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Title: A novel germanium(IV) oxalate complex: [Ge(OH)2(C2O4)2]2−
Author: Shi, Fa-Nian
Cunha-Silva, Luís
Paz, Filipe A. Almeida
Hardie, Michaele J.
Klinowski, Jacek
Rocha, João
Trindade, Tito
Keywords: Germanium(IV) oxalates
hydrogen bonding networks
crystalline structures
crystalline organic-inorganic hybrids
Issue Date: Mar-2008
Publisher: Elsevier
Abstract: Two crystalline compounds, X [Ge(OH)2(C2O4)2] n(H2O) [where X ¼ C4H12N2þ 2 ðH2pipz2þÞ and n = 1 for compound I, and X ¼ C10H10N2þ 2 ðH2bipy2þÞ and n = 2 for II], were synthesised using hydrothermal synthetic approach and characterised structurally using single-crystal X-ray diffraction, vibrational spectroscopy (FT-IR and FT-Raman), thermogravimetric analysis (TGA) and CHN elemental composition. The crystalline compounds contain a novel anionic complex [Ge(OH)2(C2O4)2]2 , which co-crystallises with organic cations (piperazinium in I, and 4,40-bipyridinium in II) and water molecules of crystallisation. These chemical moieties are involved in extensive three-dimensional (3D) hydrogen bonding networks composed of strong and highly directional O–H O and N–H O interactions.
Peer review: yes
ISSN: 1387-7003
Appears in Collections:DQ - Artigos

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