De-Qing Chu

Hydrothermal Synthesis of a Two-Dimensional Coordination Polymer [Fe(phen)(μ6-bta)1/2]n (bta = Benzene-1,2,4,5-tetracarboxylate, phen = 1,10-Phenanthroline)

A metal-ligand complex [Fe(phen)(μ6-bta)1/2]n (phen = 1,10-phelanthroline; bta = benzene-1,2,4,5-tetracarboxylate ligand) has been hydrothermally synthesized and structurally characterized by single crystal X-ray crystallography, showing that it possesses a novel, two-dimensional polymeric structure.

First transition metal coordination compound supported on metal–oxygen cluster with bicapped quasi-Keggin structure: [Cu(en) 2 (H 2 O)] 4 [Cu(en) 2 ] 3.5 [PMo VI 8 V IV 6 O 42 Cu(en)(1,10 ′ -phen)] 3 ·14H 2 O

Abstract A novel compound, [Cu(en)2(H2O)]4[Cu(en)2]3.5[PMoVI8VIV6O42Cu(en)(1,10′-phen)]3·14H2O 1 (en = ethylenediamine, phen = phenanthroline), was synthesized hydrothermally (170 °C, 10 days, autogeneous pressure) and characterized by IR, ESR, elemental analyses and X-ray crystallography. The results of structure determination show that compound 1 contains three different structure cluster anions [PMoVI8VIV6O42]7− supporting complex cation [Cu(en)(1,10′-phen)]2+, in which one cluster anion possesses typical bicapped Keggin structure, while other two polyanions only have bicapped quasi-Keggin structures, and [Cu(en)(1,10′-phen)]2+ is linked through oxygen atoms to different V positions of two bicapped quasi-Keggin units.

The synthesis and structural characterization of a novel layered compound [Na0.5FeMoH1.5O5]n

Abstract Single crystal of [Na0.5FeMoH1.5O5]n has been hydrothermally (160 °C, 72 h, autogeneous pressure) synthesized and characterized by IR, EPR, XPS, elemental analyses and single-crystal structural analysis which reveals the compound consists of host Mo–O–Fe polymeric layers, and guest Na+ cations between the layers.