A Ru(II) complex mediated synthesis of various N,N-dimethyl and N-monomethyl amines from organic azides using methanol as a methylating agent is reported. This methodology was successfully applied for a one-pot reaction of bromide derivatives and sodium azide in methanol. Notably, by controlling the reaction time several N-monomethylated and N,N-dimethylated amines were synthesized selectively. The
Improved redox couple for electrochemical and optoelectronic devices
申请人:Ecole Polytechnique Fédérale de Lausanne (EPFL)
公开号:EP2492277A1
公开(公告)日:2012-08-29
The present invention provides an improved redox couple for electrochemical and optoelectronic devices. The redox couple is based on a complex of a first row transition metal, said complex containing at least one mono-, bi-, or tridentate ligand comprising a substituted or unsubstituted ring or ring system comprising a five-membered N-containing heteroring and/or a six-membered ring comprising at least two heteroatoms, at least one of which being a nitrogen atom, said five- or six-membered heteroring, respectively, comprising at least one double bond. The invention also relates to electrolytes and to the devices containing the complex, and to the use of the complex as a redox couple.
Intermolecular interaction and magnetic coupling mechanism of a mixed-valence Cu<sup>II</sup>Cu<sup>I</sup> tetranuclear complex with iodide bridge
作者:Hong-Nan Li、Rui-Zheng Wei、Yan-Hui Chi、Wei Wei、Hua Du、Shi-Guo Zhang、Jing-Min Shi
DOI:10.1080/00958972.2013.825370
日期:2013.9.1
In the crystal, there is a slipped π–π stacking between adjacent CuII complexes, which resulted in the formation of the 1-D chain along the c axis. The fitting for the variable-temperature magnetic susceptibility data gave magneticcoupling constant 2J = −1.16 cm−1 and it may be ascribed to the intermolecular π–π magneticcoupling pathway.
四核 CuICuII 混合氧化态复合物,[CuII 2(μ-I)2CuI 2(μ-I)2(phenP)2I2] (phenPE: 2-(1H-pyrazol-1-yl)-1,10-phenanthroline) , 已制备,其晶体结构由 X 射线晶体学确定。在配合物中,CuII是一个扭曲的四方金字塔,CuI是一个扭曲的三角平面配位环境;CuII 和 CuI 被碘化物桥接。很少形成 CuII-碘化物键,CuII 和 CuI 很少被碘化物桥接。在晶体中,相邻的 CuII 配合物之间存在滑动的 π-π 堆积,导致沿 c 轴形成一维链。对变温磁化率数据的拟合得到磁耦合常数 2J = -1.16 cm-1,这可能归因于分子间 π-π 磁耦合路径。