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Synthesis and Crystal Structure of Lanthanum Nitrate with Methyl-2-pyridyl Ketone Benzoyl Hydrazone 被引量:5
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作者 TAIXi-shi YINXian-hong +2 位作者 LIUDe-bo TANMin-yu YUKai-bei 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2003年第4期434-436,共3页
A novel La complex with methyl-2-pyridyl ketone benzoyl hydrazone has been synthesized and determined by single crystal X-ray diffraction. The crystal is monoclinic with space group C2/c, a =1 7081(3) nm, b =1 ... A novel La complex with methyl-2-pyridyl ketone benzoyl hydrazone has been synthesized and determined by single crystal X-ray diffraction. The crystal is monoclinic with space group C2/c, a =1 7081(3) nm, b =1 5660(3) nm, c =1 3512(3) nm, α=90 00°, β=94 39(1)°, γ=90 00°, V =3 6037(12) nm 3, Z =4 . The complex is a ten-coordinated one with a lanthanum ion surrounded by a N 4O 6 set. The crystal structure is stabilized by hydrogen bonds between water molecules and NO - 3 anions. 展开更多
关键词 SYNTHESIS Lanthanum complex methyl-2-pyridyl ketone benzoyl hydrazone Crystal structure
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Meclizine Chloridrate and Methyl-β-Cyclodextrin Associated with Monophosphoester Synthetic Phosphoethanolamine Modulating Proliferative Potential in Triple-Negative Breast Cancer Cells 被引量:2
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作者 Manuela Garcia Laveli da Silva Luciana Bastianelli Knop Durvanei Augusto Maria 《Journal of Pharmacy and Pharmacology》 2019年第7期408-420,共13页
Synthetic phosphoethanolamine(Pho-s)is a monophosphoester ester with anti-inflammatory and pro-apoptotic properties.Meclizine chloridrate(MC)is a histamine H1 receptor blocker that is also able to inhibit cellular res... Synthetic phosphoethanolamine(Pho-s)is a monophosphoester ester with anti-inflammatory and pro-apoptotic properties.Meclizine chloridrate(MC)is a histamine H1 receptor blocker that is also able to inhibit cellular respiration.However,MC does not inhibit cellular respiration in isolated mitochondria such as antimycin and rotenone.Methyl-β-cyclodextrin(MβCD)belongs to theβ-cyclodextrin family,which is capable of removing cholesterol from the plasma membrane.The aim of this study was to evaluate the proliferative effects of meclizine chloridrate and methyl-β-cyclodextrin compounds associated with synthetic phosphoethanolamine in a triple-negative human breast tumor line,MDA-MB-231 Cell viability of the tumor line and normal cells FN1 was evaluated by MTT colorimetric test;the production of free radicals was determined by lipoperoxidation(LPO)test;and the percentage of cell cycle phases and proliferative index was evaluated by flow cytometry.Cell viability demonstrated a significant decrease with the treatments of MβCD,MC and Pho-s associated with MC.The production of free radicals decreases significantly in all treatments.In addition,a significant increase of DNA fragment and decrease in G0/G1 cell cycle phase were observed in cellular percentage with concentrations of 20 and 30 mM of Pho-s in association with MC and MβCD,respectively. 展开更多
关键词 Human TRIPLE-NEGATIVE breast cancer MDA-MB-231 SYNTHETIC PHOSPHOETHANOLAMINE MECLIZINE chloridrate methyl-β-cyclodextrin cell cycle
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Auxiliary Ligands Mediated One- and Two-dimensional Cd(Ⅱ) Coordination Polymers Incorporating Methyl-3- hydroxy-5-carboxy-2-Thiophenecarboxylate Ligand 被引量:1
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作者 李召好 李振元 +2 位作者 陈云 路远远 赵邦屯 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第4期617-623,共7页
