Fenton及Photo-Fenton非均相体系降解有机污染物的研究进展
作者:
赵超;姜利荣;黄应平
期刊:
分析科学学报 ,2007年23(3):355-360 ISSN:1006-6144
作者机构:
[赵超; 姜利荣; 黄应平] 三峡大学生态与环境科学研究中心;三峡大学生态与环境科学研究中心 湖北宜昌443002;华中师范大学化学学院;武汉430070
关键词:
非均相;氧化降解
摘要:
Fenton及photo-Fenton氧化法是一种有效的应用于环境污染物处理领域的高新氧化技术之一,对Fenton试剂的固定化可以减少铁离子的二次污染,提高催化能力和光利用率,及扩展pH等优势.本文综述了近年来Fenton及photo-Fenton非均相体系氧化降解有机污染物的研究状况.引用文献57篇.
语种:
中文
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8b,8c-Diphenyl-2,6-dioxa-3a,4a,7a,8a-tetra-azaperhydro-cyclo-penta[def] fluorene-4,8-dione
作者:
Gao, Meng* ;Sun, Jing-Jing
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(8):O3480-U3201 ISSN:2053-2296
通讯作者:
Gao, Meng
作者机构:
[Gao, Meng; Sun, Jing-Jing] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构:
[Gao, Meng] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
摘要:
The title compound, C20H18N4O4, is a glycoluril derivative. The oxadiazinane six-membered ring displays a normal chair conformation. Inter-molecular C - H⋯O hydrogen bonds are present in the crystal structure. © International Union of Crystallography 2007.
语种:
英文
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有机化学中的硼氢化反应及其应用
作者:
李中华
期刊:
高等继续教育学报 ,2007年20(2):4-5,13 ISSN:2095-5987
作者机构:
华中师范大学,化学学院,武汉,430079;[李中华] 华中师范大学
关键词:
硼氢化;硼烷;烃基硼烷
摘要:
硼氢化反应是有机化学中的一个重要反应,本文详细地介绍了硼氢化反应的特点和烃基硼烷的氧化、氢化、羰基化等反应及其在有机合成中的应用。
语种:
中文
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桑色素在单壁碳纳米管修饰玻碳电极上的电化学行为研究
作者:
杨冬伟;刘慧宏
作者机构:
[杨冬伟; 刘慧宏] 华中师范大学化学学院襄樊学院化学与生物科学系
会议名称:
湖北省化学化工学会第十一届分析化学专业年会
会议时间:
2007-12
会议地点:
中国湖北武汉
摘要:
<正>用单壁碳纳米管修饰玻碳(SWNT/GC)电极,选择0.1mol L-1酒石酸缓冲液,对桑色素的电化学行为进行了初步的研究。在 pH=2.0~5.0的缓冲液中,在电势0.1V~0.7V(vs SCE)范围循环扫描,桑色素均产生一完全不可逆的氧化蜂,对比裸玻碳电极峰电流有显著性增强,其中 pH=3.0时峰电流响应最强,而 pH>5.0时峰电流渐消失,该氧化峰电位与 pH 值呈线性关系(E_
语种:
中文
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熵与自然资源关系与减熵合理利用自然资源策略分析
作者:
秦鹏芬;廖珍珍
期刊:
科协论坛(下半月) ,2007年(09):86-87 ISSN:1007-3973
作者机构:
华中师范大学城市与环境科学学院,湖北·武汉,430079;华中师范大学化学学院,湖北·武汉,430079
关键词:
自然资源与熵;熵的世界观;可持续发展
摘要:
在工业化进程加快的社会,全球变暖的环境下,熵的概念也越来越为人们所重视,研究熵成为一个热门的话题。本文分析了熵与热力学第二定律的关系,并通过对熵与自然资源的相关联系提出了熵的世界观,对于我国进行能源开发与调整利用提出了一些见解与看法。
语种:
中文
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含三氮唑及噫二唑环的酰基硫脲衍生物的合成
作者:
覃章兰;王芬华
期刊:
华中师范大学学报(自然科学版) ,2007年41(1):85-87 ISSN:1000-1190
作者机构:
华中师范大学,化学学院,武汉,430079;安徽工程科技学院,生物化学系,安徽,芜湖,241000;[王芬华] 安徽工程科技学院;[覃章兰] 华中师范大学
关键词:
2-苯基-1;3-三氮唑-4-甲醛;4-噁二唑;酰基硫脲;合成
摘要:
以D-葡萄糖为原料,经过三步反应后得到中间体2-苯基-1,2,3-三氮唑-4-甲醛(Ⅰ),然后用化合物Ⅰ与盐酸氨基脲缩合,氧化关环得到2-氨基-5-(2-苯基-1,2,3-三氮唑)-1,3,4-嗯二唑(Ⅱ),再用化合物Ⅱ与不同的酰基异硫氰酸酯反应得到新的目标化合物(Ⅲ).其结构经IR,1HNMR和元素分析等得以确认.
