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Abstract: Three novel hetero-polyoxovanadates, [Cd(2,2′-bpy)3]{[Cd(dien)]As8V14O42(H2O)} (1, 2,2′-bpy=2,2′-bipyridine, and dien=diethylenetriamine), [Zn(2,2′-bpy)2]2[As8V14O42(H2O)]·H2O (2) and [Ni(en)2]3[As8V14O42(HPO3)]·4H2O (3, en=ethlenediamine), were hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Crystal data: 1 monoclinic, P2(1)/n, , , , , Z=4. 2, orthorhombic, P2(1)2(1)2(1), , , , . 3, triclinic, , , , , , , , . Compounds 1–3 are all made of the {As8V14O42} shells linked by corresponding transition metal complexes into extended structures. Compound 1 and 2 present 1-D wave-like and tubular structures, respectively, while compound 3 exhibits a novel 2-D structure containing interwinding puckery layers. Variable temperature susceptibility measurements demonstrate the presence of antiferromagnetic interaction between VIV cations in 1 and 2. [Copyright &y& Elsevier]

Abstract: Hydrothermal reactions of VOSO4·3H2O, CdAc2·2H2O, NiCl2·6H2O, H3PO4, and H2O yield the first example of trimetallic phosphate materials, [Ni(H2O)4]Cd(VO)(PO4)2 1. The single-crystal X-ray diffraction shows that its structure consists of Cd/V/O binary metal oxide lamellas decorated by PO4 tetrahedra, which are further pillared by NiO2(H2O)4 octahedra to generate a neutral 3-D framework containing two intercrossing 8-MR channels where the coordinated water molecules protrude into. Thermal and magnetic behaviors of this material were also measured. Crystal data: CdNiVP2O13H8, orthorhombic Ibca (No.73), a=7.1307(2)Å, b=18.6248(3)Å, c=14.8046(2)Å, V=1966.17(7)Å3, Z=8. [Copyright &y& Elsevier]

Abstract: A new hydrated borate compound, [NH3CH2CHCH3NH3]][B8O11(OH)4]·H2O 1, has been synthesized in the presence of 1,2-diaminopropane acting as a structure-directing agent under mild conditions. Its structure was determined by single crystal X-ray diffraction and further characterized FTIR, elemental analysis, powder X-ray diffraction and thermogravimetric analysis. Compound 1 crystallizes in the monoclinic system, space group P21 /c (No. 14), a=10.0787(7)Å, b=8.8482(6)Å, c=19.3097(4)Å, β=91.352(6)°, V=1721.53(2)Å3, and Z=4. The structure consists of infinite open-branched borate chains constructed from [B3O6(OH)] units, onto which the [B5O7(OH)3] groups are grafted. It represents the first example of one-dimensional borate templated by an organic amine. The adjacent borate chains are further linked together by extensive hydrogen bonds to form a 3D supramolecular network. The diprotonated organic amines and guest water molecules are filled in the free space of the hydrogen-bonded network and interact with the inorganic framework by extensive hydrogen bonds. [Copyright &y& Elsevier]

Four tetra-Cd-substituted vanadogermanates (V-Ge-Os) H 2 [Cd(dap) 2 {[Cd(dap)] 4 [Ge 8 V 10 O 38 (OH) 8 }·10H 2 O (1), H[Cd(phen)(H 2 O) 2 2 {[Cd(phen)] 4 Ge 8 V 10 O 39 (OH) 7 }·2H 2 O (2), [Cd(phen) 2 2 {[Cd(phen)] 2 [Cd(dap)] 2 Ge 8 V 10 O 38 (OH) 8 }·2H 2 O (3) and H 2 [Cd(phen) 2 4 {[Cd(phen)] 4 [Ge 8 V 10 O 40 (OH) 6 }{[Cd(phen)] 2 [Cd(H 2 O) 2 2 [Ge 8 V 10 O 38 (OH) 8 }·10H 2 O (4) (dap ​= ​1,2 - diaminopropane; phen ​= ​1,10 - phenanthrolinemonohydrate) have been hydrothermally prepared and structurally characterized. Single crystal X-ray structural analyses indicate that all of 1 – 4 contain uncommon tetra-Cd-substituted V-Ge-O clusters. 1 is a rare one-dimensional chain based on tetra-Cd-substituted V-Ge-O clusters, while 2–4 are unique discrete tetra-Cd-substituted V-Ge-O clusters decorated with different metal-organoamine complexes. Furthermore, the thermal/chemical stability of 1 and 2 as well as the magnetic properties of 1 , 2 and 4 were investigated. In this work, four tetra-Cd-substituted vanadogermanates was successfully prepared and characterized. The tetra-Cd-substituted vanadogermanate cluster is a flexible unit, which can be not only decorated by various transition-metal complexes to form different isolated structures, but also bridged by transition-metal complexes to generate an extended 1-dimensional chain. Image 1 • Four unique tetra-Cd-substituted vanadogermanates have been hydrothermally made. • Compound 1–4 represent the second series of tetra-Cd-substituted V-Ge-Os. • Compound 1 is a novel 1-dimensional chain based on tetra-Cd-substituted V-Ge-O cluster. • Compound 3 is an uncommon tetra-Cd-substituted V-Ge-O containing mixed chelating organoamine ligands. • Compound 4 is the first V-Ge-O containing two electrically different tetra-Cd-substituted V-Ge-O clusters in one structure. [ABSTRACT FROM AUTHOR]