Two N-donor ligands mediated Cd(Ⅱ) coordination polymers, namely,[Cd(L)(dmpz)2]n (1) and {[Cd(L)(atr)05(H20)](H2O)}n (2) (H2L = methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate, dmpz = 3,5-dimethy... Two N-donor ligands mediated Cd(Ⅱ) coordination polymers, namely,[Cd(L)(dmpz)2]n (1) and {[Cd(L)(atr)05(H20)](H2O)}n (2) (H2L = methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate, dmpz = 3,5-dimethylpyrazole, and atr= 4-amino-l,2,4-triazole), havebeen produced. Their structures were characterized by single-crystal X-ray diffraction analysis,elemental analyses and infrared spectra. Compound 1 possesses a one-dimensional (1D) chainstructure and is finally extended into a three-dimensional (3D) supramolecular architecturethough hydrogen bonding interactions. Compound 2 features a two-dimensional (2D) networkwith 4-connected sql topology based on dinuclear Cd(Ⅱ) clusters as nodes, which is alsoassembled into a 3D supramolecular architecture through hydrogen bonding interactions.Furthermore, compounds 1 and 2 exhibit high thermal stabilities and intense fluorescent emissionin the solid, and can be explored as potential luminescent materials. 展开更多
关键词 coordination polymer methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate 3 5-dimethylpyrazole 4-amino-1 2 4-triazole photolumineseent properties
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SYNTHESES OF N- METHYL-^(14)C BENZYL AMINE AND N- METHYL-^(14)C BENZYL NITROSAMINE
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作者 郭子丽 朱京荣 +2 位作者 魏紫萍 周瑞菊 张雨龙 《Nuclear Science and Techniques》 SCIE CAS CSCD 1990年第3期174-178,共5页
The syntheses of N-Methyl-14C benzyl amine and N-Methyl-14C benzyl nitrosamine are reported. Specific activities were approximately 920 MBq/mmol. Chemical and radiochemical purity checked by HPLC were more than 95%.
关键词 N- methyl- 14C BENZYL AMINE N- methyl- 14 BENZYL NITROSAMINE Trifluoroacetamide 14C - LABELLED compounds
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An Efficient Process for Preparing 4-Methyl-2-phenyl Piperazine Hydrochloride and its Derivatives
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作者 Bai Shu GUO Yu She YANG Ru Yun JI 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第4期365-367,共3页
An improved method for preparation of 4-methyl-2-phenyl piperazine and its derivatives with higher yield and inexpensive reagents was developed, the products were characterized by 1H-NMR and MS.
关键词 methyl-2-phenyl piperazine mirtazapine intermediate.
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Synthesis and Transesterification of the Complexes of Methyl 2-Methyl-3-trichlorostannylpropoinate with Benzylmethylsulfoxide
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作者 Lai Jin TIAN Zhi Cai SHANG +2 位作者 Qing Sen YU Wen Na ZHAO Bing ZHANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2002年第12期1168-1169,共2页
The title complex, Cl3SnCH2CH(CH3)CO2CH3L (1), was synthesized by the reaction of methyl 2-methyl-3-trichlorostannylpropionate with benzylmethylsulfoxide (L) in solid state at room temperature and readily underwent tr... The title complex, Cl3SnCH2CH(CH3)CO2CH3L (1), was synthesized by the reaction of methyl 2-methyl-3-trichlorostannylpropionate with benzylmethylsulfoxide (L) in solid state at room temperature and readily underwent transesterification into the corresponding analogues Cl3SnCH2CH(CH3)CO2RL when reacted with an alcohol ROH. The structural features of these compounds were described, and the possible mechanism of transesterification was suggested. 展开更多
关键词 methyl-3-trichlorostannylpropionate complexes solid state reaction crystal structure transesterification.
