Anion assisted self-assembly of a Ni(II) complex into metallo-supramolecular network involving H-bonded synthons as nodes

Molecular self-assembly of cadmium-triazolate complexes via hydrogen bonding: Synthesis, structures and photoluminescent properties

“…In this context, coordination polymers of one-, two-, and three-dimensional infinite frameworks involving cadmium (II) ions have been the subject of interest in recent years owing to their potential applications as catalysts, photoluminescent and opto-electronic materials. Moreover, the d 10 configuration and softness of cadmium (II) ion permits a host of coordination numbers and geometries [15][16][17][18][19].A number of metal organic frameworks based on aminotriazole (AmTrz) ligand and its substituted analogs have been synthesized recently by different workers, including us [20][21][22][23][24][25]. It is thus challenging to continue the investigation in the area of triazole based metal-organic coordination polymers because of their interesting bridging and polymeric structural features.…”

“…A number of metal organic frameworks based on aminotriazole (AmTrz) ligand and its substituted analogs have been synthesized recently by different workers, including us [20][21][22][23][24][25]. It is thus challenging to continue the investigation in the area of triazole based metal-organic coordination polymers because of their interesting bridging and polymeric structural features.…”

Crystal Structure and Magnetic Properties of Trinuclear Transition Metal Complexes (MnII, CoII, NiII and CuII) with Bridging Sulfonate-Functionalized 1,2,4-Triazole Derivatives

“…The Ni II compound data ( Figure 3 b) reveals a χ m T value of 3.33 cm 3 ·mol −1 ·K at 300 K, which is consistent with the presence of three high spin Ni II ions with S = 1. χ m T remains constant down to 150 K, when it starts to decrease quickly down to 1.12 cm 3 ·mol −1 ·K at 2 K. The best fitting of these experimental data with the isotropic trimer model yielded g = 2.2 and J = −7.5 K, again in good agreement triazole-bridged Ni II centers (J from −13.8 to −6.7 K) [ 60 , 61 , 62 ].…”

Zinc-orotate coordination polymer: synthesis, thermogravimetric analysis and luminescence properties

“…Metal orotates have also caught growing acknowledgement in medicine. As a part of our continuing research on crystal engineering of metal-organic/orotate crystals comprising synthon induced molecular accumulation into higher dimensionality [29][30][31][32][33][34][35] in this manuscript we have reported 3D hydrogen bonded Zn-orotate network based upon potassium orotate, in which carboxylic group will be available to be coordinated to metal ion and imino and carbonyl oxygen will provides platform for non-covalent interactions (N-H···O and O-H···O synthons). Since the carbonyl group and carboxylate anion is a universal H-bond acceptor simultaneously as imino group is an H-bond donor, these peripheral groups are anticipated to interact with each other or with aqua ligand through hydrogen bonding, of pyrimidyl ring (Scheme 1).…”