Synthesis and Structural Diversity of Four Coordination Polymers with the Ligand 1‐(3‐Aminopropyl)‐imidazole

Abstract

Four new metal complexes {[Cu(api)2(H2O)]·(ClO4)2·CH3CN}n (1), [Cu(api)2(ClO4)2]n (2), [Cd(api)2(SCN)2]n (3) and [Ni(api)2(SCN)2]n (4) (api = 1‐(3‐Aminopropyl)‐imidazole) were synthesized by reactions of api and different metal salts under different conditions. Interestingly, complexes 1–3 exhibit various one dimensional (1D) double chain structures, while complex 4 shows a 2D layer structure. The results indicate that metal ions, anions, solvents, and the synthesis methods, have great influence on the formation and structure of the complexes.

Syntheses and photoluminescence properties of new Zn(II) and Cd(II) coordination polymers prepared from 5-sulfoisophthalate ligand

“…The adjacent Zn(II) ions are linked by two apim ligands to form the 1D nanotubular structure of 1. The Zn1 • • • Zn1 ii separation is 7.454Å, similar to those found in [Zn(SCN) 2 (apim) 2 ] n (Å) 22 and 19 Moreover, the 1D nanotubular structures are connected together through C-H • • • O, N-H • • •O hydrogen bonds and π • • • π interactions to form a 3D supramolecular structure (Figure 5).…”

Synthesis and Structures of Four Metal‐Organic Coordination Compounds with Isomeric Tripodal Ligands

“…In the past two decades, investigations on self‐assembly of metal‐organic coordination compounds have aroused great interest and enthusiasm, owing to not only their diverse structures and topologies, but also potential applications as functional materials in the field of catalysis, magnetism, luminescence, drugs, and gas storage, etc . Also, it was reported that nature of organic ligands, coordination geometries of metal ions, counterions, and specific experimental conditions like solvents, pH, temperature, and crystallization methods, may dramatically influence the structures during the self‐assembly process . Therefore, the controlled construction of coordination compounds with predefined structures and potential properties was still a great challenge.…”

“…In the construction of new supramolecular coordination compounds, tripodal ligands are of special interest since they have three functional pendants and variable coordination sites . Recently, we focus our attention on diazole‐containing or pyridine‐containing tripodal ligands, and have acquired diverse coordination compounds from mononuclear, dinuclear, tetranuclear, to polynuclear one‐dimensional (1D) zigzag chain structures .…”