Diverse Magnetic Chains in Inorganic Compounds,Accounts of Materials Research

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Diverse Magnetic Chains in Inorganic Compounds
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2024-06-10 , DOI: 10.1021/accountsmr.4c00083
Larisa V. Shvanskaya _{1,

2} , Alexander N. Vasiliev _{1,

2}

Affiliation

In both inorganic and metal–organic compounds, transition metals surrounded by ligands form regular or distorted polyhedra, which can be either isolated or interconnected. Distortion of the polyhedron can be caused by the degeneracy in the population of atomic or molecular orbitals, which can be removed by the cooperative Jahn–Teller effect. This effect is often accompanied by the formation of low-dimensional magnetic structures, of which we will consider only chain, or quasi-one-dimensional, magnetic compounds variety. Magnetic chains are formed when transition metal polyhedra bond through a vertex, edge, or face. Moreover, the magnetic entities can be coupled through various nonmagnetic units like NO₃, SiO₄, PnO₃ or PnO₄, ChO₃ or ChO₄, where Pn is the pnictide and Ch is the chalcogen. In most cases, the local environment of the transition metal is represented by oxygen and/or halogens. The prevailing number of chain systems is based on 3d transition metals, albeit 4d and 5d systems attract more and more attention. Mixed 3d–4f single chain magnets became popular objects in metal–organic chemistry.

中文翻译：

无机化合物中的多种磁链

在无机和金属有机化合物中，被配体包围的过渡金属形成规则或扭曲的多面体，这些多面体可以是孤立的，也可以是互连的。多面体的扭曲可能是由原子或分子轨道群的简并性引起的，而这种扭曲可以通过协同杨-泰勒效应消除。这种效应通常伴随着低维磁性结构的形成，其中我们仅考虑链状或准一维磁性化合物的种类。当过渡金属多面体通过顶点、边或面结合时，就会形成磁链。此外，磁性实体可以通过各种非磁性单元耦合，如NO ₃ 、SiO ₄ 、 Pn O ₃或Pn O ₄ 、 Ch O ₃或Ch O ₄ ，其中Pn是磷属元素， Ch是硫属元素。在大多数情况下，过渡金属的局部环境由氧和/或卤素代表。目前流行的链系统是基于 3维过渡金属的，尽管 4维和 5维系统吸引了越来越多的关注。混合 3 d –4 f单链磁体成为金属有机化学中的热门对象。

更新日期：2024-06-10

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