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  • New open framework indium-based metal organic framework material: synthesis and crystal structure description
    Mazaj, Matjaž ; Loiseau, Thierry ; Kaučič, Venčeslav
    A new MOF-type indium pyromellitate (MIL-117) was hydrothermally synthesized at 483 K for 24 hours. The structure of MIL-117 with formula In6(OH)6(btec)4 9H20 (btec = 1,2,4,5-benzenetetracarboxylate) ... has orthorhombic (Pnmm) symmetry and unit cell parameters a=8.2390(8), b=22.251(2), c=37.791(4) A, V= 6928.2(11) A3. It contains 3-D open framework of infinite chains of unusual cis sharing In-centered octahedra linked to each other through the pyromellitate ligands. The three distinct In(III) cations are coordinated with four oxygen atoms from carboxyl groups and two n2-hydroxyl groups in cis positions. The MIL-117 network delimits one-dimensional channels of 7.7 x 8.0 A running along the a axis, where occluded water molecules are located. Although water species can be easily removed from the pore, no N2 sorption was observed at 77 K for its BET surface area estimation.
    Vrsta gradiva - prispevek na konferenci
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 4820250