of ethyl diazoacetate (EDA) with aldehydes in pure water afforded corresponding beta-hydroxy alpha-diazo carbonyl compou...
[KEYWORDS] diazo compounds; Rh(II) carbene; DBU-catalyzed condensation; 1,2-aryl shift; DIAZO CARBONYL-COMPOUNDS; AROMATIC-ALDEHYDES; ALDOL REACTION; C-H; ESTERS; DIAZOACETATE; MIGRATION; DECOMPOSITION; REARRANGEMENT; DERIVATIVES
期刊文章
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Gu JiangYong; Yuan Gu; Zhu YongHong; Xu XiaoJie
中国科学b辑 化学英文版
2009
[ABSTRACT] Computational pharmacological methods were used to study the distribution of 1729 compounds contained in a Chinese medicine, Qishen Yiqi Diwan, in ...
[KEYWORDS] chemical space; drug-target space; molecular docking; computational pharmacology; C-REACTIVE PROTEIN; INHIBITORY-ACTIVITY; NADPH OXIDASES; FLAVONOIDS; CONSTITUENTS; LIPOXYGENASE; DERIVATIVES; GLYCOSIDES; LUTEOLIN; PATHWAY
期刊文章
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Li, D; Zhang, XX; Chang, WB; Wei, L; Yang, M
journal of chromatography b analytical technologies in the biomedical and life sciences
2005
[ABSTRACT] The study on the interactions between two anti-human immunodeficiency virus type 1 (anti-HIV- 1) active compounds with trans-activation response (T...
[KEYWORDS] binding constants; capillary electrophoresis; thermodynamic parameters; TAR RNA; DRUG-PROTEIN-BINDING; HUMAN SERUM-ALBUMIN; VIRUS TYPE-1 TRANSACTIVATION; ASSOCIATION CONSTANTS; LIQUID-CHROMATOGRAPHY; HIV-1; INHIBITION; TRANSCRIPTION; FLUORESCENCE; DERIVATIVES
[ABSTRACT] Novel chiral bis(oxazoline) ligands bearing dibenzo[a,c]cycloheptadiene and a dihydroxy group have been synthesized and their application in the ca...
[KEYWORDS] BISOXAZOLINE LIGANDS; ASYMMETRIC CATALYSIS; AROMATIC-ALDEHYDES; OXAZOLINE LIGANDS; CARBONYL-COMPOUNDS; AXIAL CHIRALITY; ARYL ALDEHYDES; AMINO-ALCOHOLS; TITANIUM; DERIVATIVES
期刊文章
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Mo Fanyang; Li Fei; Qiu Di; Zhang Yan; Wang Jianbo
中国化学英文版
2012
[ABSTRACT] The study toward the total synthesis of (R)-(+)-harmicine is reported in this paper. The enantioselective synthesis of pyrrolidinone, the main back...
[KEYWORDS] diastereoselective synthesis; (R)-(+)-harmicine; diazo compounds; Wolff rearrangement; photo-induced reaction; ENANTIOSELECTIVE SYNTHESIS; WOLFF REARRANGEMENT; N-TOSYLIMINES; DERIVATIVES; ALKALOIDS; ACID
期刊文章
Fulltext
Cheng, Xue-Ming; Zheng, Zhong-Bo; Li, Nan; Qin, Zhao-Hai; Fu, Bin; Wang, Neng-Dong
tetrahedron asymmetry
2008
[ABSTRACT] A series of novel C-3 symmetric tris(thiazoline) ligands were synthesized from trimethyl nitrilotriacetate and an enantiomerically pure amino alcoh...
[KEYWORDS] CHIRAL MOLECULAR RECOGNITION; ASYMMETRIC MICHAEL ADDITION; THIAZOLINE LIGANDS; LAWESSONS REAGENT; CATALYSIS; COMPLEXES; BIS(OXAZOLINE); CYCLOALKENES; DERIVATIVES; THIONATION
Results 1-20 of 412