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Two copper complexes with a new multi-sulfur 1,2-dithiolene ligand, C[Cu(cddt)2] (C=tetrabutylammoni-um, n-Bu4N+; tetraphenylphosphonium, Ph4P+; cddt = 4a, 6, 7, 7a-5H-cyclopenta[b]-1,4-dithiin-2,3 dithi-olate) have been synthesized and characterized by electrochemical studies, IR, EA, etc. The structure of (Ph4P)[Cu(cddt)2] was determined by single crystal X-ray analysis. The complex was crystallized in the triclinic, space group P1 with the cell dimensions a=10.460(2)?, b=13.000(3)?,c=16.270(3)?, α=86.68(3)°,β= 71.92(3)°,γ=66.66(3)° and Z=2. R1=0.0548, wR2=0.1358 for 6786 independent reflections. The four S atoms surround the Cu atom [CuS4] core is a square-planar environment. 相似文献
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The Copper(Ⅰ) supramolecular complexes of 4,5-bis(methylthio)-1,3-dithiole-2-thione (C5H6S5), [Cu(C5H6S5)(SCN)]∞ 1 and [Cu(C5H6S5)I]∞ 2, have been prepared and characterized. X-ray structure analysis for complex 1 reveals that the infinite chain structure with polymeric stairs of different lengths is formed through the coordination mode (μ3) of the thiocyanate bridges. The shorter interchain S…S contacts give rise to a three-dimensional network structure. CCDC: 215668. 相似文献
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为提高复杂数据通信网络的稳定性,对复杂数据通信网络的风险评估进行相应研究.分析了复杂数据网络发展状况及其结构特点.分析了风险因素关系,确定风险评估流程,在风险评估模型的基础上,详细研究了非贯序蒙特卡罗模拟法和状态枚举法,并对上述风险评估方法进行了相应仿真实验.实验表明:采用的评估方法可以有效地评估复杂数据通信网络风险;仿真计算所得风险值分布符合风险趋势曲线. 相似文献
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交流异步电动机也是各类电动机中应用曩广.需求量最大的一种。据统计,全球每年50%电量都是三相异步电机消耗的,在我国,这个比例可以达到6O%-70%。因此,研究三相异步电机的节能技术,对降低我固能耗,实现低碳环保生活具有重要的意义。 相似文献
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利率市场化就是将利率的决定权交给利率市场。具体的说就是将金融产品的定价权交给商业银行和金融机构,存贷款利率由商业银行和金融机构自主决定,中央银行通过调控货币市场利率,间接影响商业银行和金融机构的利率水平。 相似文献