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内电解法处理难降解有机废水试验研究 被引量:2
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作者 李国璧 金奇庭 《山西建筑》 2007年第31期169-170,共2页
采用内电解法对081特种难降解特种废水进行试验研究,分析了废水来源及水质情况,对内电解法反应机理进行了介绍,总结了不同pH值、不同碳铁比、不同接触时间、不同进水COD对废水COD去除率的影响,为后续处理创造了条件。
关键词 内电解 难降解 焦炭 铸铁屑
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无机化学实验教学的探讨
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作者 李国璧 刘生桂 《广东化工》 CAS 2014年第2期132-132,138,共2页
无机化学实验是化学专业最早开设的实验必修课程,不仅要强化学生的基本操作和技能的训练,使其形成规范化的操作,养成良好的实验习惯;还要注重提高学生的基本知识,全面发展学生多种智能,提升学生能力。
关键词 无机化学实验 培养 规范操作 能力
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基于乙酰丙酮缩乙二胺席夫碱配合物的合成与性能研究
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作者 李珊珊 李国璧 蔡跃鹏 《华南师范大学学报(自然科学版)》 CAS 北大核心 2012年第1期6-13,共8页
结合作者研究的结果,综述了乙酰丙酮缩乙二胺席夫碱配合物的合成策略及其影响因素,同时也简述了它们的荧光性能和清除自由基活性.
关键词 乙酰丙酮缩乙二胺 席夫碱配合物 合成策略 性能
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无机化学实验教学的思考
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作者 李国璧 刘生桂 朱国贤 《广东化工》 CAS 2020年第15期212-212,共1页
无机化学实验是化学专业最早开设的基础实验课程,通过问题导学,培养良好的实验习惯,撰写实验报告,三个方面提升学生的综合能力。
关键词 无机化学实验 综合素质
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学习实践“三个代表” 促进企业不断发展
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作者 李国璧 《煤炭企业管理》 2004年第2期54-55,共2页
“三个代表”重要思想是指导我们企业改革发展以及各项工作的行动指南,认真学习和努力实践“三个代表”是促进企业不断快速发展的力量源泉和强大动力。企业的决策者和党委一班人必须在实践中学习和落实。
关键词 企业改革 快速发展 决策者 促进 源泉 学习 动力 “三个代表”重要思想 行动指南 落实
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Synthesis,Crystal Structure and Luminescent Property of Cadmium Complex Based on 2-(2-(1Hbenzo[d]imidazol-2-yl)benzyl)-1H-benzo[d]-imidazole 被引量:3
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作者 苏文义 李国璧 +3 位作者 潘荣楷 唐妃琼 钟玲 刘生桂 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2014年第6期909-914,共6页
The complex [Cd(bbb)Cl2]·DMF·H2O, where bbb is 2-(2-(1H-benzo[d]imidazol-2-yl)benzyl)-1H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For the complex... The complex [Cd(bbb)Cl2]·DMF·H2O, where bbb is 2-(2-(1H-benzo[d]imidazol-2-yl)benzyl)-1H-benzo[d]imidazole, was synthesized and characterized by X-ray single-crystal structure analyses. For the complex: C24H25Cl2CdN5O2, Mr = 598.77, crystal system, triclinic, space group P1, a = 9.9878(12), b = 10.0008(12), c = 13.2217(15) , α = 80.674(2), β = 72.158(2), γ = 86.776(2)°, V = 1240.5(3) 3, Z = 2, Dc = 1.598 g/cm3, λ = 0.71073, μ(MoKα) = 1.127 mm–1, F(000) = 600, S = 1.04, R = 0.0905 and wR = 0.3088 for 4805 observed reflections with I 〉 2σ(I). It is a neutral complex. The distorted tetrahedral geometry of cadmium ion is coordinated by two nitrogen atoms of ligand and two chloride ions. The complex emits blue green luminescence with emission peaks at 480 nm in DMF solution. 展开更多
关键词 BENZIMIDAZOLE cadmium complex crystal structure LUMINESCENCE
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Synthesis, Crystal Structure and Luminescent Property of a Dinuclear Cadmium Complex Based on 1,2,3,4-Tetra(1H-benzo[d]imidazol-2-yl)butane 被引量:1
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作者 吴绮婷 吴丽宾 +4 位作者 李国璧 刘生桂 潘荣楷 苏文义 黄倩文 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2015年第2期260-266,共7页
