JANICKIS, Vitalijus and Marek NECAS. Synthesis and Crystal Structure of Bis(tetrapropylammonium) Hexabromotellurate(IV)-bis{dibromoselenate(II)}, [NPr4]2[TeBr6(SeBr2)2], the Salt of a Mixed-valence Bromotellurate(IV)-Selenate(II) Anion. Zeitschrift für Anorganische und Allgemeine Chemie. Německo: Wiley - VCH, 2008, vol. 634, No 11, p. 1901-1906. ISSN 0044-2313. |
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@article{777935, author = {Janickis, Vitalijus and Necas, Marek}, article_location = {Německo}, article_number = {11}, keywords = {Selenium; Tellurium; Bromotellurates(IV); Mixed-valence Te(IV)-Se(II) compounds; Crystal structure}, language = {eng}, issn = {0044-2313}, journal = {Zeitschrift für Anorganische und Allgemeine Chemie}, title = {Synthesis and Crystal Structure of Bis(tetrapropylammonium) Hexabromotellurate(IV)-bis{dibromoselenate(II)}, [NPr4]2[TeBr6(SeBr2)2], the Salt of a Mixed-valence Bromotellurate(IV)-Selenate(II) Anion}, url = {http://dx.doi.org/10.1002/zaac.200800210}, volume = {634}, year = {2008} }
TY - JOUR ID - 777935 AU - Janickis, Vitalijus - Necas, Marek PY - 2008 TI - Synthesis and Crystal Structure of Bis(tetrapropylammonium) Hexabromotellurate(IV)-bis{dibromoselenate(II)}, [NPr4]2[TeBr6(SeBr2)2], the Salt of a Mixed-valence Bromotellurate(IV)-Selenate(II) Anion JF - Zeitschrift für Anorganische und Allgemeine Chemie VL - 634 IS - 11 SP - 1901-1906 EP - 1901-1906 PB - Wiley - VCH SN - 00442313 KW - Selenium KW - Tellurium KW - Bromotellurates(IV) KW - Mixed-valence Te(IV)-Se(II) compounds KW - Crystal structure UR - http://dx.doi.org/10.1002/zaac.200800210 N2 - Dark brown crystals of [NPr4]2[TeBr6(SeBr2)2] (1) were obtained when selenium and bromine (1:1) were allowed to react in acetonitrile solution in the presence of tellurium(IV) bromide and tetrapropylammonium bromide. The salt 1 crystallizes in the monoclinic space group P21/n with the cell dimensions a = 14.7870(3)A, b = 9.5523(3)A, c = 16.7325(3)A, beta = 110.56(10)deg (at 123(2) K). In the solid state the [TeBr6(SeBr2)2]2- anion contains a nearly regular [TeBr6] octahedron in which the four equatorial bromo ligands have developed bonds to Se(II) atoms of the SeBr2 molecules. The contacts between the bridging bromo and the Se(II) atoms of the SeBr2 molecules are 3.0000(4) and 3.0561(4)A, and can be interpreted as bonds of the donor-acceptor type with the bridging bromo ligands as donors and the SeBr2 molecules as acceptors. The Te(IV)-Br distances are in the range 2.6816(3)-2.7131(3)A and the Se(II)-Br bond lengths in the coordinated SeBr2 molecules are 2.3548(4) and 2.3725(4)A. ER -
JANICKIS, Vitalijus and Marek NECAS. Synthesis and Crystal Structure of Bis(tetrapropylammonium) Hexabromotellurate(IV)-bis$\{$dibromoselenate(II)$\}$, [NPr4]2[TeBr6(SeBr2)2], the Salt of a Mixed-valence Bromotellurate(IV)-Selenate(II) Anion. \textit{Zeitschrift für Anorganische und Allgemeine Chemie}. Německo: Wiley - VCH, 2008, vol.~634, No~11, p.~1901-1906. ISSN~0044-2313.
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