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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Basic information
Original name 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
Name in Czech Syntéza a struktura hexabromotelluričitan-bis(dibromoselenatanu) tetrapropylamonného [NPr4]2[TeBr6(SeBr2)2]
Authors JANICKIS, Vitalijus (440 Lithuania) and Marek NECAS (203 Czech Republic, guarantor).
Edition Zeitschrift für Anorganische und Allgemeine Chemie, Německo, Wiley - VCH, 2008, 0044-2313.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10402 Inorganic and nuclear chemistry
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 1.102
RIV identification code RIV/00216224:14310/08:00033822
Organization unit Faculty of Science
UT WoS 000259545200016
Keywords in English Selenium; Tellurium; Bromotellurates(IV); Mixed-valence Te(IV)-Se(II) compounds; Crystal structure
Tags Bromotellurates(IV), Crystal Structure, Mixed-valence Te(IV)-Se(II) compounds, selenium, tellurium
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Marek Nečas, Ph.D., učo 18809. Changed: 9/4/2010 16:16.
Abstract
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.
Abstract (in Czech)
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.
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