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A Hydrogen-bonded Tubular Structure of Zinc(Ⅱ) and Methyl-3-pyridylcarbamate
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作者 夏娅娜 李少光 +1 位作者 龙泽荣 吴彪 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2010年第6期875-878,共4页
A zinc(Ⅱ) compound [ZnCl2(mpcm)2](1,mpcm = methyl-3-pyridylcarbamate) was prepared by solvothermal reaction and characterized by elemental analysis,IR spectroscopy,TGA and single-crystal X-ray diffraction.The c... A zinc(Ⅱ) compound [ZnCl2(mpcm)2](1,mpcm = methyl-3-pyridylcarbamate) was prepared by solvothermal reaction and characterized by elemental analysis,IR spectroscopy,TGA and single-crystal X-ray diffraction.The crystal is of monoclinic system,space group P21/n,C14H16ZnCl2N4O4,Mr = 440.58,a = 8.7893(7),b = 24.978(2),c = 9.2510(8),β = 109.318(1)°,V = 1916.6(3)3,Z = 4,θ = 1.63~25.20°,Dc = 1.527 g/cm3,μ = 1.585 mm-1,F(000) = 896,the final R = 0.0255 and wR = 0.0654 for 3080 observed reflections with Ⅰ 〉 2σ(Ⅰ).The zinc atom is four-coordinated by the pyridyl groups of two mpcm ligands and two chloride ions with a tetrahedral geometry.Two [ZnCl2(mpcm)2] subunits are held together by a pair of hydrogen bonds,forming a 32-membered macrocyclic dimer,which is further extended into a 3D tubular structure via hydrogen bonding. 展开更多
关键词 ZINC methyl-3-pyridylcarbamate hydrogen-bonded tubular structure
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Synthesis of Methyl-(γ-chloropropyl)dichlorosilane Catalyzed by Silica-supported Karstedt-type Catalyst
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作者 Zheng Ping FANG Hai Tang YANG +1 位作者 Qian Jiang MIAO Guo Ping CAI 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第9期1155-1158,共4页
Methyl-(γ-chloropropyl)dichlorosilane was synthesized under the catalysis of a silicasupported Karstedt-type catalyst. By orthogonal experimental design method, the optimum reaction parameters such as reactants rat... Methyl-(γ-chloropropyl)dichlorosilane was synthesized under the catalysis of a silicasupported Karstedt-type catalyst. By orthogonal experimental design method, the optimum reaction parameters such as reactants ratio, reaction temperature and time, and the dosage of catalyst, were determined. At the optimum reaction condition the product yield reached 78.42%, which is higher than that reported in the literatures. 展开更多
关键词 methyl-(γ-chloropropyl)dichlorosilane silica-supported Karstedt-type catalyst hydrosilylation synthesis.
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Synthesis of Novel 1-(2'-Alkylthioethoxy)methyl-5-flourouracil and Its Oxidation Products
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《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 1999年第S1期32-32,共1页
关键词 Alkylthioethoxy)methyl-5-flourouracil and Its Oxidation Products Synthesis of Novel 1
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Spectrofluorimetric Determination of Trace Terbium(III) Using 2,6-Bis-(1'-phenyl-3'-methyl-5'-oxopyrazole-4')pyridinediacyl and N-Cetylpyridium Bromide
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作者 Jin Zhang GAO Qi Liang DENG +3 位作者 Wu YANG Jing Guo HOU Bac Wei ZHAO Jing Wan KANG (Department of Chemistry. Northwest Normal University, Lanzhou 730070) 《Chinese Chemical Letters》 SCIE CAS CSCD 2000年第5期431-434,共4页
A new spectrofluorimetric method for determination of trace terbium based on its reaction with 2.6-his-(1'-phenyl-3'-methyl-5'- pyridinediacyl (H_2PMBPP) and N- cetylpyridium bromide (CPB). at an apparent ... A new spectrofluorimetric method for determination of trace terbium based on its reaction with 2.6-his-(1'-phenyl-3'-methyl-5'- pyridinediacyl (H_2PMBPP) and N- cetylpyridium bromide (CPB). at an apparent pH=5.0 provided by a hexamethylenetetramine (5% w/w)-hydrochloric acid buffer,is propesed. The calibration graph is linear in the ran ge from 展开更多
关键词 SPECTROFLUORIMETRIC terbium determination FLUORIMETRY 2 6-his-(1'-phcnyl-3'- methyl-5'-oxopyrazole-4') pyridinediacyl.
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Preparation and Catalytic Activity of PW_(12)/PAn Material in Synthesis of 2-Methyl-2-Ethyl Acetoacetate-1,3-Dioxolane
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作者 YANG Shui-jin YU Xie-qing +1 位作者 LU Bao-lan SUN Ju-tang 《合成化学》 CAS CSCD 2004年第z1期47-47,共1页
关键词 methyl-2-ethyl acetoacetate-1 3-dioxolane PW12/PAn ketalation catalysis.
