[Ga(en)(3)][Ga3Se7(en)] center dot H2O: A gallium chalcogenide with chains of [Ga3Se6Se2/2(en)](3-) bicycles

Autor(en): Fehlker, A
Blachnik, R
Reuter, H 
Stichwörter: Chemistry; Chemistry, Inorganic & Nuclear; CRYSTAL-STRUCTURE; gallium; H...O HYDROGEN-BONDS; hydrothermal synthesis; NEUTRON-DIFFRACTION DATA; polyanions; selenidogallate(III); structure
Erscheinungsdatum: 1999
Herausgeber: WILEY-V C H VERLAG GMBH
Journal: ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Volumen: 625
Ausgabe: 7
Startseite: 1225
Seitenende: 1228
Zusammenfassung: 
The new selenidogallate [Ga(en)(3)][Ga3Se7,(en)]. H2O (I) was produced from a ethylendiamine suspension of Ga and Se at 130 degrees C. I crystallizes in the orthorhombic space group Pna2(1) with unit constants a=1347.9(3)pm, b=961.6(1)pm, c=1967.6(4)pm and Z=4. The crystal structure contains an anion so far not observed in gallium chalcogenides. It is built from [Ga3Se6Se2/2(en)](3-) bicycles of three (GaL4)-L-III tetrahedra (L = en, Se) connected via selenium corners to linear chains. The cations, Ga-III ions coordinated by three ethylendiamine in a distorted octahedral geometry are positioned in the holes of the hexagonal rod packing of these chains.
ISSN: 00442313
DOI: 10.1002/(SICI)1521-3749(199907)625:7<1225::AID-ZAAC1225>3.0.CO;2-H

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