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Now showing items 41-50 of 55
From Graphene Sheets to Boron Nitride Nanotubes via a Carbon-Thermal Substitution Reaction
(WILEY-BLACKWELL, 2011-03-17)
Microwave-Assisted Synthesis of a Ferrimagnetic Dodecanuclear Iron(III) Complex with a Fe(4)(OH)(4) Cubane Core
(AMER CHEMICAL SOC, 2011-02-22)
The microwave-assisted reaction of Fe-(ClO(4))(2) with NaN(3), NaO(2)CPh, and 1,3-di(2-pyridyl)-1,3-propanedione gave a ferrimagnetic dodecanuclear iron(III) complex that shows magnetization relaxation behavior.
Thermally Induced and Photoinduced Valence Tautomerism in a Two-Dimensional Coordination Polymer
(AMER CHEMICAL SOC, 2011-11-13)
Herein reported is the first two-dimensional coordination polymer capable of undergoing thermally induced and photoinduced valence tautomeric transitions.
A novel arenedisulfonate-templated 1D silver ladder constructed from 4-aminobenzonitrile ligand
(ROYAL SOC CHEMISTRY, 2011-07-27)
A novel infinite 1D Ag(I)-abn ladder, [nds subset of Ag(2)(abn)(4)](n) (1, H(2)nds = 1,5-naphthalenedisulfonic acid, abn = 4-aminobenzonitrile), was synthesized based on a nds anionic template which was encapsulated in the ...
Temperature-dependent conductivity of Emim(+) (Emim(+)=1-ethyl-3-methyl imidazolium) confined in channels of a metal-organic framework
(ROYAL SOC CHEMISTRY, 2011-10-05)
A 3D metal-organic framework, featuring three kinds of cation channels, was obtained through an ionothermal reaction. Investigation on its temperature-dependent conductivity indicates the contribution of order and disorder ...
Separation and Characterization of C70(C14H10) and C70(C5H6) from an
(AMER CHEMICAL SOC, 2011-06-09)
Although derivatives of fullerenes are prevalent in the fullerene-producing flame, the chemistry of these derivatives has rarely been discussed in the previous literature. In this paper, two D-Sh-C-70 derivatives, C-70(C14H10) ...
Microwave-Assisted Synthesis of a Ferrimagnetic Dodecanuclear Iron(III) Complex with a Fe-4(OH)(4) Cubane Core
(2011-03-21)
The microwave-assisted reaction of Fe-(ClO4)(2) with NaN3, NaO2CPh, and 1,3-di(2-pyridyl)-1,3-propanedione gave a ferrimagnetic dodecanuclear iron(III) complex that shows magnetization relaxation behavior.
一种在太阳光下具有高效光催化活性的氧化锌的制备方法
(2011-04-26)
一种在太阳光下具有高效光催化活性的氧化锌的制备方法,涉及一种光催化剂,尤其是涉及一种在太阳光下具有高效光催化活性的氧化锌的制备方法。提供一种所采用的纳米氧化锌的制备方法简便,催化剂可重复使用,所需设备简单,光催化效率高的在太阳光下具有高效光催化活性的氧化锌的制备方法。将无水醋酸锌加热后降至室温,所得纳米氧化锌水洗后烘干；甲基橙溶液的配置：配置至少2种不同浓度的甲基橙溶液,利用分光光度计做出浓度和吸光度的标准曲线；将纳米氧化锌和1种浓度的 ...
异烟酸与Ag(Ⅰ)及硅钨酸配位聚合物的合成与晶体结构
(2011-06-10)
水热条件下,合成得到了异烟酸与Ag(Ⅰ)及硅钨酸所形成的配位聚合物[Ag12(L)8(H2O)5](SiW12O40).6H2O(1)(L=isonicotinate,异烟酸)。通过元素分析和红外光谱、紫外光谱、X-射线单晶衍射对其组成和结构进行了表征。晶体结构分析结果表明:该配合物属于单斜晶系,C2/m空间群;晶胞参数分别为a=1.259 5(2)nm,b=2.429 7(3)nm,c=1.825 7(3)nm,β=103.794(2)°,V=5.425 ...
化学竞赛中培养学生学习兴趣的探索
(2011-09-28)
兴趣是学生力求认识事物、探索知识和爱好某种活动的意识倾向.组织中学生参加化学竞赛,有利于培养学生学习化学的兴趣,探索早期发现和培养优秀学生的思路、途径和方法,促进教师自身的专业发展.在化学竞赛辅导中,可以从引导兴趣的倾向性、维持兴趣的稳定性、拓展兴趣的广阔性、提升兴趣的效能性等4方面来培养学生的学习兴趣.