双核体

Mn-complexes in which Mn atom ligand with the N atom within ligand can stimulate the recovery of electron transfer and oxygen evolution. The trinuclear Mn-complex is extremely sensitive to the addition of CaCl2. It is suggested that there is an interaction between Ca2 and carboxyl within the trinuclear Mn-complex during photoactivation and this interaction benefits the ligation of Mn atom to the apo-WOC and form an active WOC. Binuclear MnMn complex shows slightly higher efficiency than binuclear MnMn complex in restoration of O2 evolution activity. It is suggested from our results that recovery of electron transport and O2 evolution with synthetic Mn-complexes is affected by different factors. Cl- can stimulate the reconstitution of WOC at the concentration of over 100mM;the maximal recovery of O2 evolution activity requires the presence of CaCl2 and 33 kDa protein polypeptide together. Bicarbonate can stimulate the reconstitution of WOC.

锰配合物中锰原子与配体中的氮原子配位连接时，能显著恢复电子传递活性和放氧活性；三核锰化合物在重组时对CaCl2的存在非常敏感，我们认为Ca2 与三核锰化合物中的羧基之间存在一定的相互作用，而这种作用有助于锰原子的光配位进而使三核锰化合物易于组装成有活性的水氧化复合物：双核锰化合物MnMn比双核锰化合物MnMn在恢复放氧活性方面更有效；影响锰化合物电子传递能力恢复的因素与影响锰化合物放氧活性恢复的因素不同；在锰蔟重组过程中，氯离子的浓度必须在100mM以上，才能有效进行光重组；最大光重组效率的获得必须有钙离子和33kDa多肽同时存在；碳酸氢根离子促进锰化合物与去锰光系统II的光组装。

Of bidentate ligand DABCO is added exactly as axial ligand to the catalytic system.

以双齿配体DABCO作为轴向配体，双核铁双卟啉催化环己烷羟化反应

In the structures of these complexes, zinc can act as the vertex of the networks in various styles: single atom; dicarboxylate, tricarboxylate or tetracarboxylate bridged binuclear SBU ; and octacarboxylate bridged trinuclear SBU.

在这些配合物的结构中，锌离子可以按多种形式作为网络结构的顶点：单原子，双羧基、三羧基或四羧基桥连的双核锌次级结构单元，八羧基桥连的三核锌次级结构单元，再与配体组装成不同的配位聚合物网络。

Two new binuclear complexes, [TpCu(μ-1, 1-N3)2CuTp](1) and [Tp(superscript *)Co2CoTp(superscript *)](2) Tp=tri (pyrazolyl borate and Tp(superscript *)=3,5-dimethyltri borate, have been synthesized and characterized by IR, UV-vis, ESR, and CV. The crystal structures of both complexes have been determined by X-ray single crystal diffraction.

合成了两个新型的含三吡唑硼配体的双核铜配合物[TpCu(μ-1， 1-N3)2CuTp](1)和双核钴配合物[TpCo2CoTp](2)，并通过IR，UV-vis，EPR，CV，X-射线单晶衍射等手段进行表征。

Part 6 explores the reaction system containing O-phthalate, Mn〓 and α,α'-diimine, and yields six novel complexes 16～20 possessing binuclear and tetranuclear matello-crown aether as well as 1-D linear structures, indicating that O-phthalate is a potentially useful ligand to give manganese species in a discrete form.

研究了邻苯二甲酸/锰/双齿亚胺（2，2'-联吡啶和1，10-邻二氮杂菲）的反应体系，合成出6个新颖的双核、四金属冠醚和一维线性结构的化合物16至20，表明邻苯二甲酸是合成有限核数锰簇的有用配体。

But the electrochemical results show that complexes exhibitcompletely irreversible redox behaviour which is different from thatfound in diiron proteins. 1.3 To obtain the diiron species which are stable to elec-trochemical reduction, a series of new tetranuclear cage ironspecies containing two 〓 cores, with using hexadentatepolybenzimidazole ligands, were synthesized and characterized by vari-ous spectroscopic methods. Their physical properties have been investi-gated. The crystal structures of 〓〓tetrakis (benzimidazol-2-ylmethyl)-1, 4-diaminobutane and 〓,〓-tetrakis ( N-ethylbenzimidazol-2-ylmethyl )-1, 4-diaminobutane were determined. They contain two 〓 cores which arelinked to each other by -〓-chain in the ligands.

1.3为了获得电化学还原稳定双核氧桥联Fe化合物，使用六齿配体合成了一系列含有两个〓单元四核笼状化合物，并用各种谱学手段表征了它们，还研究了它们的物理化学性质确定了〓L=N，N，N'，N'-四(苯骈咪唑基-1，4-丁二胺和〓，〓四-1，4-丁二胺化合物的晶体结构，它们含有两个〓单元，其中两个〓单元是通过配体的〓链桥联成四核笼状结构。

By modifying the synthetic methods in literature,four multinuclear copper complexes,that is,dinuclear[Cu_2(H_2tea)_2(C_6H_5COO)_2]·2H_2O, trinuclear[Cu_3(H_2tea)_2(4-OC_6H_4COO)_2(H_2O)]·4H_2O(designated as Cu_2),tetranuclear O?

通过改进合成方法，从硝酸铜原料和三乙醇胺(标记为H_3tea)配体出发，合成了四种多核铜配合物，即双核铜配合物[Cu_2(H_2tea)_2(C_6H_5COO)_2]·2H_2O，三核铜配合物[Cu_3(H_2tea)_2(4-OC_6H_4COO)_2(H_2O)]·4H_2O(标记为Cu2)，四核铜配合物O？

The catalytic activity of the mono- and bi-nuclear complexes, and unsymetric complex 〓〓 MeNTB =tris ( N-methylbenzimidazol-2-ylmethyl amine and tetranuclear complex 〓L = N, N, N', N'-tetrakis (N-methylbenzimidazol-2-ylmethyl-1,4-diaminobutane for oxidation of hexane was examined. Thedi-iron complexes with one exchangeable monodentate ligand and unsym-metric(μ-carboxylato) diiron complex exhibit high catalytic ac-tivity, while mononuclear Fe complex are inactive.

这些单核、双核化合物、不对称化合物〓-三氨和四核化合物〓四-1，4-丁二胺催化氧化环己烷的催化活性被测试，结果表明含有可交换配体氧桥联双核Fe化合物和不对称双核Fe化合物表现很高的催化活性，而单核的Fe化合物是非催化活性的。

Morphology, and nucleus phase showed that arthrospores are larger than basidiospores in diameter, basidiospores are mononuclear cells, the majority of arthrospores are dikaryocytes and the mononuclear cells are in minority, myceIia are dikaryocytes with typical clamp connection.

显微形态及核相观察表明：节孢子直径略大于担孢子，担孢子为单核细胞，节孢子绝大多数为单核细胞，少数为双核细胞，菌丝体为双核细胞并具有典型的锁状联合结构。

Morphology and nucleus phase showed that arthrospores are larger than basidiospores in diameter, basidiospores are mononuclear cells, the majority of arthrospores are dikaryocytes and the mononuclear cells are in minority, mycelia are dikaryocytes with typical clamp connection.

显微形态及核相观察表明：节孢子直径略大于担孢子，担孢子为单核细胞，节孢子绝大多数为单核细胞，少数为双核细胞，菌丝体为双核细胞并具有典型的锁状联合结构。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新