Electrically conductive Cu()-based 1D coordination polymer with theoretical insight

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 49; no. 43; pp. 15323 - 15331
• Main Authors: Islam, Sakhiul, Das, Pubali, Maiti, Saswati, Khan, Samim, Maity, Suvendu, Ghosh, Prasanta, Jana, Atish Dipankar, Ray, Partha Pratim, Mir, Mohammad Hedayetullah
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 10.11.2020
• Subjects: Coordination polymers; Crystallography; Crystals; Electrical resistivity; Format; Intermolecular forces; Ligands; Schottky diodes; Self-assembly; Single crystals; X ray powder diffraction; X-ray diffraction
• ISSN: 1477-9226; 1477-9234; 1477-9234
• DOI: 10.1039/d0dt03098h

A nitro-functionalized Cu( ii )-based one-dimensional coordination polymer (1D CP) [Cu(nip)(4-phpy) 2 ] n ( 1 ) (H 2 nip = 5-nitroisophthalic acid and 4-phpy = 4-phenylpyridine) was synthesized and characterized by elemental analysis, powder X-ray diffraction (PXRD) and single crystal X-ray diffraction (SCXRD). In the solid-state self-assembly of 1 , two sets of weak intermolecular forces, CH π interaction among the axially bound 4-phpy ligands and π π interaction among bridging nip ligands from adjacent 1D coordination polymeric chains led to 3D supramolecular packing. Interestingly compound 1 exhibited electrical conductivity in the semiconducting regime and behaved as a Schottky barrier diode. A nitro-functionalized Cu( ii )-based 1D CP generates a 3D supramolecular assembly through a novel "super-supramolecular" synthon, which exhibits electrical conductivity and reveals a Schottky diode behaviour.