Four Dysprosium(III) Compounds Based On 1H‐Benzimidazole‐5,6‐dicarboxylic Acid via Hydrothermal Synthesis

Abstract

AbstractFour compounds [Dy(H2bidc)(Hbidc)(H2O)8]·8H2O (1), {[Dy(Hbidc)(H2O)2(Htzac)]·3H2O}n (2), [Dy(C2O4)0.5(Hbidc)(H2O)3]n (3), {[Dy2(Hbidc)2(H2O)(SO4)]·H2O}n (4) (H3bidc = 1H‐benzimidazole‐5,6‐dicarboxylic acid, H2tzac = 1H‐3‐amino‐5‐carboxy‐1,2,4‐triazole) were synthesized with hydrothermal synthesis and structurally characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction. X‐ray analysis revealed that the four coordination compounds have different structures: Compound 1 is a three dimensional supermolecular structure joined by hydrogen bonding interactions based upon dinuclear units. Compound 2 is a three dimensional supermolecular structure combined by hydrogen‐bonding interactions based upon one dimensional coordination chain including a T4(1)‐type water cluster chain. The structure of compound 3 is built of two dimensional (3,6)‐connected kgd‐type (43)2(46.66.83) layers with a right‐handed and a left‐handed helical chain, which are further extended into three dimensional supramolecular architecture by hydrogen bonding interactions. Compound 4 displays a three dimensional framework containing a dinuclear dysprosium building unit with a (3,8)‐connected (4.52)2(42.510.612.7.83) topological framework. In addition, the photoluminescent property of compound 3 was investigated.