Anion influence in the structural diversity of cadmium coordination polymers constructed from a pyridine based Schiff base ligand
- Autor(en)
- Ali Akbar Khandar, Farhad Akbari Afkhami, Seyed Abolfazl Hosseini-Yazdi, Jonathan M. White, Scott Kassel, William G. Dougherty, Janusz Lipkowski, Donald Van Derveer, Gerald Giester, Ferdinando Costantino
- Abstrakt
A series of seven coordination polymers based on Cd and potentially tetradentate pyridine based Schiff base ligand with different anions (CH3COO-, NO-2, Cl-, I-, N-3, SCN-), [Cd(L)(CH3COO)(OH2)]n (1),{[Cd2(L)2(NO2)2(CH3OH)2]·CH3OH}n (2), {[Cd2(L)2Cl2(CH3OH)2]·CH3OH}n (3), [Cd(HL)I2]n (4), [Cd3(L)2(N3)4]n (5), [Cd(L)(SCN)(OH2)]n (6) and [Cd(HL)(SCN)2]n (7) {HL = 2-pyridinecarbaldehyde isonicotinoyl hydrazone (HPCIH)} in order to rationalize the effect of the anion, have been synthesized and characterized by elemental analyses, FT-IR spectroscopy, single crystal X-ray data diffraction, etc. The results show the influence of the counter-ions on the coordination mode of the cadmium ion that is capable of forming compds. with five-, six- and seven-coordination nos. The ligand acts as a neg. charged tetradentate N3O-donor ligand and coordinates to the cadmium center in the enolic form (=N-N=C-O) in 1-3 and 5-6 while in compds. 4 and 7 coordinates as N3- and N3O-donor neutral ligand in keto form (=N-NH-C=O), resp. Cadmium centers in 1-4 and 6, bridging by the HPCIH ligand cause to form one-dimensional coordination polymers and the anions act as terminal ligands. In compds. 5 and 7, the N-3 and SCN- also act as bridging ligands to the metal centers, and form 3D and 2D metal-org. polymers resp.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- University of Tabriz, University of Melbourne, Villanova University, Cardinal Stefan Wyszynski University in Warsaw, Clemson University, Università degli Studi di Perugia
- Journal
- Inorganica Chimica Acta
- Band
- 427
- Seiten
- 87-96
- Anzahl der Seiten
- 10
- ISSN
- 0020-1693
- DOI
- https://doi.org/10.1016/j.ica.2014.11.028
- Publikationsdatum
- 12-2014
- Peer-reviewed
- Ja
- ÖFOS 2012
- 104015 Organische Chemie, 104011 Materialchemie, 105113 Kristallographie
- Schlagwörter
- ASJC Scopus Sachgebiete
- Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/anion-influence-in-the-structural-diversity-of-cadmium-coordination-polymers-constructed-from-a-pyridine-based-schiff-base-ligand(6d9b8c64-48b9-4918-8904-89516b4b4b5d).html