Tetraaquabis(5-carboxy-2-nitrobenzoato-κO)manganese(II) dihydrate: a metal–water chain complex containing cyclic water tetramers

Abstract

In the title complex, [Mn(C(8)H(4)NO(6))(2)(H(2)O)(4)] x 2H(2)O, cyclic water tetramers forming one-dimensional metal-water chains have been observed. The water clusters are trapped by the co-operative association of coordination interactions and hydrogen bonds. The Mn(II) ion resides on a center of symmetry and is in an octahedral coordination environment comprising two O atoms from two 5-carboxy-2-nitrobenzoate ligands and four O atoms from water molecules.

Synthesis, Characterization and Properties of Four 3-D Supramolecular Architectures Assembled by Ni(II), Co(II), Zn(II), Cu(II) and 4-Nitro-1,3-benzenedicarboxylic Acid

“…in conjunction with carboxylate groups are used for the creation of supramolecular assemblies recently [20][21][22], duing to the simultaneous formation of dative bonds and noncovalent bonds. In a previous work, we demonstrated two supramolecular architectures using 4-nitro-1,3-benzenedicarboxylic acid (NO 2 -H 2 BDC) as ligand [23,24]. This work is an extension of the above studies with four new complexes M(NO 2 -HBDC) 2 [24].…”

“…In a previous work, we demonstrated two supramolecular architectures using 4-nitro-1,3-benzenedicarboxylic acid (NO 2 -H 2 BDC) as ligand [23,24]. This work is an extension of the above studies with four new complexes M(NO 2 -HBDC) 2 [24]. Herein, we report the crystal structure and some properties of the three isomorphous crystals of complexes 1-3 and complex 4 in which the same ligand adopt different coordination modes.…”