语种:
中文
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(S)-2-(1-Benzyl-5-bromo-1H-indol-3-yl)-2-hydroxy-N-methylacetamide
作者:
Lu, Hai-Hua;Chen, Cai-Bao;Dong, Hong-Ming*
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(7):O3261-U3962 ISSN:2053-2296
通讯作者:
Dong, Hong-Ming
作者机构:
[Chen, Cai-Bao; Dong, Hong-Ming; Lu, Hai-Hua] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构:
[Dong, Hong-Ming] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
摘要:
The title compound, C18H17BrN2O2, is a chiral indole derivative. The crystal structure shows both intra- and inter-molecular hydrogen-bonding inter-actions. © International Union of Crystallography 2007.
语种:
英文
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中学生直觉思维能力的培养
作者:
黎友根
期刊:
中小学实验与装备 ,2007年17(3):21-22 ISSN:1673-6869
作者机构:
华中师范大学化学学院,430079;[黎友根] 华中师范大学
关键词:
直觉思维;能力的培养;中学生;科学研究;设计实验;直觉能力;逻辑推理;逻辑思维
摘要:
法国哲学家柏格森认为人具有一种神秘的直觉能力,能够不经过逻辑推理直接理会真理。现象学创立者、德国哲学家胡塞尔也认为直觉是发现本质的意识的经验方式。许多科学发现、发明都是在一定的实验基础上凭直觉思维大胆猜测,然后设计实验,用逻辑思维去证实的。爱因斯坦在评价居里夫人的一生时,十分激动又满怀尊敬地说:“她一生中最伟大的科学功绩所以能够取得,一方面靠大胆的直觉,另一方面靠着在难以想象的极端困难情况下工作的热忱。”由此看出,直觉在科学研究中起举足轻重的作用。
语种:
中文
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{[N,N′-bis(4-methoxybenzyl)ethane-1,2-diyldiimino]diacetato-k 4 O,N,N′,O′}-bis(1H-imidazole-kN 3)zinc(II)
作者:
Zhang, Min;Weng, Hui-Li;Hu, Bo;Xu, Xing-Man*
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(7):m1797-m1797 ISSN:2053-2296
通讯作者:
Xu, Xing-Man
作者机构:
[Xu, Xing-Man; Zhang, Min; Xu, XM; Hu, Bo; Weng, Hui-Li] Cent China Normal Univ, Dept Chem, Wuhan 430079, Hubei, Peoples R China.
通讯机构:
[Xu, Xing-Man] C;Cent China Normal Univ, Dept Chem, Wuhan 430079, Hubei, Peoples R China.
摘要:
In the title complex, [Zn(C22H26N2O6)(C3H4N2)2], the ZnII atom is in a distorted octa-hedral coordination environment defined by the bond lengths and angles formed by an N4O2 donor set. In the crystal structure, inter-molecular N - H⋯O hydrogen bonds link mol-ecules into chains of rings. The atoms of one 4-methoxy-benzyl group are disordered over two sites in approximately a 0.7:0.3 ratio. © International Union of Crystallography 2007.
语种:
英文
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Tris(2,2′-bi-1H-imidazole)cadmium(II) carbonate
作者:
Cao, Minna;Hu, Bo;Luo, Feihua;Cheng, Cuixia;Hu, Zongqiu*
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(12):m2927-m2927 ISSN:2053-2296
通讯作者:
Hu, Zongqiu
作者机构:
[Hu, Zongqiu; Hu, Bo; Luo, Feihua; Cao, Minna; Cheng, Cuixia] Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China.
通讯机构:
[Hu, Zongqiu] C;Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China.
摘要:
The title compound, [Cd(C6H6N4)3]CO3, is composed of discrete cations and anions, which are each located on a twofold rotation axis. The central Cd II ion exhibits a distorted octa-hedral geometry and is coordinated by six N atoms from three 2,2′-biimidazole mol-ecules. The crystal packing is stabilized by N - H⋯O hydrogen bonds. © International Union of Crystallography 2007.
