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Each Ln ion adopts a dodecahedron coordination environment with eight coordinated oxygen atoms from two terminal monodentate coordinated FcC6H4COO- units, two terminal monodentate coordinated H2O molecules, and fourμ_2-η~2--OOCH_4C_6Fc units.

稀土离子都是八配位的三角十二面体构型,其中两个来自单齿配位的FcC6H4COO-,两个来自配位的水分子,四个来自双齿桥联的μ_2-η~2--OOCH_4C_6Fc。

The analysis results of crystal structure shows that the stoichiometric mononuclear Ni complex molecule C(subscript 37.5H45Cl2N10O12Ni was composed of two mononuclear Ni complex units {Ni[C35H33N10O](ClO4)2(CH3OH)2.5(H2O)0.5, Ni coordinated to the ligand to form hexacoordinated distorted octahedral configuration, and the orbital contribution and atomic net charge results has provided a good testimony for the coordinated condition in the crystal structure.

晶体结构分析表明,Ni单核配合物的化学经验式C37.5H45Cl2N10O12Ni的单胞中含有两个配合物分子{Ni[C35H33N10O](ClO4)2(CH3OH)2.5(H2O)0.5},Ni与配位原子形成六配位的扭曲八面体结构。ab从头算所得原子轨道贡献和原子净电荷布居分析结果与晶体结构中的配位情况相符。

In most of cobalt coordination polymers, Co ions are six-coordinated in an octahedral symmetry, whereas five-coordinated ones are seldom.

在大多数的钴配位聚合物中,Co离子是六配位八面体对称性,然而五配位的很少。

N l male gamete transmission of trisomic 2,7,9 had the relation with chromosome behavior at meiosis and with the degression of pollen activity.Besides,n l male gamete fertilization ability and 2n l embryo development ability perhaps could influnce it,too.

6.2号、7号、9号三体n 1雄配子传递率与减数分裂过程中染色体的行为和花粉生活力的降低有关,同时,n 1雄配子受精能力、2n 1胚发育能力可能也会影响n+l雄配子的传递率。

It isconfirmed by ~1H NMR,~(13)C NMR and X-ray crystallographic analysis that complexes 60-63are monopyridine complexes and show distorted square pyramid geometries; complexes 64and 65 are bispyridine complexes and show pseudo-octahedral geometries, where twopyridine ligands are in cis arrangement and trans to the NHC and the benzylidene ligandrespectively, the bond length between ruthenium and pyridine ligand trans to the benzylideneligand is 16 pm longer than the bond length between ruthenium and pyridine ligand trans tothe NHC ligand.

1H NMR、~(13)C NMR及X射线单晶衍射分析证明,配合物60-63是单吡啶衍生物配位的钌卡宾配合物,具有变形的四方锥构型;配合物64、65为双吡啶衍生物配位的钌卡宾配合物,具有变形的八面体构型,其中两个顺式配位的吡啶衍生物分别处于氮杂环卡宾和苯亚甲基的反位,处于苯亚甲基反位的吡啶衍生物对应的钌-氮键长要比处于氮杂环卡宾反位的长出16 pm。

Mn(H_3biim)_2_2Cl_2 and Cd(H_3biim)_2_2Cl_2 have been synthesized from H_2biim, their structures were determined by X-ray crystallography. The two complexes have similar structures and both are neutral compounds. One N atom in H_2biim is protonated, forming a H3biim+ cation. The later is an unidentate ligand, the central metal, Cd or Mn is six coordinated and adopts a distorted octahedral environment.

合成了联咪唑锰配合物Mn(H_3biim)_2_2Cl_2和联咪唑镉配合物Cd(H_3biim)_2_2Cl_2,晶体结构表明这两个配合物结构相似,均为中性化合物,联咪唑的一个氮原子被质子化,形成一价阳离子(H_3biim~+),它采取单齿配位,中心Mn原子是六配位,其配位环境为畸变的八面体。

61Ppm, REE distribution patterns of apatite standarded by NASA are classified into two types: The one is concave,"hat-shaped" REE pattern which is slightly enriched in intermediate REE and has a weak or even wanting Ce anomaly. To which, the sandy phosphorite of Jile is representative; the rest REE pattern is shown by more or less complete curve, although distinct Ce negative anomaly or weak Ce positive anomaly is shown up well. The stromatolitic apatite is the representative of this type.

其稀土元素北美页岩标准化配分型式主要分为两类:一类为中稀土略显富集的帽状形态的稀土元素配分型式,微弱的铈负异常或无铈异常,以极乐矿段砂屑磷块岩样品最为典型;另一类为轻稀土、中稀土和重稀土自然分异的三段弧形折线衔接而成的稀土元素配分型式,铈负异常较明显或微弱的铈正异常,以叠层石柱体磷灰石最典型。

Quantitative analysis of the EXAFS spectra showed that the microscopic structure of Znon anatase TiO2 is four coordinate complex, and there are at least two types of bonding based on the average Ti-Zn distances in the second sphere. Two different geometry configurations of single-corner and double-corner for adsorption on the (101) surface cluster were calculated using DFT method.

EXAFS结果表明,Zn在吸附时由自由水合状态下的Zn-O六配位八面体结构向四配位四面体结构转化,中心Zn原子的第二配位层存在两种不同的Zn-Ti距离(R1=0.371和R2=0.332nm)。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数,用非线性分析程序对体预应力筋混凝土梁进行了参数分析,依据分析结果提出了以综合配筋指标和预应力度为参数的等效变形区长度的计算公式,进而提出了基于等效变形区长度的极限挠度计算公式;体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式;依据试验和非线性数值计算结果,将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁,推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数,用非线性分析程序对体预应力筋混凝土梁进行了参数分析,依据分析结果提出了以综合配筋指标和预应力度为参数的等活动房效变形区长度的计算公式,进而提出了基于等效变形区长度的极限挠度计算公式;体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式;依据试验和非线性数值计算结果,将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁,推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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