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Mononuclear and dinuclear bromide nitrite cadmium(II) complexes with related 1,4 diazabicyclo[2.2.2]octane ligands

Cai, Y.

Acta crystallographica. Section C, Crystal structure communications. VOL 67; NUMBER 1, ; 2011, m13-m16 -- Blackwell Publishing Ltd -- 2011

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  • Title:
    Mononuclear and dinuclear bromide nitrite cadmium(II) complexes with related 1,4 diazabicyclo[2.2.2]octane ligands
  • Author: Cai, Y.
  • Found In: Acta crystallographica. Section C, Crystal structure communications. VOL 67; NUMBER 1, ; 2011, m13-m16
  • Journal Title: Acta crystallographica. Section C, Crystal structure communications.
  • Subjects: Biotechnology; Chemistry; LCC: QD901; Dewey: 548
  • Publication Details: Blackwell Publishing Ltd
  • Language: English
  • Abstract: The title compounds, di bromido bis[bromido(1 carboxymethyl 4 aza 1 azoniabicyclo[2.2.2]octane N4)(nitrito 2O,O )cadmium(II)] dihydrate, [Cd2Br4(C8H15N2O2)2(NO2)2] 2H2O, (I), and aquabromido(1 cyanomethyl 4 aza 1 azoniabicyclo[2.2.2]octane N4)bis(nitrito 2O,O )cadmium(II) monohydrate, [CdBr(C8H14N3)(NO2)2(H2O)] H2O, (II), are two dimensional hydrogen bonded metal organic hybrid complexes. In (I), the complex is situated on a centre of inversion so that each symmetry related CdII atom is coordinated by two bridging Br atoms, one monodentate Br atom, one chelating nitrite ligand and one organic ligand, yielding a significantly distorted octahedral geometry. The combination of O H...O and O H...Br hydrogen bonds produces centrosymmetric R66(16) ring motifs, resulting in two dimensional layers parallel to the ab plane. In contrast, the complex molecule in (II) is mononuclear, with the CdII atom seven coordinated by two bidentate nitrite groups, one N atom from the organic ligand, one monodentate Br atom and a water O atom in a distorted pentagonal bipyramidal environment. The combination of O H...O and O H...Br hydrogen bonds produces R54(14) and R33(8) rings which lead to two dimensional layers parallel to the ac plane.
  • Identifier: Journal ISSN: 0108-2701
  • Publication Date: 2011
  • Accrual Information: Monthly
  • Shelfmark(s): 0612.021000
  • UIN: ETOCRN284981101

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