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Studies on Semisynthesis and Anibacterial Activity of 7 β-(5-Methyl-1-Aryl-1H-1,2,3-Triazoly-4-Carboxamido) Cephalosporins
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作者 Zi Yi ZHANG Yu Xiang LIANG(National Laboratory of Applied Organic Chemistry, Department of Chemistry,Lanzhou University, Lanzhou 73000)Zuo Wu GUAN(Institute of Applied Pharmacy, Beijing Medical University, Beijing 100083) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第4期295-298,共4页
Nine new derivatives of 7 β - (5- methyl- 1- aryl- 1H-1, 2, 3- triazoly- 4- carboxamido) cephalosporins were synthesized by acylction of 7 β -amino group of 7-ACA, 7-ADCA and 7-ACT with 5 -methsyl- 1 -aryl- 1 H- 1,2... Nine new derivatives of 7 β - (5- methyl- 1- aryl- 1H-1, 2, 3- triazoly- 4- carboxamido) cephalosporins were synthesized by acylction of 7 β -amino group of 7-ACA, 7-ADCA and 7-ACT with 5 -methsyl- 1 -aryl- 1 H- 1,2,3-triazoly-4-formyl chloride. The structure of the compounds were confirmed by elementray analysis IR, HNMR and FAB-MS. Some of them showed significant antibacterial activity 展开更多
关键词 Activity MS FAB Studies on Semisynthesis and Anibacterial Activity of 7 CEPHALOSPORINS methyl-1-Aryl-1H-1 2 3-Triazoly-4-Carboxamido
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Synthesis Characterization Non-isothermal Kinetics of the Thermal Decomposition and Redox Properties Derived from Copper(Ⅱ) Binuclear Coordination Compound of 1,4-Bis-(1'-Phenyl-3'-Methyl-5'-Pyrazolone-4')-1,4-Butanedione
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作者 Cun SHAN Dian Zen JIA Xi XIA(Department of Chemistry,, Xinjiang University, Urumqi,830046). 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第5期455-458,共4页
The paper reports the synthetic procedure and character of Copper(II) binuclearcoordination compound of 1,4-bis-(1'-phenyl-3'-methyl-5'-pyrazolone Thenon-isothermal kinetics of thermal decomposition of the... The paper reports the synthetic procedure and character of Copper(II) binuclearcoordination compound of 1,4-bis-(1'-phenyl-3'-methyl-5'-pyrazolone Thenon-isothermal kinetics of thermal decomposition of the complex has been stUdied from the TG-DTGcurves by means of the Achar et al. and Coats-Redfern methods,the most probab1e kinetic equation canbe expressed as dofdtrAe -E / RT * l /(2Q).The corresponding kinetic compensation effect expressions arefound to be lnuA=0. 1794E+0. 1689.The non-isothermal thermal decomposition process of the complex isone-dimensional diffusion.But electrochemical studies of the complex(Cu2L'2)from cyclic voltamrnetriccurves by means of powder microelectrodes technique'',shows one two-electron irreversible process. 展开更多
关键词 methyl-5 Phenyl-3 Pyrazolone-4 Synthesis Characterization Non-isothermal Kinetics of the Thermal Decomposition and Redox Properties Derived from Copper Binuclear Coordination Compound of 1 4-Bis
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千层塔中的一个新黄酮苷(英文) 被引量:5
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作者 杨亚滨 杨雪琼 +2 位作者 徐艳群 太志刚 丁中涛 《中国天然药物》 SCIE CAS CSCD 2008年第6期408-410,共3页
目的:研究千层塔(Huperzia serrata)化学成分。方法:采用柱层析方法分离纯化,根据理化性质和光谱数据鉴定化合物的结构。结果:分离鉴定了1个黄酮苷为5,5'-dihydroxy-2',4'–dimethoxy-flavone-7-O-β-D-(6"-O-Z-p-coum... 目的:研究千层塔(Huperzia serrata)化学成分。方法:采用柱层析方法分离纯化,根据理化性质和光谱数据鉴定化合物的结构。结果:分离鉴定了1个黄酮苷为5,5'-dihydroxy-2',4'–dimethoxy-flavone-7-O-β-D-(6"-O-Z-p-coumaroyl)-glu-copyranoside(1)。结论:化合物1为新化合物。 展开更多
关键词 千层塔 黄酮苷 5 5'-dihydroxy-2′ 4′–dimethoxy-flavone-7-O-β-D-(6″-O-Z--coumaroyl)-glucopyranoside
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Glycosides from Erigeron breviscapus 被引量:7
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作者 陈斌 李伯刚 张国林 《Acta Botanica Sinica》 CSCD 2002年第3期344-348,共5页
