0000000000376335
AUTHOR
Nailette Ruiz
Structure, spectroscopic and magnetic properties of a novel 1-D coordination copper(II) polymer containing BIMAM ligand [BIMAM=bis(imidazol-2-yl)methylaminomethane] and μ-1,3 squarato bridges
Abstract This paper reports the synthesis and complete characterization (structural, spectroscopic and magnetic) of [Cu(HBIMAM)Cl(C4O4)]n · (H2O)n [BIMAM = bis(imidazol-2-yl)methylaminomethane]. This compound is made of infinite chains – running along c axis – built from [CuCl(HBIMAM)]+ units bridged together by μ-O1,O3-bis(monodentate) squarate anions. Non-covalent interactions (H-bonds and π–π) drive the build-up of an infinite three-dimensional array. The coordination polyhedron about the copper(II) ion is distorted square pyramidal. The EPR spectrum is indicative of a d z 2 - y 2 ground state for the Cu(II) ions with significant contribution of d z 2 . Magnetic susceptibility measuremen…
A novel coordination polymer with an unusual [3×2] oblique copper(II) grid: [Cu2(HBIMAM)2(C4O4)3(H2O)2]n·2nH2O [BIMAM=bis(imidazol-2-yl)methylaminomethane]. X-ray structure and magnetic characterization
Abstract This paper reports the synthesis, X-ray structure and magnetic characterization of [Cu2(HBIMAM)2(C4O4)3(H2O)2]n·2nH2O [BIMAM = bis(imidazol-2-yl)methylamino methane]. This compound is made of infinite chains – running along the [1 1 0] direction – with copper ions bridged by μ1,3-squarato ligands. Furthermore, these chains are further cross-linked through additional squarate anions (with the same μ1,3-bis(monodentate) bridging mode) to generate two-dimensional sheets parallel to the ab plane. There are inter-chains links every two copper atoms in a chain, forming an unusual (3 × 2) oblique copper(II) grid. Magnetic susceptibility measurements in the range 2–300 K show weak antiferr…
CCDC 893839: Experimental Crystal Structure Determination
Related Article: Emilio Escrivá, Lucía Soto, Juan Server-Carrió, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Nailette Ruiz, Amparo Sancho, Julia García-Lozano, Carmen Ramírez de Arellano|2013|Polyhedron|56|90|doi:10.1016/j.poly.2013.03.016