语种:
英文
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染发剂——美丽的隐形杀手
作者:
何香兰
期刊:
法治与社会 ,2007年(10):792 ISSN:1009-3141
作者机构:
华中师范大学化学学院 湖北·武汉430079
关键词:
染发潮流;吞噬健康;威胁生命
摘要:
目前,染发已经成为了一种潮流,越来越多的人为了美丽,不惜花钱花力炮制形形色色的头发,这其中染发剂功不可没。但是,不可否认的是,染发剂在满足人们爱美的心理时,它同时也在吞噬着人们的健康,它就象一个隐形杀手在威胁着人们的生命。
语种:
中文
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中学绿色化学教育
作者:
李海荣;孙瑞
期刊:
中小学实验与装备 ,2007年17(2):5-6 ISSN:1673-6869
作者机构:
华中师范大学化学学院,430079
关键词:
绿色化学教育;原子经济性;污染预防;中学;生产过程;环境友好;利用资源;科学研究
摘要:
绿色化学又称环境无害化学(Environmentally Benign Chemistry)、环境友好化学(Environmentally Friendly Chemistry)、清洁化学(Clean Chemistry)。绿色化学即是用化学的技术和方法去消灭或减少那些对人类健康、社区安全、生态环境有害的原料、催化剂、溶剂和试剂在生产过程中的使用,同时也要在生产过程中不产生有毒有害的副产物、废物和产品。绿色化学的根本目标就是从节约能源和防止污染的观点来重新审视和改革整个化学和化工领域,在化学研究和化工生产过程中不再使用有毒、有害的物质,不再产生废物,不再处理废物。绿色化学的最大特点在于它是在始端就采用实现污染预防的科学手段,因而过程和终端均为零排放或零污染。绿色化学主张在通过化学转换获取新物质的过程中充分利用每个原子,具有“原子经济性”,因此它既能够充分利用资源,又能够实现防止污染。作为一门新兴交叉学科,绿色化学已成为当今国际化学科学研究的前沿。
语种:
中文
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Diethyl 2,6-diethyl-4,8-dioxo-2,3,6,7-tetra-hydro-1H,5H-2,3a,4a,6,7a,8a- hexa-aza-cyclo-penta-[def]fluorene-8b,8c-dicarboxyl-ate
作者:
Li-Ping Cao* ;Yu-Zhou Wang;Meng Gao
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(8):O3374-U2195 ISSN:2053-2296
通讯作者:
Li-Ping Cao
作者机构:
[Li-Ping Cao; Meng Gao; Yu-Zhou Wang] Cent China Normal Univ, Coll Chem, Key Lab Pesticides & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
通讯机构:
[Li-Ping Cao] C;Cent China Normal Univ, Coll Chem, Key Lab Pesticides & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
摘要:
The title compound, C18H28N6O6, is a derivative of glycoluril, with two ethyl acetate substituents on the convex face of the glycoluril system. Two equivalent six-membered rings bind the N atoms from separate rings of the glycoluril unit to form the flexible sidewalls of a mol-ecular clip. One N atom from each ring carries an ethyl substituent. The crystal packing is stabilized by non-classical C - H⋯O hydrogen bonds. © International Union of Crystallography 2007.
语种:
英文
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Bis[μ-2-hydroxy-N′-(4-hydroxy-2-oxidobenzylidene)benzohydrazide] bis[pyridinezinc(II)] dimethylformamide disolvate
作者:
Huang, Jin-Shang;Li, Ming-Tian
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(8):m2170-m2171 ISSN:2053-2296
通讯作者:
Huang, J.-S.
作者机构:
Cent China Normal Univ, Dept Chem, Wuhan 430079, Hubei, Peoples R China.;Wuhan Univ Technol, Minist Educ, Key Lab Fibre Opt Sensing Technol & Informat Proc, Wuhan 430070, Hubei, Peoples R China.;[Li, Ming-Tian] Key Laboratory of Fibre Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan, Hubei 430070, China;[Huang, Jin-Shang] Department of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
通讯机构:
[Huang, J.-S.] D;Department of Chemistry, Central China Normal University, China
摘要:
Reaction of 2,4-dihydroxy-benzaldehye salicylhydrazide (L) with Zn(OAc)2·2H2O in a mixed solvent of pyridine and N,N-dimethyl-formamide (DMF) resulted in the formation of the title complex, [Zn2(C14H10N2O4)2(C5H5N)2] ·2C3H7NO. The asymmetric unit contains one complete neutral zinc complex and one-half of a second complex with crystallographic inversion symmetry, together with three DMF solvent mol-ecules. The Zn atoms, all having the same coordination geometry, are coordinated by three O atoms and two N atoms in a distorted tetra-gonal-pyramidal geometry, with phenolate O atoms acting as bridges between the Zn atoms. © International Union of Crystallography 2007.
