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LOCALIZED MOLECULAR ORBITAL STUDY ON ELECTRONIC STRUCTURES OF BOWL-SHAPED AROMATIC HYDROCARBONS

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Chinese Chemical Letters 1993年第11期4卷 963-964页

作者： Zhi Da CHEN Chun Wan LIU Jia Xi lu fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences State Key Laboratory of Structural Chemistry, Fuzhou, fujian 350002

The localized molecular orbitals for typical bowl-shaped circulenes are obtained by the use of INDO-LMO method. It is found that these bowl-shaped circulenes with strained π-electron systems are still aromatic and th... 详细信息

关键词： In LOCALIZED MOLECULAR ORBITAL STUDY ON ELECTRONIC STRUCTURES OF BOWL-SHAPED AROMATIC HYDROCARBONS 工工

RESEARCH ON TRINUCLEAR MOLYBDENUM CluSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURE OF （C5H7S2）3[Mo3（μ3-S）（μ2-S2）3Cl7]

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Science in China,Ser.B 1983年第11期26卷 1121-1130页

作者：黄金陵商茂虞卢嘉锡 fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou

The space group of the title crystal is Pnam. The unit cell parameters are: a=17.226（4）, b=14.306（7）, c=15.074（4）; z=4, Dobs=2.03g·cm-3, Dcalc=2.063g·cm-3. The crystal structure was solved by the heavy atom method and refined by the full-matrix least-squares until the final conventional discrepancy factor was reduced to 0.068. The results of the investigation show that the crystal consists of trinuclear Mo cluster anions [Mo3（μ3-S）（μ2-S2）3Cl7]3- together with planar （C5H7S2）+ monocations, surrounding the cluster anions. In the cluster anion three Mo atoms, forming a nearly equilateral triangle （2.755（1）, 2.755（1）, 2.743（1））, are bound by a μ3-S bridging atom, while each pair of Mo atoms is bridged further by a μ2-S2 ligand. Besides, each Mo atom is coordinated to two terminal Cl atoms, so that the coordination sphere of each Mo atom approaches closely a pentagonal bipyramid. In addition, a single Gl atom, not at all involved in the coordination spheres of the three Mo atom

关键词： Mo3 CRYSTAL AND MOLECULAR STRUCTURE OF C5H7S2 RESEARCH ON TRINUCLEAR MOLYBDENUM CluSTER COMPOUNDS Cl

RESEARCH ON TRINUCLEAR MOLYBDENUM CluSTER COMPOUNDS——CRYSTAL AND MOLECULAR STRUCTURE OF （Et4N）2[Mo3（μ3-O）（μ3-Cl）（μ2-Cl）3Cl6]·EtOH

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Science in China,Ser.B 1985年第2期28卷 561-568页

作者：商茂虞黄金陵卢嘉锡 fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou

The title crystal belongs to the monoclinic system. The space group is P21/c with unit cell parameters: a=11.379（3）, b=20.766（2）, c=14.487（3）, β=91.49（2）°, V=3519（2）3Z=4, Dc=***-3, D0=***-3. The crystal structure was solved by the heavy atom method and difference Fourier synthesis and refined by the full-matrix least-squares to a final R factor of 0.040 based on 3261 unique reflections with intensities I≥3σ（I）. The structure consists of two sots of tetraethylammonium cations and trinuclear Me cluster anions. In the cluster anion the three Mo atoms form an isosceles triangle with Mo-Mo distances of 2.601（1）, 2.608（1）, 2.642（1）, respectively, showing a strong bonding interaction between the metal atoms. One μ3-O atom and one μ3-Cl atom are situated above and below the triangle respectively, binding the three Me atoms to form a triangular bipyramidal cluster core. Each pair of Mo atoms is bridged further by a μ2-Cl atom situated on the Mo3 triangular plane. In addition, each

关键词： Mo3 RESEARCH ON TRINUCLEAR MOLYBDENUM CluSTER COMPOUNDS Et4N CRYSTAL AND MOLECULAR STRUCTURE OF EtOH Cl

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Syntheses and Crystal Structures of Silicotungstic acid Decorated by Cobalt Organic Complex

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Syntheses and Crystal Structures of Silicotungstic acid Deco...

A novel molybdenum oxide compound with manganese-o-phen subunit: [Mn（o-phen）（H2O）MoO4]·H2O （o-phen=o-phenanthroline）

中国化学会第六届全国结构化学学术会议

作者： Xue-jing Dui,Xiao-yuan Wu,Can-zhong lu~* fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences Fuzhou 350002

＜正＞POMs have abundant applications in catalysis,photochemistry,magnetism,and biochemistry,so more and more attention has been paid to design new POM-based organic-inorganic hybrid *** Silicotungstic acid decorated ...

