Wen Weiyang, Wang Yanqi, Pan Tianyu, Hu Qianqian, Xiao Huiping, Wang Nannan, Li Xiaoqi, Li Xinxiong, Hu Bing, Huang Xiaoying
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
College of Chemistry, Fuzhou University, Fuzhou 350108, China.
Molecules. 2024 Jan 25;29(3):591. doi: 10.3390/molecules29030591.
Two types of isostructural iron-cobalt/nickel-antimony-oxo tartrate cluster-based compounds, namely (HO)(MeNH)[(HO)][FeSb(-O)(-O)(tta)]·6HO ( = Co (); Ni ()), H[CoFeFe(HO)SbFe(-O)(-O)Sb(-O)(tta)]·2HO () and H[NiFeFe(HO)SbFe(-O)(-O)Sb(-O)(tta)]·2HO () (Htta = tartaric acid) were synthesized via simple solvothermal reactions. All the clusters in the structures adopt sandwich configurations, that is, bilayer sandwich configuration in and and monolayer sandwich configuration in and . Interestingly, the monolayer sandwiched compounds and represent rare examples of cluster-based compounds containing mixed-valence Sb(III, V), whose center of the intermediate layer is the co-occupied [FeSb]. This is different from that of previously reported sandwich-type antimony-oxo clusters in which the center position is either occupied by a transition metal ion or a Sb(V) alone. Thus, the discovery of title compounds and makes the evolution of center metal ion more complete, that is, from , Sb to Sb. All the title compounds were fully characterized, and the photocatalysis, proton conduction and magnetism of compounds and were studied.
通过简单的溶剂热反应合成了两种同构的基于铁钴/镍锑氧代酒石酸盐簇的化合物，即(HO)(MeNH)[(HO)][FeSb(-O)(-O)(tta)]·6HO（ = Co ()；Ni ()）、H[CoFeFe(HO)SbFe(-O)(-O)Sb(-O)(tta)]·2HO () 和 H[NiFeFe(HO)SbFe(-O)(-O)Sb(-O)(tta)]·2HO ()（Htta = 酒石酸）。结构中的所有簇均采用夹心构型，即在 和 中为双层夹心构型，在 和 中为单层夹心构型。有趣的是，单层夹心化合物 和 是含混合价态 Sb(III, V) 的基于簇的化合物的罕见例子，其中间层的中心是共同占据的 [FeSb]。这与先前报道的夹心型锑氧簇不同，在先前报道的夹心型锑氧簇中，中心位置要么被过渡金属离子占据，要么仅被 Sb(V) 占据。因此，标题化合物 和 的发现使中心金属离子的演化更加完整，即从 、Sb 到 Sb。对所有标题化合物进行了全面表征，并研究了化合物 和 的光催化、质子传导和磁性。
