Synthesis, crystal structure and magnetic properties of two-dimensional malonato-bridged cobalt(ii) and nickel(ii) compounds
Citations Over TimeTop 13% of 2004 papers
Abstract
Two isostructural malonato-bridged complexes of formula {[M(H2O)2][M(mal)2(H2O)2]}n [M = Co(II) (1), Ni(II) (2); H2mal = malonic acid] have been synthesised and characterized by X-ray diffraction. Their structure consists of corrugated layers of trans-diaquabismalonatemetalate(II) and trans-diaquametal(II) units bridged by carboxylate–malonate groups in the anti–syn conformation. Two crystallographycally independent metal atoms occur in 1 and 2. The malonate anion acts simultaneously as a bidentate and bis-monodentate ligand. Variable-temperature (1.9–295 K) magnetic susceptibility measurements indicate the occurrence of weak antiferro- (1) and ferromagnetic (2) interactions between the cobalt(II) (1) and nickel(II) ions (2) through the anti–syn caboxylate–malonate bridge. A brief discussion on the structural diversity and crystal engineering possibilities of the malonate complexes with divalent first-row transition metal ions other than copper(II) is carried out.
Related Papers
- → Measurements of Oxalic Acid, Oxalates, Malonic Acid, and Malonates in Atmospheric Particulates(2008)64 cited
- → Malonate Metabolism by Plant Tissues(1959)19 cited
- → Ab initio MO study on model compounds of malonyl-CoA: malonic acid and malonyl methyl sulfide(1996)6 cited
- Semiempirical MO Study on Malonyl-CoA. 1. Malonic Acid and Malonyl Methyl Sulfide(1995)
- PHYSICO-CHEMICAL STUDY OF THE COMPLEX FORMATION OF BERYLLIUM IONS WITH ORGANIC LIGANDS. PART IV. WITH MALONIC ACID AND ITS DERIVATIVES(1962)