Structures and properties of weakly associated polyoxometalate-transition metal complexes
弱缔合多金属氧酸盐-过渡金属配合物的结构和性能
基本信息
- 批准号:15550047
- 负责人:
- 金额:$ 2.37万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2003
- 资助国家:日本
- 起止时间:2003 至 2005
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This research project aims at synthesizing complexes of polyoxometalates with transition metal ions, analyzing their crystal structures, and then examining the physicochemical properties that are specific to their structures. First, the magnetic properties of [Cu_2(OH)_2(OH_2)_6][Cu_2(OH_2)_8][V_<10>O_<28>]-4(CH_3)_2CO, which was first synthesized and characterized by the investigator, were investigated. The compound has two pairs of Cu^<2+> cations on the two sides of the [V_<10>O_<28>]^<6-> core, which are separated by 2.89 Å and 3.37 Å, respectively. The unpaired electrons of these pairs were not coupled and each Cu^<2+> atom works as an independent spin center. Second, double salts of [V_<10>O_<28>]^<6-> with Cu^<2+> and NH_4^+, K^+ or Rb^+ were synthesized and their crystal structures were determined. In these crystals, a water molecule coordinating to the cation supports a hydrogen atom on the [V_<10>O_<28>]^<6-> core via hydrogen bond and stabilizes a monoprotonated species, [HV … More _<10>_O<28>]^<5->. In these crystals, the precise location of the protons on the monoprotonated decavanadate anion was first determined unambiguously. Also, the structure determination of [SiW_<11>O_<39>]^<8-> crystallized with Na^+ and guanidinium cations revealed that the compound exhibits a novel screw structure of [SiW_<11>O_<39>]^<8-> linked by Na^+ cation, although transition metals were not incorporated into the compound. Its structure indicated a possibility that it would show non-linear optical properties and thus pulsed laser light with the wavelength of 800 nm was irradiated, resulting in the observation of second harmonic generation. In parallel with these studies, the investigator has installed and upgraded diffractometers at two synchrotron facilities : SPring-8 and Photon Factory of High Energy Accelerator Research Organization. These efforts have profited the precise structure analyses of abovementioned NLO active silicotungstate crystals as well as the structural elucidation of the molecular growth and intermolecular condensation of mixed valence molybdenum giant clusters with nanometer sized ring shape. Less
本课题旨在合成具有过渡金属离子的多金属氧酸盐配合物,分析其晶体结构,并研究其结构特有的物理化学性质。首先,对研究者首次合成并表征的[Cu_2(OH)_2(OH_2)_6][Cu_2(OH_2)_8][V_<10>O_<28>]-4(CH_3)_2CO的磁性能进行了研究。该化合物在[V_<10>O_<28>]^<6->核两侧有两对Cu^<2+>阳离子,它们的间距分别为2.89 Å和3.37 Å。这些电子对中的未配对电子没有耦合,每个Cu^<2+>原子作为一个独立的自旋中心工作。其次,合成了Cu^<2+>和NH_4^+、K^+或Rb^+的[V_<10>O_<28>]^<6->双盐,并测定了它们的晶体结构。在这些晶体中,与阳离子配位的水分子通过氢键将氢原子支撑在[V_<10>O_<28>]^<6->核上,并稳定了单质子化物质[HV…More _<10>_O<28>]^<5->。在这些晶体中,质子在单质子化的十氰酸阴离子上的精确位置首次被明确地确定。同时,对[SiW_<11>O_<39>]^<8->与Na^+和胍离子结晶的结构测定表明,该化合物具有Na^+阳离子连接的[SiW_<11>O_<39>]^<8->的新型螺旋结构,但未掺入过渡金属。它的结构表明它有可能呈现非线性光学性质,因此照射波长为800 nm的脉冲激光,观察到二次谐波的产生。在进行这些研究的同时,研究者还在两个同步加速器设施:spring8和高能加速器研究组织的光子工厂安装和升级了衍射仪。这些工作有助于对上述NLO活性硅钨酸盐晶体进行精确的结构分析,以及对具有纳米尺寸环状的混合价钼巨团簇的分子生长和分子间缩聚的结构阐明。少
项目成果
期刊论文数量(63)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
The Fifth Series of Experimental Chemistry, Vol.11
实验化学第五辑第11卷
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:X.Zhang;J.Jin;尾関智二(分担);T.Ozeki et al.
