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A Three‐Dimensional Pentanuclear Co(II) Coordination Polymer: Structural Topology, Hirshfeld Surface Analysis and Magnetic Properties
Author(s) -
Kamaal Saima,
Gupta Mayak,
Mishra Rupali,
Ali Arif,
Alarifi Abdullah,
Afzal Mohd,
Das Raja,
Ahmad Musheer
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003564
Subject(s) - sbus , piperazine , coordination polymer , isophthalic acid , crystallography , ligand (biochemistry) , infrared spectroscopy , antiferromagnetism , chemistry , cobalt , topology (electrical circuits) , magnetic susceptibility , hydrothermal synthesis , hydrothermal circulation , stereochemistry , crystal structure , metal organic framework , inorganic chemistry , receptor , terephthalic acid , physics , mathematics , biochemistry , organic chemistry , adsorption , condensed matter physics , combinatorics , polyester , seismology , geology
A 3D pentanuclear coordination polymer of Co(II); {[Co 5 (L 2‐ ) 4 (HL ‐ ) 2 (bpmp) 2 (H 2 O) 2 ].(H 2 O) 5 } n (CP 1 ) was synthesized by the self‐assembly of semi‐flexible 5‐benzylamino‐isophthalic acid (H 2 L) and N‐donor auxiliary ligand 1,4‐bis(4‐pyridinylmethyl)piperazine (bpmp) using Co(NO 3 ) 2 ⋅ 6H 2 O under hydrothermal condition. The CP 1 has been structurally characterized by elemental analysis, TGA, Powder‐XRD and IR spectroscopy which was further corroborated by single crystal X‐ray studies. Structurally, it is a 3D pentanuclear cobalt cluster secondary building units (SBUs) which are formed by carboxylates oxygen of H 2 L and nitrogen of bpmp. The topological analysis revealed that CP 1 possesses a 2‐nodal 5,6‐connected three‐dimensional (3D) coordination framework with pcu net. Variable temperature magnetic measurements demonstrate that CP1 shows antiferromagnetic behavior.