Synthesis, characterization and crystal structure of 4-methoxybenzylidene-based zinc(II) complexes
Author:
Ndiolene Adrienne1, Diop Tidiane1, Ndiaye Ndiak2, Boye Mouhamadou Sembene1, Michaud François3, DIASSE-SARR Aminata1
Affiliation:
1. Département de Chimie, Laboratoire de Chimie Minérale et Analytique , Faculté des Sciences et Techniques, Université Cheikh Anta Diop , Dakar , Sénégal 2. Laboratoire de Chimie Organique et Informatique , Faculté des Sciences et Techniques, Université Cheikh Anta Diop , Dakar , Sénégal 3. Service commun d’analyse par diffraction des rayons X , Université de Bretagne Occidentale , 6 avenue Victor Le Gorgeu, CS 93837 , F-29238 BREST Cedex 3 , France
Abstract
Abstract
Two novel zinc(II) complexes containing 4-methoxybenzylidene moieties namely, Zn(L)Cl2 (L = N, N′-bis(4-methoxybenzylidene)ethane-1, 2-diamine (1) or N-(4-methoxybenzylidene)-ethane-1, 2-diamine (2)) have been synthesized and characterized by infrared spectroscopy and single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic space group P21/c with a = 9.2315(4); b = 12.0449(4); c = 18.2164(7) Å; β = 98.472(4)°, V = 1278.9(4) Å3 and Z = 4. Complex 2 crystallizes in the monoclinic space group P21/n with a = 6.5733 (2), b = 13.6595(5), c = 15.1615(5) Å; β = 101.846(4)°, V = 1332.33(8) Å3 and Z = 4. The environment of each Zn(II) atom is distorted tetrahedral with coordination of two terminal Cl atoms and two N atoms of the N,N′ – bis(4-methoxybenzylidene)ethane-1,2-diamine (1) or N-(4-methoxybenzylidene)ethane-1,2-diamine (2) ligand. The stability of the crystalline structure is ensured by the existence of intra- and intermolecular hydrogen bonds of the type C–H…Cl (1) and N–H…Cl (2) leading to supramolecular topologies.
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
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