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

JANICKIS, Vitalijus a 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, roč. 634, č. 11, s. 1901-1906. ISSN 0044-2313.

Základní údaje

Originální název

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

Název česky

Syntéza a struktura hexabromotelluričitan-bis(dibromoselenatanu) tetrapropylamonného [NPr4]2[TeBr6(SeBr2)2]

Autoři

JANICKIS, Vitalijus (440 Litva) a Marek NECAS (203 Česká republika, garant)

Vydání

Zeitschrift für Anorganische und Allgemeine Chemie, Německo, Wiley - VCH, 2008, 0044-2313

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Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.102

Kód RIV

RIV/00216224:14310/08:00033822

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000259545200016

Klíčová slova anglicky

Selenium; Tellurium; Bromotellurates(IV); Mixed-valence Te(IV)-Se(II) compounds; Crystal structure

Štítky

Bromotellurates(IV), Crystal Structure, Mixed-valence Te(IV)-Se(II) compounds, selenium, tellurium

Příznaky

Mezinárodní význam, Recenzováno

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Anotace

V originále

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.

Česky

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.