A complex [Cd2(tbb)C14]·4DMF·3H2O, where tbb is 1,2,3,4-tetra(1H-benzo[d]imi- dazol-2-yl)butane, was synthesized and characterized by X-ray single-crystal structure analyses. For this complex: C44H49Cd2... A complex [Cd2(tbb)C14]·4DMF·3H2O, where tbb is 1,2,3,4-tetra(1H-benzo[d]imi- dazol-2-yl)butane, was synthesized and characterized by X-ray single-crystal structure analyses. For this complex: C44H49Cd2C14N12OT, Mr= 1224.55, monoclinie system, space group C2/c, a = 29.563(3), b = 14.2580(17), c = 26.355(3) A,β = 97.036(2)°, V = 11025(2) A3, Z = 8, D,.= 1.475 g/cm3, 2 = 0.71073 A, IL(MoKa) = 1.021 mm-1, F(000) = 4936, S = 1.047, R = 0.0680 and wR = 0.1832 for 11812 observed reflections with I 〉 2σ(I). It is a neutral dinuclear complex. One 1,2,3,4-tetra(1H-benzo[d]imidazol-2-yl)butane coordinates to two cadmium ions. Each cadmium ion is coordinated by two nitrogen atoms of tbb and two chloride ions. The complex emits blue luminescence in DMF solution as well as in solid powder state. 展开更多
关键词 BENZIMIDAZOLE cadmium complex crystal structure luminescence
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Synthesis, Crystal Structure and Luminescent Property of a Dinuclear Cadmium Complex Based on 1,2-Bis(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene 被引量:1
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作者 潘荣楷 刘生桂 +3 位作者 宋江莉 李国璧 苏文义 倪春林 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2017年第8期1355-1360,共6页
A dinuclear cadmium complex [Cd2(bpbb)2Cl2(μ-Cl2)], where bpbb is 1,2-bis(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene, was synthesized and characterized by X-ray singlecrystal structure analyses. Crystal data: C... A dinuclear cadmium complex [Cd2(bpbb)2Cl2(μ-Cl2)], where bpbb is 1,2-bis(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene, was synthesized and characterized by X-ray singlecrystal structure analyses. Crystal data: C(64)H(44)Cd2Cl4N8, Mr = 1291.67, triclinic system, space group P1, a = 10.076(3), b = 12.730(4), c = 13.176(4) A, α = 99.087(3), β = 109.859(3), γ = 112.551(3)°, V = 1384.8(7) A3, Z = 1, Dc = 1.549 g/cm^3, λ = 0.71073 A, μ(Mo Kα) = 1.010 mm^(–1), F(000) = 648, S = 1.062, R = 0.0425 and wR = 0.1130 for 9688 observed reflections with I 〉 2s(I). One 1,2-bis(1-phenyl-1H-benzo[d]imidazol-2-yl)benzene coordinates to one cadmium ion. The cadmium is five-coordinated by three chloride ions and two nitrogen atoms from bpbb. Each cadmium ion is bridged by two chloride ions. The decomposition temperature is up to 420 ℃. The complex emits blue luminescence in DMF solution and in solid powder state. 展开更多
关键词 BENZIMIDAZOLE cadmium complex crystal structure luminescence
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Synthesis,Crystal Structure and Redox Property of a Copper(Ⅱ)Complex Based on 1,1-Bis(1H-benzoimidazol-2-ylmethyl)cyclohexane 被引量:1
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作者 潘荣楷 李国璧 +3 位作者 刘生桂 杨桂珍 周晓平 陈晓荧 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第3期348-354,共7页
A novel mononuclear copper(Ⅱ) complex [Cu(bbmc)Cl_2]·DMF,where bbmc is 1,1-bis(1H-benzoimidazol-2-ylmethyl)cyclohexane,was synthesized and characterized by X-ray single-crystal structure analysis.The compl... A novel mononuclear copper(Ⅱ) complex [Cu(bbmc)Cl_2]·DMF,where bbmc is 1,1-bis(1H-benzoimidazol-2-ylmethyl)cyclohexane,was synthesized and characterized by X-ray single-crystal structure analysis.The complex crystallizes in triclinic,space group P1 with a = 9.1088(5),b = 11.0075(4),c = 14.2326(6)A,α = 97.188(3),β = 96.394(4),γ = 111.430(4)°,V = 1298.73(10) A^3,Z = 2,D_c = 1.409 g/cm^3,μ(Mo Kα) = 1.074 mm^-1,F(000) = 572,S = 1.078,R = 0.0381 and w R = 0.0876 for 5593 observed reflections with I 〉 2σ(I).The central Cu(Ⅱ) ion adopts a distorted tetrahedral geometry coordinated by two nitrogen atoms of the ligand and two chloride ions.The complex showed its thermal decomposition temperature up to 226 ℃ and exhibited an irreversible one-electron transfer process involving Cu^Ⅱ/Cu^I couple. 展开更多
关键词 benzimidazole copper(Ⅱ) complex crystal structure redox property
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