The interplay between coordination and non-covalent interactions in three zinc coordination polymers†

IF 2.6 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

CrystEngComm Pub Date : 2025-07-17 DOI:10.1039/D5CE00505A

Biplab Halder, Puspendu Middya, Antonio Frontera, Michael G. B. Drew and Shouvik Chattopadhyay

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Abstract

The synthesis and characterization of three zinc(II) polymers, [(μ-OAc)₃Zn₂L¹]_n·0.5nH₂O (1), [(μ-OAc)₃Zn₂L²]_n (2), [(μ-OAc)₃Zn₂L³]_n (3), using three tridentate ligands, HL¹ {2-(((2-(diethylamino)ethyl)amino)methyl)phenol}, HL² {4-chloro-2-(((3-(dimethylamino)propyl)amino)methyl)phenol} and HL³ {4-bromo-2-(((3-(dimethylamino)propyl)amino)methyl)phenol}, have been reported in this manuscript. The structures were confirmed by SC-XRD analysis. The DFT study analyzes the cooperative roles of bridging acetate co-ligands and NH⋯O hydrogen bonds. A structural survey of the Cambridge Structural Database (CSD) reveals that polymeric complexes derived from reduced bicompartmental Schiff base ligands are rare, emphasizing the unique structural features and supramolecular assembly observed in the present work.

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三种锌配位聚合物中配位与非共价相互作用的相互作用

本文报道了三种锌（II）聚合物[(μ-OAc)3Zn2L1]n·0.5nH2O (1), [(μ-OAc)3Zn2L2]n (2), [(μ-OAc)3Zn2L2]n （3)， HL2{4-氯-2-（（3-（二甲氨基）丙基）氨基）甲基）苯酚}和HL3{4-溴-2-（（（3-（二甲氨基）丙基）氨基）甲基）苯酚}的合成和表征。通过SC-XRD分析证实了其结构。DFT研究分析了桥接乙酸共配体和NH⋯O氢键的协同作用。剑桥结构数据库（CSD）的结构调查显示，由还原的双室希夫碱配体衍生的聚合物配合物是罕见的，强调了本研究中观察到的独特的结构特征和超分子组装。

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