【文章內(nèi)容簡(jiǎn)介】 aracterized. The framework contains Tb2 and Tb4 clusters, and exhibits an unprecedented 4nodal (3,4,5,8)connected topology. In addition, the thermogravimetric analysis, luminescent and magnetic properties were investigated.19. AbstractThis paper reports two alkalineearth metal phosphonates with formulae M(4cppH2)2 [M = Sr (1), Ba (2)。 4cppH3 = 4carboxylphenylphosphonic acid]. Compound 1 shows a chain structure made up of edgesharing {SrO8} polyhedra and {PO3C} tetrahedra. While in pound 2, the edgesharing {BaO8} polyhedra are connected by the {PO3C} tetrahedra to form a twodimensional inorganic layer. Neighboring chains in 1 or layers in 2 are crosslinked by hydrogen bond interactions between the protonated carboxylate groups, resulting in threedimensional supramolecular structures. The magnesium alloys coated with 1 or 2 films show significantly improved anticorrosion behaviors pared to the bare substrate.20. AbstractA novel 3D inorganic–organic hybrid pound {[Cu3(en)(TTHA)(H2O)4]}n(1) (TTHA = 1,3,5triazine2,4,6triamine hexaacetic acid。 en = ethylenediamine) has been synthesized and characterized. Topological analysis shows that the pound is a new 3,10connected 2nodal net with point symbol ()(43)2, further simplification of the structure by merging two 3connected nodes and one 10connected node together gives a rare uninodal 8connected hex net, we conclude that the 2nodal net found in the network is a hexoriginated supernet. TG, IR, PXRD and photoluminescent spectra of the pound 1 are investigated.21. AbstractUnder hydrothermal conditions, Sm(NO3)36H2O reacts with N(2Hydroxyethyl)iminodiacetic acid (H3heidi), oxalic acid (H2Ox), in the presence of NiCl26H2O and NaOH, producing a novel two dimensional coordination polymer with the empirical formula of Na[Sm(Hheidi)(Ox)]2H2O (1). Xray diffraction analyses show that 1 crystallizes in the orthorhombic system, Pna21 space group, a = (19) 197。, b = (5) 197。, c = (6) 197。, in which the network of SmNO8 and oxalate units forms an extended two dimensional layered structure. To the best of our knowledge, 1 represents the first structurally characterized lanthanide plex containing H3heidi ligand. The variabletemperature magnetic property of 1 has been investigated and the results of magnetic determination suggest the existence of a weak antiferromagnetic coupling between the samarium ions.22. AbstractHeating [WO2(S2CNBui2)2] with a slight excess of ArNCO (Ar = Ph, ptolyl) results in the rapid formation of imidoureato plexes [W(NAr){κ2ArNC(O)NAr}(S2CNBui2)2], a transformation believed to occur via the bis(imido) intermediates [W(NAr)2(S2CNBui2)2]. The ureato ligand is easily removed (as the urea) upon addition of gaseous HCl to afford the dichloride [W(NAr)Cl2(S2CNBui2)2]. While bis(imido) plexes are unavailable from the direct reaction of isocyanates (or amines) with [WO2(S2CNBui2)2], they can be prepared upon addition of dithiocarbamate salts to [W(NBut)2(NHBut)2] addition of two equivalents of [NH2Bui2][Bui2NCS2] affording [W(NBut)2(S2CNBui2)2] in which both imido groups are linear.23. AbstractA new neutral dimeric cyclometalated iridium plex containing bridging thiocyanate ligands, [{Ir(μSCN)(pqcm)2}2] (1, pqcmH = 2phenylquinoline4 carboxylic acid methyl ester), has been synthesized and structurally characterized. The photoluminescence (PL) spectrum of 1 shows emission maximum at 638 nm with a lifetime of μs and the PL quantum yield is ca. . The phosphorescence behaviours of 1 towards different solvents and metal ions were also investigated and the strong phosphorescence quenching by acetonitrile and two equivalents of Hg2+, Cu2+ and Ag+ ions were observed.24. AbstractIonothermal reaction of isophthalate (H2ip), and colbolt(II) nitrate under 1ethly3methylimidazolium bromide (EMimBr) as solvent leads to a novel three dimensional metal–organic framework (EMim)2[Co3(ip)4] (1). It can be described