A new glycoside, gamma-pyranone-3-O-beta-D-[6'-(4'-hydroxy-3',5'-dimethyoxybenzoyl)]-glucopyranoside (erigeside D, 2), together with nine known compounds, viz., erigeside I (1), erigeside A (3), eriges... A new glycoside, gamma-pyranone-3-O-beta-D-[6'-(4'-hydroxy-3',5'-dimethyoxybenzoyl)]-glucopyranoside (erigeside D, 2), together with nine known compounds, viz., erigeside I (1), erigeside A (3), erigeside B (4), erigeside II (5), scopolin (6), icariside B-2 (7), blumenol C glucoside (8), (+)-syringaresinol O-beta-D-glucopyranoside (9) and scutellarein-7-O-beta-D-glucuronide methyl ester (10), was isolated from Erigeron breviscapus (Vant.) Hand.-Mazz. Their structures were established on the basis of spectral evidence. According to the beta-glucopyranosyl moiety in 7, the absolute configuration of 7 was determined by X-ray crystallographic analysis. Compounds 7, 8 and 9 were isolated for the first time from this genus, an compound 6 was first obtained from this plant. 展开更多
关键词 COMPOSITAE Erigeron breviscapus gamma-pyranone-3-O-beta-D-[6 '-(4 ''-hydroxy-3 '' 5 ''-dimethyoxybenzoyl)]-glucopyranoside (erigeside D)
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Chemical Constituents of Rheum tanguticum Maxim.ex Balf. 被引量:2
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作者 金伟 格日立 +3 位作者 黄志勤 魏全嘉 包天佑 屠鹏飞 《Journal of Chinese Pharmaceutical Sciences》 CAS 2006年第4期206-210,共5页
Aim To study the chemical constituents of the root and rhizome of Rheum tanguticum Maxim. ex Balf. Methods Chemical constituents were isolated and purified by many chromatographic methods, and their structures were el... Aim To study the chemical constituents of the root and rhizome of Rheum tanguticum Maxim. ex Balf. Methods Chemical constituents were isolated and purified by many chromatographic methods, and their structures were elucidated by MS, NMR, and others. Results Twenty compounds were isolated and their structures were identified as β-sitosterol, chrysophanol, aloe-emodin, physcion, rhein, emodin, etc. Conclusion Among these compounds, 4-(4′-hydroxyphenyl)-2-butanone, 4-(4′-hydroxyphenyl)-2-butanone-4′-O-β-D-(2″-... 展开更多
关键词 Rheum tanguticum Maxim ex Balf. 4-(4′-hydroxyphenyl)-2-butanone 4-(4′-hydroxyphenyl)-2-butanone-4′-O-β-D-(2″-O-cinnamoyl-6″-O-galloyl)-glucopyranoside 4-(4′-hydroxyphenyl)-2-butanone-4′-O-β-D-(2″-O-galloyl-6″-O-p-coumaroyl)-glucopyranoside.
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冰糖草化学成分的分离与鉴定 被引量:2
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作者 刘辰鹏 孙万莹 +5 位作者 王瑞琪 黄兹宝 曹明玉 张小坡 董琳 李国玉 《沈阳药科大学学报》 CAS CSCD 北大核心 2022年第7期780-785,共6页
目的研究冰糖草(Scoparia dulcis L.)全草乙醇提取物的正丁醇萃取部位的化学成分。方法运用硅胶、Sephadex LH-20和半制备HPLC等各种方法进行分离纯化,根据理化性质和波谱数据等鉴定化合物结构。结果分离得到16个化合物,分别鉴定为(2S)-... 目的研究冰糖草(Scoparia dulcis L.)全草乙醇提取物的正丁醇萃取部位的化学成分。方法运用硅胶、Sephadex LH-20和半制备HPLC等各种方法进行分离纯化,根据理化性质和波谱数据等鉴定化合物结构。结果分离得到16个化合物,分别鉴定为(2S)-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-O-β-glucopyranoside(1)、(2R)-7-methoxy-2H-1,4-benzoxazin-3(4H)-one 2-O-β-glucopyranoside(2)、对羟基苯甲酸甲酯(3)、对羟基苯甲醛(4)、2-唑啉酮(5)、对羟基苯乙酮(6)、薏苡素(7)、苯甲酸(8)、对羟基肉桂酸甲酯(9)、黑麦草内酯(10)、异黑麦草内酯(11)、橙酰胺乙酸酯(12)、apigenin 7-O-rutinoside(13)、hispidulin-7-O-rutinoside(14)、isoschaftoside(15)和schaftoside(16)。结论化合物1为新化合物,化合物13~16为首次从冰糖草中分离得到。 展开更多
关键词 冰糖草 (2S)-7-methoxy-2H-1 4-benzoxazin-3(4H)-one 2-O-β-glucopyranoside isoschaftoside schaftoside 化学成分 分离 鉴定
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Characterization of MyDNMT1 and Changes of Global DNA Methylation during the Embryonic Development in Mizuhopecten yessoensis
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作者 许艺迪 刘卫东 +1 位作者 滕伟鸣 于佐安 《Agricultural Science & Technology》 CAS 2017年第11期2147-2154,共8页
