Bis- and tris(aminoxyl) radicals and di(4-pyridyl)diazomethane form crystalline complexes with extended structures upon reaction with [M(hfac)2] (M=MnII or CuII, and hfac=hexafluoroacetylacetonate). Organic 2p and metal 3d spins in these complexes order at 3.4–46 K depending on the dimensions of the extended structures and the magnitude of exchange coupling between the adjacent spins. In the crystals of one-dimensional systems, the polymeric chains are isotactic in that free radical or precursor ligands and/or metal centres have the same chirality along any given chain. The polymeric chains are syndiotactic and cross link to form two-dimensional honeycomb or three-dimensional crossed parallel networks.
双(
氨基氧)和三(
氨基氧)自由基以及二(4-
吡啶基)
重氮甲烷与 [M(hfac)2](M=
锰Ⅱ或
铜Ⅱ,hfac=
六氟乙酰丙酮)反应后形成具有扩展结构的结晶络合物。这些复合物中的有机 2p 和
金属 3d 自旋在 3.4-46 K 下有序,这取决于扩展结构的尺寸和相邻自旋之间交换耦合的大小。在一维系统的晶体中,聚合物链是同向的,即自由基或前体
配体和/或
金属中心在任何给定的链上都具有相同的手性。聚合链是双向的,交叉连接形成二维蜂巢或三维交叉平行网络。