氢离子

The other Cu were six coordinated H2O to form the octahedral geometry coordinated cation.

阴阳离子之间除了通过静电力相互作用外，还存在氢键作用。

Whenpyridine was used as reductive decomposing agent, the expecting cholest-4-en-3,6-dione-22-al was obtained. However, when Zn/HOAc was used to decomposethe ozonide, C-4,5 double bond was further reduced to give cholest-3,6-dione-22-al as main product. 2 For the side-chain construction of compound (1), the solid-liquid phase-transfer Wittig reaction was used. When (3-methyl-2-oxobutyl)-triphenylarsonium bromide was used as reagent, the reaction can be carried out inmild reaction condition and the yield is higher than that when phosphorane wasused.

但使用Zn／HOAc作为分解剂时，却得到其氢化产物胆甾-3， 6-二酮-22-醛；2在甾体支链引入过程中，采用固-液相转移Wittig反应的方法，用(3-甲基)-2-氧丁基三苯基溴化胂作为试剂，反应在非常温和的条件下便可完成，而且产率比传统采用膦烷的方法更高；3在对某些甾酮化合物的选择性还原反应研究时，发现在〓还原体系中，当加入某些金属离子后，反应有更好的区域选择性和立体选择性。

Some interactions have been found between ions of sodium perchlorate and water molecules.

无机盐高氯酸钠的加入破坏了水分子的氢键结构，阴阳离子分别与水发生相互作用。

Objective: To compare the reliability of phenol red colormetric, electrodes and enzymatic methods in detecting serum bicarbonate.

目的 比较酚红比色法、离子选择电极法、酶法三种全自动测定血清碳酸氢根方法的可靠性及临床应用，为临床方法的选择和实验结果的评价提供理论依据。

Results: In the comparison between phenol red colormetric method and the other methods, the corrlative coefficency was 0.9822 and 0.9813, and the bias was 1.64% and 1.59% at 15～45 mmol/L.

结果 酚红比色法与离子选择性电极法、酶法比较，相关系数分别为0.9822和0.9813，碳酸氢根测定浓度在15～45 mmol/L时的预期相对偏差均值分别为1.64%和1.59%。

The picrate anions are uncoordinated, and bound together by electrostatic attraction and hydrogen bonds.

苦味酸根离子没有形成配合物，它们是通过静电和氢键作用力排列在一起的。

The distribution of protium and deuterium in zirconium hydride films are analyzed by using depth profiles and images of SIMS.

电阻蒸发制备的锆膜氢化后，利用二次离子质谱对其进行了深度剖析与成像分析，结果表明氕与氘在锆膜深度分布均匀，在过渡层中呈递减分布，并消失于过渡层与衬底的交界处。

The integrated analytical results show that the novel ligand coexists in ketoform and enolform structures under the measuring conditions, the ketoform structure may change into the enolform structure during the coordination and bonds with the central ion by two O atoms of the enolized hydroxyl group of pyrazolone ring and H2O and the N atom of the imine group and the N atom containing H of benzimidazole ring by losing the proton. And the coordination number of these complexes is four.

综合各种分析结果显示：配体在测试条件下以酮式和烯醇式结构共存，配位时酮式可能转化为烯醇式结构，按去质子的方式以吡唑啉酮环羟基和H2O上的两个O原子以及亚胺基上的N原子和苯并咪唑环上的含氢N原子与中心离子成键，配合物的配位数为4。

It is well reported that human telomeric DNA sequence [AGGG3] can form a well-defined quadruplex structure with the hydrogen bond between guanine bases in the appearance of K+ and Na+. It was reported that the formation and stability of the structure is meaningful for both gene regulation and apoptosis.

据文献报道，人类染色体端粒中的重复序列[AGGG3]可以在钠、钾离子存在的条件下通过四个G碱基间形成平面环状氢键从而折叠成四链结构G-quadruplex，此结构的形成与稳定对基因调控以及细胞的凋亡有着重要意义。

Ritz variation method was used to find the numerical relation between the energy near the ground-state of the hydrogen molecular ion H 2 + and the changes of the variation parameter and the bond length,the computation formula of bond length and ground-state energy for H 2 + was also obtained by means of the method of parabolic interpolation .

用Ritz变分法求出了氢分子离子H2 +基态能量附近的能量随变分参数和分子键长变化的数值关系，并用抛物线插值法获得了H2 +键长和基态能量的值及其计算公式，比文献 [1，2 ]更接近于实验值。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。