DNA methylation is a critical epigenetic mechanism that influences gene transcription, genomic stability, X-chromosome inactivation and other factors, and appropriate DNA methylation is crucial in development. DNA met... DNA methylation is a critical epigenetic mechanism that influences gene transcription, genomic stability, X-chromosome inactivation and other factors, and appropriate DNA methylation is crucial in development. DNA methyltransferase 1 (DNMT1) plays an important role in maintaining the established methylation pattern during DNA replication. Although the effect of DNA methylation on embryonic development has been well known in vertebrates, little research has been carried out in invertebrates, especially in marine bivalves. In this study, the DNMT1 gene (MyDNMT1) was firstly identified from Mizuhopecten yessoensis. The full-length cDNA of MyDNMT1 was 5 039 bp, consisted of a 5' untranslated region (5'-UTR) of 79 bp, a 3' untranslated region (3'-UTR) of 199 bp, and a 4 761 bp open reading frame (ORF) encoding a peptide of 1 586 amino acids without a putative signal peptide. The relative mRNA expression level of MyDNMT1 was measured during the embryonic development of M. ydssoensis using real-time PCR, which revealed that the level at stage zygote and trochophore were significantly higher than that at other stages. We further examined the global DNA methylation during development by colorimetric method. The results showed that the methylation level was increased and reached the peak at blastula stage, then dramatically decreased, and fluctuated at early D-shaped larva stage. This study provided greater insight into the DNA methylation of embryonic development, which obtained a better understanding of the relationship between the DNA methylation and the embryonic development in bivalve mollusks. 展开更多
关键词 Mizuhopecten yessoensis DNA methylation DNA (cytosine-5) methyl- transferase 1 CLONING Global DNA methylation
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Structure Investigation of a New Alkaloid from Zanthoxylum Schinifolium Sieb et Zucc 被引量:1
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作者 Wang Dong and Gao Congyuan (Beijing Medical University, Beijing)Liu Suolan and Wei Luxuc (College of Traditwonal Chinese Medicine at Beijing, Beijing) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1991年第2期124-128,共5页
There are more than 250 kinds of Zanthoxylum plants in the world, of which about 40 species grow in China. In last 30 years, nearly 80 kinds of the plants have been studicd intensively and the results show that they a... There are more than 250 kinds of Zanthoxylum plants in the world, of which about 40 species grow in China. In last 30 years, nearly 80 kinds of the plants have been studicd intensively and the results show that they are of different chemical compositions and various physiological actions, such as having anthelmintic action, bacteriostasis, 展开更多
关键词 Zanthoxylum Schinifolium sieb et Zucc . Schinifoline N- methyl-2- heptyl-4-quinolonc NMR MS
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A Dinuclear Cd(Ⅱ)Cluster-based Coordination Polymer:Synthesis,Structure and Luminescence Property 被引量:3
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作者 薛丽平 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2018年第1期119-124,共6页
One two-dimensional coordination polymer with a formula of {[Cd(L)(imidazole)(H2O)](H2O)}n(1) was obtained by the synthetic reactions in aqueous solution using a newly synthesized H2L(H2L = methyl-3-hydroxy... One two-dimensional coordination polymer with a formula of {[Cd(L)(imidazole)(H2O)](H2O)}n(1) was obtained by the synthetic reactions in aqueous solution using a newly synthesized H2L(H2L = methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate) ligand.Compound1 crystallizes in monoclinic system,space group C2/c with a = 18.3176(11),b = 8.5366(9),c =8.4152(5)A,β = 101.789(6)°,V = 2797.1(3)A^3,Dc = 1.979 g/cm^3,C(10)H(12)N2O7SCd,Mr = 416.68 F(000) = 1648,μ = 1.745 mm^-1,F(000) = 1648,the final R = 0.0323 and wR = 0.0604 for 2604 observed reflections with I 〉 2s(I).Structure analyses reveal that the compound is constructed by dinuclear Cd(Ⅱ) clusters bridged by two hydroxyl oxygens of L^2-anions,which features a two-dimensional network with 4-connected sql topology.Furthermore,the compound exhibits high thermal stability and intense fluorescent emission,and could be explored for potentia luminescent materials. 展开更多
关键词 methyl-3-hydroxy-5-carboxy-2-thiophenecarboxylate topology luminescence property
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