Engineering coordination architecture by hydrothermal synthesis; preparation, X-ray crystal structure and magnetic behaviour of the coordination solid [Mn3{C6H3(CO2)3-1,3,5}2]

Abstract

The hydrothermal reaction of manganese dichloride with the potassium salt of benzene-1,3,5-tricarboxylic acid at 220 "C gives [Mn3{C6H3(C02)3-1,3,5)2] which exhibits two pathways for antiferromagnetic coupling.

Hydrothermal synthesis, crystal structure and luminescence of four novel metal–organic frameworks

“…Under hydrothermal conditions, the properties of the reactants and the interactions between organic and inorganic partners are quite different from those under conventional conditions in water. Therefore, various simple precursors and metastable compounds may be produced by hydrothermal reactions, and it facilitates crystal growth from solution [18][19][20]. Taking advantage of the interesting properties of carboxylic acid and hydrothermal reaction, we present the synthesis, structural characterization, and luminescent properties of four novel carboxylate coordinated transition MOFs.…”

A three-dimensional metal–organic framework with a distorted Kagome related layer showing canted antiferromagnetic behaviour

“…The recent reports of Mn 2+ carboxylates, [Mn{Mn 3 (m 3 -F)(bta) 3 (H 2 O) 6 6 H 3 (COO) 3 } 2 ], with an isolated linear Mn 3 unit connected through trimesate anions show simple antiferromagnetic behavior through intra-and inter-trimer interactions. 16 In all these compounds Mn 2+ ions are exclusively present in octahedral coordination. In the present compound, however, Mn 2+ ions are in trigonal prismatic and octahedral geometry (Fig.…”

Synthesis, crystal structure and magnetic property of a three-dimensional manganese(II) complex

“…This structure is distinctly different from manganese(II)-btc structures because of the different structural conformations and different coordination modes between amino and carboxylate groups [30,31]. Selected bond distances and angles are given in table 2.…”

“…The deviation of the Mn II center from the mean plane is 0.0944 Å . The axial positions are occupied by one carboxylate oxygen atom and one amino nitrogen atom from different [30,31,33]. Each asp bridges four Mn II centers through its amino group, one chelating and one bridging carboxylate groups, (scheme 1).…”