Bilyachenko Alexey N, Yalymov Alexey, Dronova Marina, Korlyukov Alexander A, Vologzhanina Anna V, Es'kova Marina A, Long Jérôme, Larionova Joulia, Guari Yannick, Dorovatovskii Pavel V, Shubina Elena S, Levitsky Mikhail M
A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences , Vavilov str., 28, 119991 Moscow, Russia.
Peoples' Friendship University of Russia , Miklukho-Maklay Str., 6, 117198 Moscow, Russia.
Inorg Chem. 2017 Nov 6;56(21):12751-12763. doi: 10.1021/acs.inorgchem.7b01436.
A new family of bi-, tetra-, penta-, and hexanickel cagelike phenylsilsesquioxanes 1-6 was obtained by self-assembly and transmetalation procedures. Their crystal structures were established by single-crystal X-ray analysis, and features of crystal packing relevant to the network formation were studied by a topological analysis. Compounds 1, 2, and 4 are isolated architectures, while 3, 5, and 6 present extended 1D and 3D networks. The investigation of magnetic properties revealed the presence of ferro- (1 and 3-5) or antiferromagnetic (2 and 6) interactions between Ni(II) ions, giving rise in the most cases (1, 2, and 4-6) to the presence of a slow relaxation of the magnetization, which can originate from the spin frustration.
通过自组装和金属转移过程获得了一个由双镍、四镍、五镍和六镍笼状苯基倍半硅氧烷组成的新家族1-6。通过单晶X射线分析确定了它们的晶体结构，并通过拓扑分析研究了与网络形成相关的晶体堆积特征。化合物1、2和4是孤立结构，而3、5和6呈现出扩展的一维和三维网络。磁性研究表明，Ni(II)离子之间存在铁磁（1和3-5）或反铁磁（2和6）相互作用，在大多数情况下（1、2和4-6）导致磁化强度缓慢弛豫的出现，这可能源于自旋阻挫。
