By using two kinds of flexible bis(triazole) ligands 1,3-bis(1,2,4-triazol-1-y1)propane (btp) and 1,6-bis(1,2,4-triazol-1-y1)hexane (btx), four compounds based on octamolybdate and Keggin anions were obtained, respectively, under hydrothermal conditions, namely [Cu(btp) 2 (H 2 O)( α -Mo 8 O 26 ) 1/2 ]·H 2 O ( 1 ), [Cu 2 (btx) 4 ( β -Mo 8 O 26 )] ( 2 ), [Ag 3 (btp) 2 (PW 12 O 40 )] ( 3 ) and [Cd(btx) 3 (SiW 12 O 40 )]·H 2 btx ( 4 ). These compounds were structurally characterized by physico-chemical and spectroscopic methods. In compound 1 , there is a metal–organic layer containing square tetra-nuclear cycles. Two layers cover [Mo 8 O 26 ] 4− anions to form a new layer. Adjacent new layers penetrate to build a three-dimensional (3D) framework. Compound 2 contains a rhomboid tetra-nuclear cycle to surround a Mo1-containing anion. These cycles are connected by btx ligands to form a two-dimensional (2D) layer. Adjacent layers are connected by Mo5-containing anions, and a 3D structure is constructed. Compound 3 contains bi-nuclear cycles which are further linked by anions and Ag2 atoms to form a 2D layer. The metal–organic chains in compound 4 are linked by Keggin anions to form a 2D structure. We also studied the photocatalytic and electrochemical behavior of compounds 1 – 4 .

中文翻译：

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由具有不同间隔基的柔性双（三唑）配体构建的四种基于八钼酸盐和 Keggin 的化合物

通过使用两种灵活的双（三唑）配体 1,3-双（1,2,4-三唑-1-y1）丙烷（btp）和 1,6-双（1,2,4-三唑-1- y1)己烷(btx)，在水热条件下分别得到了四种基于八钼酸盐和Keggin阴离子的化合物，即[Cu(btp) 2 (H 2 O)(α -Mo 8 O 26 ) 1/2 ]·H 2 O ( 1 ), [Cu 2 (btx) 4 ( β -Mo 8 O 26 )] ( 2 ), [Ag 3 (btp) 2 (PW 12 O 40 )] ( 3 )和[Cd(btx) 3 (SiW 12 O 40 )]·H 2 btx ( 4 )。通过物理化学和光谱方法对这些化合物进行结构表征。在化合物 1 中，有一个包含方形四核循环的金属有机层。两层覆盖[Mo 8 O 26 ] 4- 阴离子以形成新层。相邻的新层渗透以构建三维（3D）框架。化合物 2 包含一个菱形四核环来包围含 Mo1 的阴离子。这些循环由 btx 配体连接以形成二维 (2D) 层。相邻层通过含 Mo5 的阴离子连接，构建 3D 结构。化合物 3 包含双核循环，它们通过阴离子和 Ag2 原子进一步连接以形成 2D 层。化合物 4 中的金属有机链通过 Keggin 阴离子连接形成二维结构。我们还研究了化合物 1-4 的光催化和电化学行为。