氢离子
- 与 氢离子 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This invention discloses a new technology for preparing rear earth ionic doped fiber prefabricated rods with DC-RTA technology in a sol-gel method including preparing sol containing necessary doped ions, coating said sol uniformly on the inner wall of the quartz glass tube and burning it under high temperature to coagulate and vitrify them to a doped layer and repeating the above process to form a fiber prefabricated rod by oxygen and hydrogen flame after the doped layer reaches to a designed thickness and the fiber prefabricated rod can be made to various rare earth ionic doped fibers by an ordinary drawbench technology.
本发明属于光纤制造和光纤激光技术领域,具体公开了一种利用溶胶凝胶方法中的DC-RTA技术制备稀土离子掺杂光纤预制棒的新工艺。该工艺步骤包括预先配制好含有所需掺杂离子的溶胶,将该溶胶均匀涂覆在石英玻璃管的内壁后高温灼烧,使之凝结并玻璃化为一层掺杂层。反复上述涂覆灼烧过程,在掺杂层达到设计厚度后由氢氧焰高温收棒形成光纤预制棒。该方法所得到的光纤预制棒可以通过普通拉丝工艺拉制成各类稀土离子掺杂光纤。
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Structures of Na~+-AD ion-complexes with 1 or 2 H2O molecules were obtained. It was found that H2O can bond with Na~+ in the structure of Na~+-AD to form Na-O van der Waals bond. H2O molecule can also bond with N or O atoms in AD moiety to form H-bonds as N-H…Ow or O…Hw-Ow. The former process takes place more easily. The most stable structures of Na~+-AD ion-complexes with 1 and 2 H2O molecules are W-C7AB and 2W-C7AB, respectively.αB conformer of Na~+-AD can not exist in the presence of 2 H2O molecules.
研究发现水分子可以结合在Na~+-AD络合离子中的Na~+附近形成Na-OW范德华键,也可以与Na~+-AD络合离子骨架结构中电负性较强的N或O原子结合形成N-H…OW或O…HW-OW氢键,相对而言,水分子更容易结合在Na~+-AD络合离子中的Na~+位置,Na~+-AD最稳定的带1个或2个水分子的结构分别为W-C7AB和2W-C7AB,Na~+-AD络合离子的αB构象在2分子水存在的情况下完全消失。
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It is very difficult to eliminate these influence factors completely by conventional treatment. Surface properties and surface treatment of ultrafine red phosphorus and MMT and their interface properties with polymer matrices were studied in this thesis. The results were characterized by GC, FTIR, XRD, DTA, TG, XPS, UV, SEM, TEM and other physical and chemical methods. The main contents are as following: 1. The study of factors influencing ultrafine red phosphorus's invariability and phosphine liberation indicated red phosphorus undergone oxidation and dismutation reaction in air, and trace ion of iron, copper and nickel fastened water absorption and oxidation, in which the effect of copper ion was the most, while aluminium and zinc ion could slow down red phosphorus'oxidation, and silver ion had the best effect on red phosphorus moisture absorption. Inhibitors such as aluminium hydroxide, magnesium hydroxide, organic phenol and ferrous potassuim cyanide had a good effect on reducing red phosphorus moisture absorption and restraining phosphine liberation.
本文围绕纳微米材料的表面处理及其在高聚物基体中的应用这一主题,系统地研究了超细红磷和蒙脱土两种常见材料的表面特性、表面处理方法及其与高聚物基体的界面特性,通过气相色谱、红外光谱、X射线衍射、差热、热重、X射线光电子能谱仪、紫外光谱、扫描电镜、透射电镜等现代分析仪器以及其它物理、化学方法对实验结果进行了表征和分析,全文主要内容如下: 1、对影响超细红磷安定性的因素以及磷化氢的缓释研究表明:红磷在空气中发生缓慢氧化、歧化反应,微量的铜、铁、镍等金属离子增加了它的吸水和氧化速度,其中铜离子的作用最为明显,而铝、锌等离子减慢了红磷的氧化速度,银离子对减少红磷的吸湿性效果最好。
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The compound is an ionic compound consisting of a cation NH(subscript 4 superscript +) and an anion C6H2N3O(subscript 9 superscript -), and it is the mono-substituted salt of TNPG. Since the existence of complicated hydrogen bond networks and electrostatic attraction between NH(subscript 4 superscript +) cation and C6H2N3O(subscript 9 superscript -) canion, the compound possesses better stability and low sensitivity.
该化合物是由一个铵根离子与一个一价的三硝基均苯三酚负离子相结合而形成的离子型化合物,分子中存在的大量氢键及铵根离子与三硝基均苯三酚负离子之间的静电引力使得该化合物具有较高的热稳定性和较低的感度。
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The Molar conductivity indicates that all the complexes are nonelectrolyte. IR spectra show the ligand is bonded with RE ion through its oxygen atom in hydroxyl group of phenol; NO3 is coordinated as a symmetrical chelating bidentate group; the coordinated atoms of DMF and DMSO are the oxygen atoms in carbonyl and sulfoxyl groups. Fluorescence spectrum suggests that the Tb3+complexes have characteristic luminescence and its fluorescence intensity is enhanced after doping with La3+, Gd3+, Y3+, influence of doping ions and neutral ligands have also been discussed.
