Wu Yingying, Li Xuefei, Liu Ying, Xiao Ge, Huang Yijiao, Li Yamin, Dang Dongbin, Bai Yan
Key Laboratory of Polyoxometalate Chemistry of Henan Province, School of Chemistry and Chemical Engineering, Henan University Kaifeng 475004 PR China
RSC Adv. 2019 Apr 16;9(21):11932-11938. doi: 10.1039/c9ra01451a. eCollection 2019 Apr 12.
Three novel inorganic-organic hybrid materials [Co(btp)(WO)(HO)] (1), [Cd(btp)(PWO)(HO)·6HO] (2), and [Ag(btp)(PMoO)·1.5HO] (3) (btp = 2,6-bis(1,2,4-triazol-1-yl)pyridine) have been hydrothermally synthesized and characterized by IR spectroscopy, single-crystal X-ray diffraction, powder X-ray diffraction (PXRD), elemental analysis and thermal gravimetric analysis (TGA). The most striking structure feature of compound 1 is a 3D polycatenation framework, interpenetrated by a 2D 4-connected topology layer and a 3D 6-connected topology framework. Compound 2 exhibits a rare meso-helices 3D network with different chiralities crossing coexistence. Compound 3 also holds a 3D framework formed by linking terminal oxygen atoms of [α-PMoO] anions and silver ions in a 2D metal-organic layer. Compound 1 displays antiferromagnetic behavior. The luminescence, electrochemical and photocatalytic properties of compounds 1-3 have also been investigated. Compound 3 exhibits significant electrochemical activity for the reduction of HO while compounds 1 and 2 show efficient photocatalytic activities for the degradation of Rhodamine B (RhB). Furthermore, the three compounds display luminescence behaviors in the solid state.
通过水热法合成了三种新型无机-有机杂化材料[Co(btp)(WO)(HO)] (1)、[Cd(btp)(PWO)(HO)·6HO] (2)和[Ag(btp)(PMoO)·1.5HO] (3)（btp = 2,6-双(1,2,4-三唑-1-基)吡啶），并通过红外光谱、单晶X射线衍射、粉末X射线衍射（PXRD）、元素分析和热重分析（TGA）对其进行了表征。化合物1最显著的结构特征是一个三维多连锁框架，由一个二维4连接拓扑层和一个三维6连接拓扑框架相互贯穿而成。化合物2呈现出一种罕见的具有不同手性交叉共存的中观螺旋三维网络。化合物3还拥有一个通过在二维金属有机层中将[α-PMoO]阴离子的末端氧原子与银离子相连而形成的三维框架。化合物1表现出反铁磁行为。还研究了化合物1-3的发光、电化学和光催化性能。化合物3对HO的还原表现出显著的电化学活性，而化合物1和2对罗丹明B（RhB）的降解表现出高效的光催化活性。此外，这三种化合物在固态下均表现出发光行为。
