J. P. Wang

Novel octatungstate-supported tricarbonyl metal derivatives: {[H2W8O30][M(CO)3]2}8- (M = Mn(I) and Re(I)).

Three novel octatungstate-supported tricarbonyl metal derivatives have been synthesized and characterized, which represent the first examples of isopolyoxotungstates-supported carbonyl metal compounds.

Octamolybdate-supported tricarbonyl metal derivatives: [{H2Mo8O30}{M(CO)3}2]8- (M = Mn(I) and Re(I)).

Two novel octamolybdate-based tricarbonyl metal derivatives have been successfully synthesized and characterized, which represent the first two examples of tricarbonyl metal groups attached to a new {Mo(8)O(30)} building block.

Cobalt-Sandwiched Lindqvist Hexaniobate Dimer (Co(III)H 5 (Nb 6 O 19 ) 2 ) 8- 1

A new polyoxoniobate K6Na2[CoIIIH5(Nb6O19)2] · 26.5H2O (I) has been synthesized by a diffusion strategy and structurally characterized by IR spectrum, UV spectroscopy, TG analysis, and single crystal X-ray diffraction. Compound I crystallizes in the cubic Pa

A unique borotungstate containing a discrete Keggin-type anion and a trimeric saturated Keggin-type anion

\bar 3

Polyoxomolybdates functionalized with aminomethylene phosphonate

space group with a = 17.969(8)Å V = 5802.6(4) Å3, Z = 4, R1 = 0.0383 and wR2 = 0.1187. Compound I consists of the Lindqvist hexaniobate dimer [CoIIIH5(Nb6O19)2]8− in which the Co3+ cations sare andwiched between and face-shared with two Lindqvist-type [Nb6O19]8− subunits. In situ UV spectra display that compound I can stably exist in an aqueous solution.

Synthesis, structure, and characterization of a silicotungstate anion-supported organic-inorganic hybrid complex [Zn(2,2′-Bipy)3]1.5[SiW12O40Zn(2,2′-Bipy)2(OH)] · 0.25H2O

A Keggin organic-inorganic hybrid polyoxometalate combined with nickel complex [Ni (Dmf)3(H2O)][HPMo12O40] · (Dmf) · 2H2O (I) has been synthesized and structurally characterized by elemental analysis, IR spectrum, TG analysis, cyclic voltammetry, and single-crystal X-ray diffraction. Interestingly, a two-dimensional supramolecular network is constructed by the [PMo12O40]3− polyanions, [Ni(Dmf)3(H2O)]2+ cations, and water molecules via hydrogen-bonding interactions. The cyclic voltammetric measurements illustrate that the [PMo12O40]3− polyanion is the electrochemical redox active center of I in the solution.

Divanadate-based inorganic-organic hybrid compound: {[Cu(En)2]2V2O7} · 4H2O

A unique hybrid borotungstate, [Cu(En)(Phen)(H2O)]4[α-BW12O40]{[Cu(En)(Phen)]2[Cu(En)2 · (H2O)]2[Cu(En)(Phen)(H2O)]2[α-BW12O40]3]} sd 10H2O (I) (Phen = 1,10-phenanthroline, En = ethylenediamine), has been hydrothermally synthesized and characterized by elemental analyses, IR, and UV spectra, powder X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, and singlecrystal X-ray diffraction analysis. X-ray crystallography shows that I contains a discrete saturated Keggin-type [BW12O40]5− polyoxoanion and a rare trimeric saturated Keggin-type polyoxoanion {[Cu(En)(Phen)]2[Cu(En)2(H2O)]2[Cu(En)(Phen)(H2O)]2[α-BW12O40]3]}3−. It is noteworthy that I represents the first example of borotungstate containing four saturated Keggin-type units in one molecule.

A new Keggin-type heteropolyanion decorated with dinuclear copper-organic coordination ions: {[Cu(Phen)(μ-Cl)Cu(Phen)2]2[SiW12O40]} · H2O

The copper-substituted tungstoantimonate(III) [Cu(En)2(H2O)2]2[Cu(En)2(H2O)]{[Cu(En)2 (H2O)]2[Cu4Na2(H2O)2(OH)2][(α-SbW9O33)2]} · 3H2O (I) (En = ethylenediamine) has been synthesized and characterized by IR spectrum, elemental analysis, and XPS. X-ray single-crystal analyses were carried out on I, which crystallizes in the triclinic system, space group P-1, with a = 13.071(2) Å, b = 14.434(2) Å, c = 15.729(2) Å, α = 83.004(3)°, β = 71.237(2)°, γ = 74.787(2)°, and Z = 1. The title polyanion consists of two [α-SbW9O33]9− trivacant moieties joined together by an annular [Cu4Na2(H2O)2(OH)2]8− unit leading to a sandwich-type structural framework. The central belt of I contains two crystallography unique Cu2+ and four disordered Cu2+/Na+ ions which reduce the symmetry of the polyanion to C2ν.