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A novel molybdenum oxide compound with manganese-o-phen subu...

SYNTHESIS,CRYSTAL STRUCTURE AND PROPERTIES OF TETRAETHYLAMMONIUM BIS[BIS(2-OXYPHENYL)DISULFIDE-O,O',S]MANGANESE

中国化学会第十三届金属有机化学学术讨论会

作者： Quan-Zheng Zhang Can-Zhong lu fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou 350002. Corresponding author.

＜正＞ The significant contemporary interest in metal oxide-based inorganic-organic hybrid materials derives from their hierarchical structures and potential applications in some fields, such as catalysis, sorption, electric conductivity, magnetism, and optical materials. Therefore, the discovery of new materials and rational design of such solid oxides remains one important and very active subject. In view of this point, we have recently carried out an attempt to incorporate the complex manganese-organonitrogen ligand subunits into molybdenum oxides and

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Chinese Chemical Letters 1990年第2期1卷 123-124页

作者： Xue Tai CHEN Han Qin LIU Ling Hong WENG Liang Ren HUANG Da Xu WU Xin Jian LEI Bei Sheng KANG Jia Xi lu fujian Institute of Research on the Structure of Matter and Fuzhou Laboratory of Structural Chemistry,Chinese Academy of Sciences,Fuzhou 350002

The synthesis,crystal structure and properties of the first Mn(III)-disulfide complex(Et_4N)[Mn(mp-mp)_2]were reported with the Mn(III) ion in a S_2O_4 octahedron distorted due to Jahn-Teller *** data revealed its par... 详细信息

关键词： SYNTHESIS,CRYSTAL STRUCTURE AND PROPERTIES OF TETRAETHYLAMMONIUM BIS[BIS OXYPHENYL)DISULFIDE-O,O S]MANGANESE

THE CRYSTAL AND MOLECULAR STRUCTURE OF A DI-ETHYLENE COMPLEX OF PLATINUM CHLORIDE

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Chinese Science Bulletin 1983年第5期28卷 628-631页

作者：黄金陵周忠元黄梁仁卢嘉锡 fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhouhe olefin complexes of transition metal atoms have been attracting wide attention among chemists for a long time. The reason for this probably is due to the fact that the research in this area is helpful not only to the understanding of the bonding feature concerning the transition metal atom and olefin molecules but also to the evolution of complex catalysis theory. Among this type of complexes the simplest and

The olefin complexes of transition metal atoms have been attracting wide attention among chemists for a long time. The reason for this probably is due to the fact that the research in this area is helpful not only to the understanding of the bonding feature concerning the transition metal atom and olefin molecules, but also to the evolution of complex catalysis theory. Among this type of complexes, the simplest

关键词： olefin attracting bonding complexes probably catalysis helpful concerning anhydride belongs

CRYSTAL AND MOLECULAR STRUCTURE OF A TRIS-THIOUREA COMPLEX OF MOLYBDENUM(Ⅲ) CHLORIDE Mo[SC(NH_2)_2]_3Cl_3

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Chinese Science Bulletin 1981年第4期26卷 322-324页

作者：黄金陵林墀昌林连堂卢嘉锡 fujian Institute of Research on the Structure of Matter Academia Sinica Fuzhou University

A series of thiourea complexes of molybdenum have been prepared by one of which is the rather stable MoCl3（Tu）3. On the basis of magnetic measurements, has proposed that in the complex the molybdenum （Ⅲ） atom has a configuration of octahedral coordination of six ligands. A complete structural investigation will obviously lead to a better understanding of the interesting complex.

关键词： octahedral complexes molybdenum thiourea CHLORIDE Mo[SC NH2 l3 trigonal bonds intramolecular

铁路信号系统安全完整性需求的确定及分配方法

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铁道通信信号 2011年第4期47卷 55-57页

作者：刘晓敏李智吕福健华北计算机系统工程研究所北京和利时系统工程有限公司

安全完整性是安全相关系统实现其安全功能的能力。明确的安全完整性需求及适当的分配,有利于提高铁路信号产品的安全性。从安全完整性概念出发,介绍了可行的铁路信号产品安全完整性需求的确定以及分配方法。对于安全相关产品的开发有着... 详细信息

安全完整性是安全相关系统实现其安全功能的能力。明确的安全完整性需求及适当的分配,有利于提高铁路信号产品的安全性。从安全完整性概念出发,介绍了可行的铁路信号产品安全完整性需求的确定以及分配方法。对于安全相关产品的开发有着至关重要的作用。

关键词：安全完整性安全完整性等级危害识别