二元化合物

Magnesium aluminate spinel is a unique stable compound in MgO-Al2O3 system and well-known material due to its excellent properties. It has been widely used in various applications.

中文摘要：镁铝尖晶石是MgO-Al2O3系统中唯一稳定的二元化合物，是性能优良的耐火材料，广泛应用在各种领域。

Useful information on Auger recombination in some important binary compounds.

对于一些重要的二元化合物的欧杰再结合的有用资讯。

A binary compound of bromine with another element, such as silver .

溴化物由溴和另一元素构成的二元化合物，如银

In this dissertation, Al-Cu-Mn ternary alloy ultrafine powders with 99% relative content of AlCu〓Mn compound phase were prepared. But only binary compound phases of Al-Cu and Al-Cr systems formed in the Al-Cu-Cr ternary alloy ultrafine powders, without any ternary compound phase.

本研究在蒸发Al-Cu-Mn合金时，制得了AlCu〓Mn相对含量达到99％的合金超微粉末；在蒸发Al-Cu-Cr合金时，制备的超微粉末中只生成了Al-Cr和Al-Cu二元化合物相，无Al-Cu-Cr三元化合物合金相生成。

The interactions of the model compound (FL4) or diad composed of fluorescein and 2-methyl-anthraquinone and TiO_2 colloid have been examined by absorption, fluorescence spectroscopy and fluorescence lifetime.

测定了以荧光素为光敏剂的电子给体-受体二元化合物荧光素蒽醌甲酯及模型化合物荧光素丁酯（FL4）在溶液中和在二氧化钛（TiO_2）胶体中的吸收光谱、荧光光谱、荧光寿命等。

The behaviors of supramolecular self-assembly of cabboxyl porphyrin-anthraquinone systems, carboxyl porphyrin zinc-copper systems, porphyrinatozinc-imidazolyl tailed porphyrinatomanganese systems, porphyrinatozinc-anthraquinone hybrids/imidazolyl tailed porphyrinatomanganese systems and porphyrinatozinc-fluorescein hybrids/imidazolyl tailed porphyrinatomanganese systems driven by hydrogen-bonding or coordination-bonding have been studied.

设计、合成了多种新型羧基卟啉、卟啉-蒽醌二元化合物和卟啉-荧光素二元化合物，研究了氢键或配位键驱动的羧基卟啉-蒽醌、羧基卟啉锌-羧基卟啉铜、锌卟啉-咪唑基尾式卟啉锰二元超分子，卟啉-蒽醌二元化合物与咪唑基尾式卟啉锰三元超分子的构建和光诱导电子转移性质。

We generalized the above model of the point defect to Cd〓Zn〓Te, which was taken as ideal cation substituted pseudobinary alloy.

把二元化合物CdTe的点缺陷模型加以推广，建立了三元化合物Cd〓Zn〓Te的点缺陷模型。

In the investigatedcomposition region,two ternary phase:Nd3(Fe1-xVx)29(x=0.066-0.095)and Nd(Fe1-xVx)12(x=0.125-0.167),one pseudobinary phase:Nd2(Fe1-xVx)17(x=0.000-0.066)areobserved at 1323K.

在1323K温度时观察到三个化合物，其中有两个三元化合物：Nd3(Fe1-xVx)29(x＝0.066-0.095)和Nd(Fe1-xVx)12(x＝0.125-0.167)，和一个二元化合物固溶体Nd2(Fe1-xVx)17(x＝0.00-0.067)。

The photosynthetic model compounds include dyads, compounds more than two segments and non-covalently linked supramolecular systems.

光合作用模型化合物包括二元化合物、多元化合物和非共价键相连的超分子体系，超分子体系的光化学和光物理是近几年该领域的研究热点。

Melting point 3410 ℃, boiling point 560 ℃, relative density of 1935, F the external electronic structure of 5d46s2, in the chemical reaction time is very easy to lose 1-6 electronic, but also can get 1-2 electronic, so oxidation number of 0,± 1,± 2, 3, 4 , 5 and 6, with 6 price of the most stable compounds, such as WO3 does not dissolve in water, the air will form in the tungsten trioxide thin protective layer of tungsten, tungsten with fluorine at room temperature, chemical combination, red hot when there is no moisture and Bromine iodide together, red hot when you can and water reaction WO3, at room temperature reaction of tungsten with aqua regia, but the hot concentrated hydrochloric acid and sulfuric acid can only be played with its weak response, but molten nitrate, nitrite, too Hydrogen peroxide, sulfur steam, steam and other phosphorus can play intense reaction, high temperature can not be carbon, boron and silicon reaction of binary compounds, widely used in industrial tungsten steel and tungsten carbide, pure tungsten filament is used to the system, and X-ray tube Tube heating components, semiconductor components can be prepared tungsten silicide, tungsten industrial production is white or black tungsten ore tungsten ore refining.

熔点3410℃，沸点560℃，相对密度1935，F外围电子结构为5d46s2，在化学反应时很容易丢掉1—6个电子，也能得到1—2个电子，所以氧化数为0、±1、±2、＋3、＋4、＋5和＋6，以＋6价化合物最稳定，如WO3不溶于水，空气中的钨会形成薄层三氧化钨保护层，钨能与氟在室温下化合，红热并无潮气时能与溴、碘化合，红热时还能和水反应生成WO3，室温下钨可与王水反应，但热的浓盐酸和硫酸只能与其起微弱反应，但对熔融的硝酸盐、亚硝酸盐、过氧化氢、硫蒸汽、磷蒸汽等能起激烈反应，高温下不能与碳、硼和硅反应生成二元化合物，工业上广泛使用钨钢和碳化钨，纯钨用来制灯丝、电子管和X射线管的发热元件，硅化钨可制半导体元件，钨工业生产是将白钨矿石或黑钨矿石精炼。

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。