摩尔电导率表明,所有配合物均为非电解质;红外光谱及核磁共振氢谱表明,对叔丁基杯[8]芳烃通过酚羟基的氧原子与稀土离子配位;硝酸根为双齿螯合配位;DMF和DMSO则分别通过羰基氧和亚砜基氧与稀土离子配位;配合物的荧光光谱表明,所有Tb的配合物具有较强的特征荧光,掺杂La~(3+)、Gd~(3+)、Y~(3+)离子对Tb~(3+)的荧光有较强的增强作用。
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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。
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As the RE ions concentration in groundwater increases or the surface sites on Mn-Fe oxide become saturated, RE ions may sorb via surface precipitation, then surface precipitation become the dominant sorption mechanism.
当离子浓度低时,形成表面络合物是占统治地位的吸附机制;当氧化物/水体系中离子浓度大时,金属离子除在表面形成表面络合物外,也可能形成表面氢氧化物沉淀,直到氧化物表面吸附点位被全部占满,这时表面沉淀则变成主要的吸附机制。
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These experiments suggest that this dihydropyridinesensitive isoform of the mbC α1 subunit is functional in the transfected chromaffin cells and that the number of calcium channels is a limiting component in the secretion from chromaffin cells in culture.
这些实验结果推论这个小鼠脑中的对双氢吡啶敏感的mbC钙离子通道是L-型钙离子通道,并在转化的肾上腺嗜铬细胞中具有功能活性,而且说明钙离子通道的数目对培养的肾上腺嗜铬细胞的分泌是个限制因素。
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In this thesis, a series of complexes based on aromatic multicarboxylic acids have been successfully synthesized in solutions or under hydrothermal conditions. Their structure and properties are investigated.(1) Eight complex compounds have been synthesized and characterized by X-ray single crystal diffractive technology: The eight complexes are listed as following: [Cu242] complex 1 [Cd22(H2O)4]·4H2O complex 2 [Co(H2btc)(H2O)3] complex 3 [Co2(H2O)2]·H2O complex 4 [Ni22(H2O)4] complex 5 [Cu22(H2O)4] complex 6 [Co(H2biim)2(H2O)2](H2btc) complex 7 [Zn(H2biim)2(H2O)2](H2btc) complex 8 The structure of complex 1 is dinuclear complex resulted from weak interactions(0-D chain); complex 2 is 1-D chain stucture result from interactions of water molecules; complex 3、4、5、6 are coordination polymers using hydrothermal synthses, where the first kind ligand is H4btc, the second kind ligand is phen and Co2+、Ni2+、Cu2+ as center ions, respectively. While the coordination enviroment of Co2+ is the same in complex 3, the coordination geometries around the Co atoms in complex 4 are obviously different because of the different reaction conditions. In complex 4, the 1-D chains are connected into 2-D layer through carboxy groups of ligand H4btc. The structures of complex 5、6 are 1-D chain stucture result from interactions of carboxy groups in ligand H4btc. Complex 7、8 are homeomorphy compounds. Either of them are linked to the 3-D chains through intermolecular hydrogen bonds. Each H4btc lose two protons and H2btc2- acts as negative electron balance.
合成了8个结构新颖的配合物,并用X-射线单晶结构分析方法确定了晶体结构,分别为: [Cu242] 配合物1 [Cd22(H2O)4]·4H2O 配合物2 [Co(H2btc)(H2O)3] 配合物3 [Co2(H2O)2]·H2O 配合物4 [Ni22(H2O)4] 配合物5 [Cu22(H2O)4] 配合物6 [Co(H2biim)2(H2O)2](H2btc)配合物7 [Zn(H2biim)2(H2O)2](H2btc)配合物8 配合物1是一个依靠弱作用连接的双核铜结构;配合物2借助水分子形成一维链状结构;配合物3、4、5、6是以H4btc为第一配体、phen为第二配体,通过水热法合成的配合物,其中,Co2+、Ni2+、Cu2+为中心离子;配合物3中的二价钴离子具有相同的配位环境,不同反应条件下得到的配合物4中的二价钴离子存在不同的配位环境,在配合物4中,一维链通过H4btc上的羧基形成一个二维层结构;配合物5、6是借助H4btc上的羧基形成的一维链状结构;配合物7、8属于异质同晶结构,它们的分子通过分子间氢键形成三维网状结构,H4btc上的羧基失去2个质子,作为一个二价负离子起到电荷平衡作用。
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Three kinds of ionic liquid were used to support the acetylacetone at the C3 position directly according to the method indicated above. These synthesized ionic liquid supported acetylacetone catalysts include imidazolium salts ionic liquid supported acetylacetone catalysts, pyridinium salts ionic liquid supported acetylacetone catalysts and ammonium salts ionic liquid supported acetylacetone catalysts. All these catalysts were characterized by ~1H-NMR,~(13)C-NMR, IR and elementary analysis.
采用设计过程中预期能够提高乙酰丙酮金属催化剂催化氧化活性的修饰方式,合成了三类离子液体支载的乙酰丙酮金属催化剂:咪唑型离子液体支载乙酰丙酮金属催化剂、吡啶型离子液体支载乙酰丙酮金属催化剂、胺型离子液体支载乙酰丙酮金属催化剂,并采用核磁共振氢谱、碳谱,红外光谱及元素分析来对这些新型的催化剂进行了表征。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。