The mechanism of cycloaddition reaction between singlet state H2Ge=Ge: and acetaldehyde has been investigated with the MP2/6-311++G** method. From the potential
The connections between the building units of meta-stable lattice were generally considered to be easily disturbed during the doping process, causing serious hi
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A microsphere discrete structure of CoNi2S4 was prepared through one-pot hydrothermal reaction and characterized by FTIR, XRD and SEM. The as-prepared CoNi2S4 s
Two lanthanide coordination polymers, [Eu(HL)(L)(H_2O)2]n(1) and [Tb(H_(0.5)L)_2]_n(2), based on bifunctional 5-(1H-imidazol-1-yl) isophthalic acid(H_2L), are h
In this paper,we report for the first time the controlled synthesis of lanthanide ion (Ln3+)-doped tetragonal-phase Na3ZrF7 nanocrystals (NCs)via a high-tempera
由团中央、信息产业部、文化部、全国学联、中央电视台等单位共同主办,北京师范大学和和讯信息科技有限公司共同承办的“和讯杯”第三届中国大学生电脑网络大赛4月29日启动。
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Reactions of piperidine derivatives 4-(aminomethyl)piperidine(4-AMPD) and 1-methylpiperidin-4-amine(1-MPDA) with semi-conductive metal iodine SbI3 and PbI2 in c
1999年3月18日下午,翠宫饭店。明政厅里,“联想科技99媒体恳谈会”在热烈的气氛中进行。从郭为到刘志军、林杨、肖方晨、于立山,联想科技的几乎所有重量级人物全部到场。会议