کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1339367 | 979703 | 2006 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Cyano-bridged molecular squares: Synthesis and structures of [Ni(cyclen)]2[Pt(CN)4]2 · 6H2O, [Ni(cyclen)]2[Ni(CN)4]2 · 6H2O and [Mn(cyclen)]2[Ni(CN)4]2 · 6H2O Cyano-bridged molecular squares: Synthesis and structures of [Ni(cyclen)]2[Pt(CN)4]2 · 6H2O, [Ni(cyclen)]2[Ni(CN)4]2 · 6H2O and [Mn(cyclen)]2[Ni(CN)4]2 · 6H2O](/preview/png/1339367.png)
Three cyano-bridged complexes [Ni(cyclen)]2[Pt(CN)4]2 · 6H2O (1), [Ni(cyclen)]2[Ni(CN)4]2 · 6H2O (2) and [Mn(cyclen)]2[Ni(CN)4]2 · 6H2O (3) (cyclen is 1,4,7,10-tetraazacyclododecane) have been synthesized and structurally characterized. These complexes have a cyclic tetranuclear structure, the so-called a molecular square, in which two cis-cyano groups of each tetracyanometalate, [M(CN)4]2−, (M = Ni, Pt) are linked to two [M′(cyclen)]2+ (M′=Ni, Mn) units.
Three cyano-bridged molecular squares, [Ni(cyclen)]2[Pt(CN)4]2 · 6H2O (1), [Ni(cyclen)]2[Ni(CN)4]2 · 6H2O (2) and [Mn(cyclen)]2[Ni(CN)4]2 · 6H2O (3) (cyclen = 1,4,7,10-tetraazacyclododecane) have been synthesized and characterized by X-ray crystallography. The magnetic data suggest that there is very weak ferromagnetic intradimer interaction and an even weaker interdimer antiferromagnetic coupling in (1) and (2).Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 25, Issue 5, 27 March 2006, Pages 1256–1262