- 通讯作者:T.Ozeki et al.
Crystal structure of a mixed-metal β-Keggin molybdotungstosilicate, K_4[A-β-SiMo_3W_9O_<40>]-9H_2O
混合金属 β-Keggin 钼钨硅酸盐的晶体结构,K_4[A-β-SiMo_3W_9O_<40>]-9H_2O
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:A.Ishii;T.Ozeki
- 通讯作者:T.Ozeki
The effect of carbon chain length of the diphosphine ligand on the aurophilic interaction. Synthesis and X-ray structural study for a series of Au(I) compounds with Ph2P–R–PPh2 and S-(CH2)n-py ligands
- DOI:10.1016/j.jorganchem.2004.08.028
- 发表时间:2005-01
- 期刊:
- 影响因子:2.3
- 作者:S. Onaka;M. Yaguchi;R. Yamauchi;T. Ozeki;Mitsuhiro Ito;T. Sunahara;Yuka Sugiura;Michito Shiotsuka;Keiko Nunokawa;Makoto Horibe;Kazuya Okazaki;A. Iida;Hiroka Chiba;K. Inoue;H. Imai;K. Sako
- 通讯作者:S. Onaka;M. Yaguchi;R. Yamauchi;T. Ozeki;Mitsuhiro Ito;T. Sunahara;Yuka Sugiura;Michito Shiotsuka;Keiko Nunokawa;Makoto Horibe;Kazuya Okazaki;A. Iida;Hiroka Chiba;K. Inoue;H. Imai;K. Sako
Structure refinement of i-Al-Pd-Re quasicrystals by synchrotron radiation data
- DOI:10.1016/j.jnoncrysol.2003.11.030
- 发表时间:2004-03
- 期刊:
- 影响因子:3.5
- 作者:A. Yamamoto;H. Takakura;T. Ozeki;A. Tsai;Y. Ohashi
- 通讯作者:A. Yamamoto;H. Takakura;T. Ozeki;A. Tsai;Y. Ohashi
Successive Phase Transitions in Crystalline State of Mesogenic Butyl 4-[2-(Perfluorooctyl)ethoxy]benzoate
介晶 4-[2-(全氟辛基)乙氧基]苯甲酸丁酯晶态的连续相变
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:M.Maeda;M.Nagasawa;M.Tachibana;H.Kawaji;T.Atake;A.Iida;T.Ozeki;K.Hori
- 通讯作者:K.Hori
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OZEKI Tomoji其他文献
OZEKI Tomoji的其他文献
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{{ truncateString('OZEKI Tomoji', 18)}}的其他基金
Design and dynamic control of nano-space in the ionic crystals of nano-sized spherical polyoxometalates
纳米球形多金属氧酸盐离子晶体纳米空间的设计与动态控制
- 批准号:
26286001 - 财政年份:2014
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Syntheses of asymmetrically fused polyoxometalate-silver ethynide composite clusters and their luminescence properties
不对称稠合多金属氧酸盐-乙炔银复合团簇的合成及其发光性能
- 批准号:
26620042 - 财政年份:2014
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Investigation of the effect of ion-pair formation on the stability of hydrogen-bond-assisted polyoxometalate aggregates
研究离子对形成对氢键辅助多金属氧酸盐聚集体稳定性的影响
- 批准号:
22550056 - 财政年份:2010
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of a rational synthetic pathways of porous materials by using polyoxometalates as building blocks
以多金属氧酸盐为结构单元开发多孔材料的合理合成途径
- 批准号:
13640555 - 财政年份:2001
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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