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Highlights: [•] Isolation and characterization of MdTLP7. [•] Expression of MdTLP7 in E. coli enhances growth during abiotic stresses. [•] The β barrel of the Tubby domain played crucial roles in stress tolerance. [ABSTRACT FROM AUTHOR]

Abstract: A novel polyoxometalate [Cu(phen)2]3{PW4 VIW5 VV3 IVO40(VIVO)3[Cu(en)2]}⋅4H2O 1 (en=ethylenediamine, phen=1,10-phenanthroline) has been synthesized hydrothermally and characterized by elemental analysis, IR, XPS, TG, EPR and single-crystal X-ray diffraction analysis. The crystal structure analysis shows that compound 1 contains a novel highly reduced tri-capped and mono-supported pseudo-Keggin-type heteropolyanion, {PW4 VIW5 VV3 IVO40(VIVO)3[Cu(en)2]}6−, three [Cu(phen)2]2+ cations and four lattice water molecules. They are further linked to form three-dimensional supramolecular networks through extensive hydrogen bonding and π–π stacking interactions. Interestingly, the water dimer and terminal oxygen of the cluster polyanion constitute a beautiful supramolecular helix chain. The heteropolyanion is the first example of tri-capped and mono-supported pseudo-Keggin-type tungstovanadophosphate and the pH value is crucial for obtaining compound 1 in synthetic procedure. [Copyright &y& Elsevier]

The hydro(solvo)thermal reactions of CuI with diverse bisimidazole molecules were investigated, affording five new copper(I) iodides [Cu 4 I 4 (L1) 2 ] (L1=1,3-bis(2-methylimidazol-1-ylmethyl)benzene) 1 , [CuI(L2)] (L2=4,4′-bis(imidazolyl)biphenyl) 2 , [Cu 4 I 4 (L3)] (L3=1,3-bis(2-methylimidazol-1-yl)propane) 3 , [Cu 4 I 4 (L4) 2 ] (L4=1,4-bis(2-ethylimidazol-1-yl)butane) 4, and [Cu 4 I 4 (L5)] (L5=1,4-bis(1-imidazoly)benzene) 5 . X-ray single-crystal diffraction analysis reveals that (i) in 1 , a tetranuclear Cu-I cluster (stepped cubane) is observed, and the L1 molecule only acts as an ancillary ligand; (ii) in 2 , the L2 molecules extend the castellated Cu-I chains into a 2-D layer network with a certain thickness; (iii) in 2-D single-layer network of 3 , a 1-D Cu-I column is found, which can be viewed as a longitudinal packing of stepped Cu 4 I 4 cubanes; (vi) in 4 , the L4 molecules propagate the cubic Cu 4 I 4 cubanes into a 3-D 4-fold interpenetrated network with a cds topology; and (v) in 5 , the L5 molecules link the 1-D Cu-I ribbons into a 2-D single-layer network. The photoluminescence analysis indicates that 1 , 2 and 4 emit light (red light for 1 ; yellow light for 2 and 4 ), while 3 and 5 are not emissive. Their photoluminescence behaviors are confirmed to be related to the Cu···Cu interactions in the molecules. [ABSTRACT FROM AUTHOR]

Abstract: Two novel polyoxometalate derivatives, {X IVWVI 10WV 2O40[Cu(en)2(H2O)]3} [X=V (1), Si (2); en=ethylenediamine], have been hydrothermally synthesized and characterized by elemental analyses, IR, UV–Vis, XPS, EPR, TG and single crystal X-ray diffraction analyses. They represent the first classical Keggin polyoxoanion supported by three transition metal complex moieties, which further act as the neutral molecular unit for the construction of the interesting three-dimensional supramolecular frameworks. The magnetic properties of 1 have also been studied in the temperature range of 4–300K, and its magnetic susceptibility obeys the Curie–Weiss law, showing antiferromagnetic coupling. [Copyright &y& Elsevier]

Abstract: Two new supramolecular compounds based on tungsten–vanadium polyoxoanions formulated as [Cu(2,2′-bipy)3]2H14[PW2.2V9.8O40(VO)2[Cu(2,2′-bipy)2H2O]2][PW2.2V9.8O40(VO)2]·10H2O (1) and [Cu4(2,2′-bipy)4(H2O)2(PO4)2]H6.5[PW8.4V3.6O40]·2H2O (2) (2,2′-bipy=2,2′-bipyridine) have been synthesized hydrothermally and characterized by IR, TG, XPS and X-ray diffraction analyses. Crystal structure analyses reveal that compounds 1 and 2 exhibit novel 2D supramolecular layer structures constructed from tungsten–vanadium polyoxoanions and different types of secondary building units (SBUs), respectively, the different SBUs are formed by [Cu(2,2′-bipy)2H2O]2+ and [Cu(2,2′-bipy)3]2+ cations in compound 1 and [Cu4(2,2′-bipy)4(H2O)2(PO4)2]2+ cations in 2, respectively. Study of magnetic properties indicated the presence of antiferromagnetic behaviors for both compound 1 and 2. [Copyright &y& Elsevier]