语种:
英文
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Synthesis and biological activity of some novel N-aryl-N'-[5-(pyrid-4-yl)-1,3,4-thiadiazol-2-yl]ureas
作者:
Song, Xin-Jian* ;Tan, Xiao-Hong;Wang, Yan-Gang
期刊:
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS ,2007年182(8):1907-1913 ISSN:1042-6507
通讯作者:
Song, Xin-Jian
作者机构:
[Song, Xin-Jian] Hubei Inst Natl, Sch Chem & Environm Engn, Enshi 445000, Hubei, Peoples R China.;Hubei Inst Natl, Key Lab Biol Resources Protect & Utilizat Hubei P, Enshi, Hubei, Peoples R China.;Cent China Normal Univ, Coll Chem, Wuhan, Hubei, Peoples R China.
通讯机构:
[Song, Xin-Jian] H;Hubei Inst Natl, Sch Chem & Environm Engn, Enshi 445000, Hubei, Peoples R China.
关键词:
1,3,4-Thiadiazole;crystal structure;cytokinin activity;urea
摘要:
With the aim of searching for biologically active urea compounds, a series of new N-aryl-N'-[5-(pyrid-4-yl)-1,3,4-thiadiazol-2-yl]ureas have been designed and synthesized. Their structures were confirmed by IR, 1H NMR, and elemental analysis. The crystal structure of 3f was further determined by single crystal X-ray diffraction to obtain the structural information on this class of compounds. The preliminary bioassay showed that the title compounds exhibit promising cytokinin activity.
语种:
英文
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Synthesis and Crystal Structure of {4-[2-(9- Hexyl-9H-carbazol-3-yl)vinyl]phenyl} Dimethylamine
作者:
Wang Hong-Li;Xu Wen-Yuan;Wang Ding-Li* ;Bin, Zhang;Hong, Wu
期刊:
Chinese Journal of Structural Chemistry ,2007年26(6):691-694 ISSN:0254-5861
通讯作者:
Wang Ding-Li
作者机构:
[Wang Ding-Li] Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China.;Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China.;Accelink Technol Co Ltd, Wuhan 430074, Peoples R China.
通讯机构:
[Wang Ding-Li] C;Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China.
关键词:
Wittig reaction;crystal structure;N-hexyl-3-formylcarbazole
摘要:
The title compound {4-[2-(9-hexyl-9H-carbazol-3-yl)vinyl]phenyl} dimethylamine has been synthesized by the well known Wittig reaction, and its crystal structure was determined by single-crystal X-ray diffraction analysis. It crystallizes in monoclinic, space group P2_1/c with a = 47.87(2), b = 10.222(4), c = 9.612(4)(A), β = 92.401(9)°, V = 4699(3)(A)~3, Z = 8, C_(28)H_(32)N_2, M_r = 396.56, D_c = 1.121 g/cm~3, F(000) = 1712 and μ(MoKa) = 0.065 mm~(-1). The final R and wR are 0.0793 and 0.1983, respectively for 3524 observed reflections with I > 2σ(I). In the title compound, the bond lengths are normal, and the crystal is stabilized by Van der Waals’ forces.
语种:
英文
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First-principles calculation of pK(a) for cocaine, nicotine, neurotransmitters, and anilines in aqueous solution
作者:
Lu, Haiting;Chen, Xi;Zhan, Chang-Guo*
期刊:
JOURNAL OF PHYSICAL CHEMISTRY B ,2007年111(35):10599-10605 ISSN:1520-6106
通讯作者:
Zhan, Chang-Guo
作者机构:
Univ Kentucky, Coll Pharm, Dept Pharmaceut Sci, Lexington, KY 40536 USA.;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Zhan, Chang-Guo] Univ Kentucky, Coll Pharm, Dept Pharmaceut Sci, 725 Rose St, Lexington, KY 40536 USA.
通讯机构:
[Zhan, Chang-Guo] U;Univ Kentucky, Coll Pharm, Dept Pharmaceut Sci, 725 Rose St, Lexington, KY 40536 USA.
