Abstract

Interaction of scandium(III) salts with 2,2′-bipyridine-4,4′-dicarboxylic and terephthalic acids under solvothermal conditions yields two novel metal-organic frameworks [Sc₂(HCOO)₂(OH)₂(bpydc)]·2H₂O (1) and [Sc(HCOO)(bdc)] (2), where bpydc^2– is 2,2′-bipyridine-4,4′-dicarboxylate, bdc^2– is terephthalate, HCOO^– is formate. The crystal structures of compounds 1 and 2 are determined by single-crystal XRD. Both compounds contain formate anions as additional linkers and have a dense structure. The chemical composition and phase purity of studied compounds are confirmed by powder XRD, TG analysis, elemental analysis, and IR spectroscopy.

中文翻译：

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基于Sc(III)和两种配体的致密金属有机框架的晶体结构

摘要

钪 (III) 盐与 2,2'-联吡啶-4,4'-二羧酸和对苯二甲酸在溶剂热条件下的相互作用产生两种新型金属有机骨架 [Sc ₂ (HCOO) ₂ (OH) ₂ (bpydc)]· 2H ₂ O ( 1 ) 和 [Sc(HCOO)(bdc)] ( 2 )，其中 bpydc ^2-是 2,2'- bipyridine -4,4'-二羧酸盐，bdc ^2-是对苯二甲酸盐，HCOO ^-是甲酸盐。化合物1和2的晶体结构由单晶 XRD 测定。这两种化合物都含有甲酸阴离子作为额外的接头并具有致密的结构。所研究化合物的化学成分和相纯度通过粉末 XRD、TG 分析、元素分析和红外光谱证实。