Novel coordination polymers based on nickel(II) and 2,6-naphthalenedicarboxylate

• Published in: Solid state sciences 2003-02, Vol.5 (2), p.303-310
• Main Authors: Kongshaug, Kjell Ove, Fjellvåg, Helmer
• Format: Article
• Language: English
• Subjects: Antiferromagnetic; Condensed matter: structure, mechanical and thermal properties; Coordination polymers; Exact sciences and technology; Hydrothermal synthesis; Inorganic compounds; Metal complexes; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Synchrotron powder X-ray data
• ISSN: 1293-2558; 1873-3085
• DOI: 10.1016/S1293-2558(03)00005-0

The two coordination polymers [Ni(ndc)(lutidine) 2(H 2O) 2], CPO-3, and [Ni 3(ndc) 3(pyridine) 4], CPO-4, were obtained by hydrothermal reactions between 2,6-naphthalenedicarboxylic acid (ndc), 3,4-lutidine and nickel(II) nitrate (CPO-3) and ndc, pyridine and nickel(II) nitrate (CPO-4), respectively. In CPO-3, the combination of octahedral nickel(II) ions and ndc ligands leads to the formation of infinite chains. CPO-4 is based on linear trinuclear building units of octahedral nickel(II) ions that are crosslinked via the ndc ligands to form a 3D-structure. The crystal structure of CPO-3 was solved from synchrotron powder X-ray data, while the crystal structure of CPO-4 was solved from conventional single-crystal X-ray data. Crystal data for CPO-3: monoclinic space group Cc (No. 9), a=14.8583(2), b=20.3985(3), c=10.7258(1) Å, β=129.0067(6)°, V=2526.14(5) Å 3 and Z=4. Crystal data for CPO-4: monoclinic space group P2 1/ c (No. 14), a=11.491(3), b=17.917(4), c=12.781(3) Å, β=116.142(7)°, V=2362.2(9) Å 3 and Z=2. The thermal and magnetic properties of both compounds were investigated. Graphic