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Two 1D Silver(I) Coordination Polymers with 1,3-Bis(4-pyridyl) propane and Aromatic Carboxylate Anions: Synthesis, Structure and Photocatalytic Behavior
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-09-08 , DOI: 10.1002/slct.202102197
Somnath Kulovi 1 , Laxmikanta Nandi 1 , Horst Puschmann 2 , Ennio Zangrando 3 , Sudipta Dalai 1
Affiliation  

Two coordination polymers, {[Ag(bpp)]6(tma)2.28(H2O)}n (1) and {[Ag4(bpp)4(bda)2].12(H2O)}n (2) (where bpp=1,3-bis(4-pyridyl) propane, H3tma=trimesic acid, H2bda=1,3-benzenediacetic acid), have been synthesized and structurally characterized. In both the compounds the metal ions are connected by bridging dipyridine ligands to form cationic undulated 1D coordination polymers [Ag(bpp)]n counterbalanced by the organic anions. However, in 2 the bda anions participate in metal coordination connecting the polymers in pair. It is worth of note that six and four crystallographic independent Ag(bpp) units are present in the unit cell of 1 and 2, respectively, a feature likely affected by the conformational freedom of bpp ligands, although experimental conditions, solvent and packing effect cannot be ruled out. In both the compounds the crystal packing shows an extensive network of H-bonds realized by the numerous water molecules and the anionic organic species. The band gap energies of 1 and 2 were calculated in order to explain their activity towards the degradation of toxic methylene blue dye, and compound 1 was found to be more efficient for this purpose.

中文翻译:

两种具有 1,3-双(4-吡啶基)丙烷和芳族羧酸根阴离子的一维银(I)配位聚合物:合成、结构和光催化行为

两种配位聚合物,{[Ag(bpp)] 6 (tma) 2 .28(H 2 O)} n ( 1 ) 和 {[Ag 4 (bpp) 4 (bda) 2 ].12(H 2 O)} n ( 2 )(其中bpp=1,3-双(4-吡啶基)丙烷,H 3 tma=均苯三甲酸,H 2 bda = 1,3-苯二乙酸)已被合成并进行结构表征。在这两种化合物中,金属离子通过桥连二吡啶配体连接,形成阳离子起伏的一维配位聚合物 [Ag(bpp)] n由有机阴离子平衡。然而,在2bda 阴离子参与将聚合物成对连接的金属配位。值得注意的是,12 的晶胞中分别存在六个和四个晶体学独立的 Ag(bpp) 单元,这一特征可能受 bpp 配体构象自由度的影响,尽管实验条件、溶剂和填充效应不能被排除。在这两种化合物中,晶体堆积显示出由大量水分子和阴离子有机物质实现的广泛的 H 键网络。计算了12的带隙能量以解释它们对有毒亚甲蓝染料和化合物1降解的活性 发现为此目的更有效。
更新日期:2021-09-08
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