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国家自然科学基金(20473090)

作品数:5 被引量:2H指数:1
相关作者:朱井义郭玮王艳秋王利更多>>
相关机构:中国科学院中国科学院研究生院更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划更多>>
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5 条 记 录,以下是 1-10
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A New Layered Metal-Organic Framework Constructed by Tetranulear Lanthanide Clusters {Er4} and Mixed Ligands
<正>In the past decade,chemists have paid their attention to the design and construction of extended metal- org...
Zhi-Long Wang Guo-Yu Yang~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China.
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3-D 4~96~6 Topological Porous Framework Built by Hexa-CuⅡ Units and Trivacant Keggin B-α-PW9 Fragments
<正>The search for microporous materials with new topologies has been extensively carried out owing to the wide...
Zhao Jun-Wei Yang Guo-Yu~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China
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Wavelength-dependent Photodissociation Dynamics of Benzaldehyde
2009年
The ultrafast dynamics of benzaldehyde upon 260, 271, 284, and 287 nm excitations have been studied by femtosecond pinup-probe time-of-flight mass spectrometry. A bi-exponential decay component model was applied to fit the transient profiles of benzaldehyde ions and fragment ions. At the S2 origin, the first decay of the component was attributed to the internal conversion to the high vibrational levels of S1 state. Lifetimes of the first component decreased with increasing vibrational energy, due to the influence of high density of the vibrational levels. The second decay was assigned to the vibrational relaxation of the S1 whose lifetime was about 600 fs. Upon 287 nm excitation, the first decay became ultra-short (-56 fs) which was taken for the intersystem cross from S1 to T2, while the second decay component was attributed to the vibrational relaxation. The pump-probe transient of fragment was also studied with the different probe intensity at 284 nm pump.
Ben-kang LiuBing-xing WangYan-qiu WangLi Wang
关键词:BENZALDEHYDE
K7{(BO3)Zn[B12O18(OH)6]}·H2O:A New Zinc Borate with a 2-D Supermolecular Framework
Transition metal borate materials have attracted considerable attention due to their rich structural chemistry...
Rong Cheng Yang Guo-Yu~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China.
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In Situ Ligand Reactions under Hydrothermal Conditions Afford a Novel Zinc Substituted Polyoxovanadate Dimer
<正>During the past decade,the research in rapidly growing polyoxometalate(POM)area has focused on the design a...
Shou-Tian Zheng Guo-Yu Yang~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China.
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Fragmentation of N2 in 410 nm Intense Femtosecond Laser Field
2009年
Fragmentations of N2 in linearly polarized femtosecond 410 and 820 nm intense laser fields were studied by using the velocity mapping technique. Different behaviors of N2 at 410 and 820 nm were observed. Both the kinetic energy distributions and angular distributions of fragment ions in 410 nm field show weak dependency on laser intensities in the non- saturation regime, in contrast to the case in 820 nm. Different excited electronic states, i.e., non-Coulombic potentials populated via vertical'excitation, are suggested to play crucial roles in fragmentations at short wavelength.
Wei GuoJing-yi ZhuYan-qiu WangLi Wang
飞秒强场中NO_(2)的解离
2006年
分别利用810,405和270nm飞秒激光对NO2的解离和电离现象进行了实验研究.结果表明在3种波长下NO2+/NO+比率与场强无关,而与波长有关,即长波长有利于产生母体离子,较短波长易产生碎片离子;碎片离子来源于场致电离产生的母体离子进一步解离;实验中所有碎片离子峰形都显示解离过程释放出很小的平动能.和激光强度相比,激光波长在多原子分子强场电离解离过程中更为重要.
朱井义郭玮王艳秋王利
关键词:飞秒激光激光强度场致电离
Synthesis and description of a novel Metal-Organic Frameworks Based on Trigonal Prismatic Building Blocks
<正>At present,many examples of metal-organic frameworks(MOFs)have been reported for the default nets expected ...
Bing Li Guo-Yu Yang State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002 (China).
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Theoretical Studies on the Reaction Mechanism of 1-Chloroethane with Hydroxyl Radical被引量:1
2007年
The reaction mechanism of 1-chloroethane with hydroxyl radical has been investigated by using density functional theory (DFT) B3LYP/6-31G (d, p) method. All bond dissociation enthalpies were computed at the same theoretical level. It was found that hydrogen abstraction pathway is the most favorable. There are two hydrogen abstraction pathways with activation barriers of 0.630 and 4.988 kJ/mol, respectively, while chlorine abstraction pathway was not found. It was observed that activation energies have a more reasonable correlation with the reaction enthalpy changes (ΔHr) than with bond dissociation enthalpies (BDE).
王丙星王利
关键词:B3LYP
A supermolecular borate based on {B14} clusters
<正>Borate compouds are of great interest due to their structure chemistry and important practical applications...
Gao-Juan Cao Guo-Yu Yang~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,China
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