2026-10-14T12:54:49Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33764617 2026-09-14T22:19:14Z portal_1197 item_type_3 month_year_09_2026

Data for discrete and 1D polymeric copper(II) complexes of tetranuclear cubane-like units : structural and magnetic characterization Soumen Manna (543468) Subal Chandra Manna (543471) Soumen Mistri (543469) Apurba Bhunia (3220761) Ennio Zangrando (543470) Horst Puschmann (840250) Paul Goddard (564595) S. Ghannadzadeh (24817432) Polymers Copper compounds -- Magnetic properties Coordination polymers -- Magnetic properties Migrated from ePrints Two novel copper(II) complexes, [Cu4(L)2(LH)2(H2O)2]2(NO3)2. (pydc).9H2O (1) and {[Cu4(L)2(LH)2(H2O)2(ppda)].5H2O}n (2) [H2L=2‐[(2‐hydroxy‐ethylimino)‐methyl]‐6‐methoxy‐phenol, pydc=pyridine‐3,5‐dicarboxylate, ppda=phenylene‐1,4‐diacrylate]have been synthesized and characterised by X‐ray single crystal diffraction analysis and low temperature magnetic study. The structural determination reveals for complex 1 a tetranuclear species exhibiting a double‐open cubane like core framework, whereas use of ppda anions results 1D coordination polymer where tetranuclear double‐open cubane cores are connected by bridging ppda ligands. In both the complexes, hydrogen bonding interactions lead to 3D supramolecular structures. Low temperature magnetic study indicates antiferromagnetic coupling in both the complexes. A model based on an effective square tetramer of Heisenberg spins was used to determine exchange strengths of 174(2) K for 1 and 107.4(4) K for 2.<br><br>Data record consists of a zip archive containing 2 data files in .dat format and an accompanying readme file. Data files are named corresponding to figures in the accompanying paper. For more detailed description of specific data files, please see the accompanying readme file. 2018-08-31T00:00:00Z Dataset Dataset 10.82444/warw.33764617.v1 https://figshare.com/articles/dataset/Data_for_discrete_and_1D_polymeric_copper_II_complexes_of_tetranuclear_cubane-like_units_structural_and_magnetic_characterization/33764617 CC BY 4.0