摘要:
The absolute pK<inf>a</inf> values of 24 representative amine compounds, including cocaine, nicotine, 10 neurotransmitters, and 12 anilines, in aqueous solution were calculated by performing first-principles electronic structure calculations that account for the solvent effects using four different solvation models, i.e., the surface and volume polarization for electrostatic interaction (SVPE) model, the standard polarizable continuum model (PCM), the integral equation formalism for the polarizable continuum model (IEFPCM), and the conductor-like screening solvation model (COSMO). Within the examined computational methods, the calculations using the SVPE model lead to the absolute pK<inf>a</inf> values with the smallest root-mean-square-deviation (rmsd) value (1.18). When the SVPE model was replaced by the PCM, IEFPCM, and COSMO, the rmsd value of the calculated absolute pK<inf>a</inf> values became 3.21, 2.72, and 3.08, respectively. All types of calculated pK<inf>a</inf> values linearly correlate with the experimental pK<inf>a</inf> values very well. With the empirical corrections using the linear correlation relationships, the theoretical pK<inf>a</inf> values are much closer to the corresponding experimental data and the rmsd values become 0.51-0.83. The smallest rmsd value (0.51) is also associated with the SVPE model. All of the results suggest that the first-principles electronic structure calculations using the SVPE model are a reliable approach to the pKa prediction for the amine compounds. ©2007 American Chemical Society.
语种:
英文
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2-Nitrobenzyl diphenyl phosphate
作者:
Jin, Wei-Wei;Chen, Cai-Bao;Li, Xin-Yong*
期刊:
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY ,2007年63(6):O3016-U3284 ISSN:2053-2296
通讯作者:
Li, Xin-Yong
作者机构:
[Chen, Cai-Bao; Li, Xin-Yong; Li, XY; Jin, Wei-Wei] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构:
[Li, Xin-Yong] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticides & Chem Biol, Wuhan 430079, Peoples R China.
摘要:
In the title compound, C19H16NO6P, the dihedral angles between the nitro-benzyl ring and the phenyl rings are 53.74 (3) and 63.30 (2)°, and that between the two phenyl rings is 88.86 (3)°. Inter-molecular C - H⋯O hydrogen bonds result in the stabilization of the crystal structure. © International Union of Crystallography 2007.
语种:
英文
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SciFinder Scholar 2007数据库简介
作者:
严刚
期刊:
华中师范大学学报(自然科学版) ,2007年41(4):552 ISSN:1000-1190
作者机构:
[严刚] 华中师范大学化学学院资料室
关键词:
数据库;美国化学文摘;生命科学;检索工具;生物医学;科学资源
摘要:
美国化学文摘社CA网络版SciFinder的学术版SciFinder Scholar目前版本更新至“SciFinder Scholar 2007”。SciFinder Scholar是当今能提供全面涵盖化学(5大类80小类)与物理学、材料学、生命科学及其它相关科学等信息文摘的学术权威检索工具。SciFinder Scholar 2007内容涵盖了CA纸本和光盘版从1907至今的所有信息(即时更新),整合了Caplus、Registry、CASReact、Chemcats、Chemlist、National Library of Medicine等6个数据库的信息(包括生物医学,物质,反应数据库),并且比任何其他科学资源有更多的期刊和专利(超过50家专利机构授权)链接,文献量占全世界化工化学总文献量的98%。
语种:
中文
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新型香料3,3,6,6-四苄基-1,2,4,5-四硫环己烷的合成及热分析研究
作者:
胡卫兵;冯驸;刘红霞
期刊:
现代食品科技 ,2007年23(3):39-41 ISSN:1673-9078
作者机构:
湖北民族学院化学与环境工程学院;湖北民族学院化学与环境工程学院 湖北恩施445000;湖北恩施445000 华中师范大学化学学院;湖北武汉430079;[冯驸] 湖北民族学院
关键词:
3,3,6,6-四苄基-1,2,4,5-四硫环己烷;合成
摘要:
以中间体二苄基二硫醇和三氯化铁为原料,乙醇和水为溶剂,合成了新型香料3,3,6,6-四苄基.1’2’4,5-四磺环己烷,产率为50.3%,用差示扫描量热法(DSC)和热重法(TG)研究其热性质,加热温度为50℃至500℃,加热速率10℃/min.结果表明,在312℃开始分解,应在312℃以下保存,适用于汤料调味品而不适用于烧烤类调味。
语种:
中文
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