Series of Dicyanamide-Interlaced Assembly of Zinc-Schiff-Base Complexes: Crystal Structure and Photophysical and Thermal Studies

Autor: Aline Nonat, Monami Maiti, Samiran Mitra, Santarupa Thakurta, Loïc J. Charbonnière, Ray J. Butcher, Dipali Sadhukhan, Syamantak Roy, Guillaume Pilet
Přispěvatelé: Department of Chemistry, Jadavpur University, Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Department of Chemistry, Howard University, Howard University, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2012
Předmět:
Zdroj: Inorganic Chemistry
Inorganic Chemistry, American Chemical Society, 2012, 51 (22), pp.12176-12187. ⟨10.1021/ic3012958⟩
ISSN: 1520-510X
0020-1669
DOI: 10.1021/ic3012958
Popis: International audience; Four new dicyanamide (dca) bridged multinuclear ZnII-Schiff-base complexes, {[Zn2L1(μ1,5-dca)dca]·CH3OH}2 (1), [Zn2L2(μ1,5-dca)dca]n (2), [Zn3L32(μ1,5-dca)2]n (3), and [(ZnL4)2Zn(μ1,5-dca)dca]n (4), have been synthesized using four different Schiff bases L1H2 = N,N/-bis(3-methoxysalicylidenimino)-1,3-diaminopentane, L2H2 = N,N′-bis(5-bromo-3-methoxysalicylidenimino)-1,3-diaminopropane, L3H2 = N,N′-bis(5-bromosalicylidenimino)-1,3-diaminopropane, and L4H2 = N,N′-bis(5-chlorosalicylidenimino)-1,3-diaminopropane and NaN(CN)2 in order to extend the metal–ligand assembly. The directional properties of linear end-to-end bridging dca ligands have resulted in different metal ion connectivities leading to unique variety of templates in each of the complexes. All the ligands and complexes have been characterized by microanalytical and spectroscopic techniques. The structures of the complexes have been conclusively determined by single crystal X-ray diffraction studies. Thermogravimetric analyses have been performed to investigate the thermal stability of the metal–organic frameworks. Finally, the photoluminescence properties of the complexes as well as their respective ligands have been investigated with a comparative approach.
Databáze: OpenAIRE