COVALENCE

作品数：7被引量：3H指数：1
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Covalence bridge atomically precise metal nanocluster and metalorganic frameworks for enhanced photostability and photocatalysis被引量：1
《Nano Research》2023年第1期1527-1532,共6页Aimin Yao Yuanxin Du Meng Han Yan Wang Jiashen Hu Qingtao Zhu Hongting Sheng Manzhou Zhu 
We acknowledge the financial support of the Natural Science research project of Universities in Anhui Province(No.KJ2021ZD0001).
Metal nanoclusters(NCs)with precise structure and ultrasmall size have attracted great interests in catalysis.However,the poor stability has limited its large-scale use.Herein,we proposed the“covalence bridge”strate...
关键词：atomically precise nanoclusters metal-organic frameworks covalent binding PHOTOSTABILITY photocatalytic hydrogen production 
Synthesis of Finite Molecular Nanotubes by Connecting Axially Functionalized Macrocycles被引量：2
《CCS Chemistry》2022年第12期3772-3780,共9页Liang-Liang Mao Hongyan Xiao Jin-Qin Zhao Zhuo Diao Wen Zhou Hongwei Li Chen-Ho Tung Li-Zhu Wu Huan Cong 
Financial support was provided by the National Natural Science Foundation of China(nos.21922113,22088102,21672227,21988102,and 22071257);the Chinese Academy of Sciences(no.XDB17000000);the National Key Research and Development Program of China(no.2017YFA0206903),K.C.Wong Education Foundation,and TIPC Director’s Fund.
Monodispersed molecular nanotubes,particularly those with uniform lengths,are challenging targets for chemical synthesis.Here,we report the general design and efficient synthesis of finite molecular nanotubes,utilizin...
关键词：molecular nanotube dynamic assembly MACROCYCLE COVALENCE coordination 
Covalently Attached Monolayer of Phthalocyanine on Chemically Modified Silicon Oxide Surface
《Chinese Chemical Letters》2004年第10期1233-1236,共4页QuanZHOU HongZhengCHEN JingZhiSUN MangWANG DuanLinQUE 
Highly stable monolayers of 2,9,16,23-tetracarboxyl phthalocyanine on 3-aminopropyl -triethoxysilane (ATS) modified silicon and quartz substrates were prepared by reaction of carboxyl and amine. The monolayers were ch...
关键词：MONOLAYER PHTHALOCYANINE SILICON QUARTZ covalence. 
Bonding in [CuNRR′]4 type clusters
《Science China Chemistry》2004年第3期179-183,共5页WANG Bingwu XU Guangxian CHEN Zhida 
This work was supported by the National Natural Science Foundation of China(Grant No.20041006).
Many polynuclear Cu(I) compounds have been synthesized, but the problem whether there is direct or no direct Cu-Cu bonding in these compounds is not clear. The electronic structure of [CuNRR′]4 type clusters was inve...
关键词：INORGANIC fullerene-like molecule  CHEMICAL bonding  covalence  copper. 
Study on the covalence of Cu and chemical bonding in an inorganic fullerene-like molecule,[CuCl]_(20)[Cp^(*)FeP_(5)]_(12)[Cu-(CH_(3)CN)_(2)^(+)Cl^(-)]_(5),by a density functional approach
《Science China Chemistry》2004年第2期91-97,共7页WANG Bingwu XU Guangxian CHEN Zhida 
This work was supported by the National Natural Science Foundation of China(Grant No.20041006).
The electronic structure and chemical bonding in a recently synthesized inorganic fullerene-like molecule, [CuCl]20[Cp*FeP5]12[Cu-(CH3CN) + 2Cl?]5 has been studied by a density functional approach. Geometrical optimiz...
关键词：INORGANIC fullerene-like molecule  chemical bonding  covalence  copper. 
Influence of bond valence on bond covalency in calcium doped lanthanum chromite
《Chinese Journal of Chemistry》1999年第2期108-113,共6页武志坚 孟庆波 张思远 
Project supported by Laboratory of Rare Earth Chemistry and Physics and Applied Chemistry Research Centre of Changchun, China
The influence of bond valence on bond covalence in Lal-xCaxCrO3(x = 0.0, 0.1, 0.2, 0.3) has been studied by using semi empirical method. This method is the extortion of the dialectic description theory proposed by Phi...
关键词：Bond covalence bond valence Lal-xCaxCrO3 semi empirical method 
The Covalences of Be and CI in Beryllium Chloride
《Chinese Science Bulletin》1993年第4期299-302,共4页义祥辉 黎乐民 单立安 徐光宪 
Project supported by the National Natural Science Foundation of China.
1 Introduction Generally beryllium is considered as a bivalent element, which implies that its oxidation state is+2. However, almost all compounds of beryllium are covalent ones with partial ionic character, even thos...
关键词：COVALENCE NBO BERYLLIUM chloride. 
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