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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F10%3A00043709%21RIV11-MSM-14310___
rdf:type
skos:Concept n13:Vysledek
dcterms:description
Brown crystals of [NMe4]4[(Se4Br10)2(Se2Br2)2] (1) were obtained from the reaction of selenium and bromine in acetonitrile in the presence of tetramethylammonium bromide. The crystal structure of 1 was determined by X-ray diffraction and refined to R = 0.0297 for 8401 reflections. The crystals are monoclinic, space group P21/c with Z = 4 and a = 12.646(3) A, b = 16.499(3) A, c = 16.844(3) A, = 101.70(3)deg (123 K). In the solid-state structure, the anion of 1 is built up of two [Se4Br10]2- ions. Each shows a triangular arrangement of three planar SeBr4 units sharing a common edge through two 3-bridging bromine atoms, and one SeBr2 molecule, which is linked to the SeII atoms of two SeBr4 units; between the Se4Br102- ions a dimerized Se2Br2 molecule (Se4Br4) is situated and one SeI atom of each Se2Br2 molecule has two weak contacts [3.3514(14) A and 3.3952(11) A] to two bromine atoms of one SeBr4 unit. Four SeI atoms of a dimerized Se2Br2 molecule are in a almost regular planar tetraangular arrangement. Brown crystals of [NMe4]4[(Se4Br10)2(Se2Br2)2] (1) were obtained from the reaction of selenium and bromine in acetonitrile in the presence of tetramethylammonium bromide. The crystal structure of 1 was determined by X-ray diffraction and refined to R = 0.0297 for 8401 reflections. The crystals are monoclinic, space group P21/c with Z = 4 and a = 12.646(3) A, b = 16.499(3) A, c = 16.844(3) A, = 101.70(3)deg (123 K). In the solid-state structure, the anion of 1 is built up of two [Se4Br10]2- ions. Each shows a triangular arrangement of three planar SeBr4 units sharing a common edge through two 3-bridging bromine atoms, and one SeBr2 molecule, which is linked to the SeII atoms of two SeBr4 units; between the Se4Br102- ions a dimerized Se2Br2 molecule (Se4Br4) is situated and one SeI atom of each Se2Br2 molecule has two weak contacts [3.3514(14) A and 3.3952(11) A] to two bromine atoms of one SeBr4 unit. Four SeI atoms of a dimerized Se2Br2 molecule are in a almost regular planar tetraangular arrangement.
dcterms:title
Synthesis and Crystal Structure of Tetrakis(tetramethylammonium) Bis[decabromotetraselenate(II)]-bis[dibromodiselenate(I)], [(CH3)4N]4[(Se4Br10)2(Se2Br2)2], the Salt of a Mixed-Valence Bromoselenate(II/I) Anion Synthesis and Crystal Structure of Tetrakis(tetramethylammonium) Bis[decabromotetraselenate(II)]-bis[dibromodiselenate(I)], [(CH3)4N]4[(Se4Br10)2(Se2Br2)2], the Salt of a Mixed-Valence Bromoselenate(II/I) Anion
skos:prefLabel
Synthesis and Crystal Structure of Tetrakis(tetramethylammonium) Bis[decabromotetraselenate(II)]-bis[dibromodiselenate(I)], [(CH3)4N]4[(Se4Br10)2(Se2Br2)2], the Salt of a Mixed-Valence Bromoselenate(II/I) Anion Synthesis and Crystal Structure of Tetrakis(tetramethylammonium) Bis[decabromotetraselenate(II)]-bis[dibromodiselenate(I)], [(CH3)4N]4[(Se4Br10)2(Se2Br2)2], the Salt of a Mixed-Valence Bromoselenate(II/I) Anion
skos:notation
RIV/00216224:14310/10:00043709!RIV11-MSM-14310___
n3:aktivita
n14:S
n3:aktivity
S
n3:cisloPeriodika
5
n3:dodaniDat
n11:2011
n3:domaciTvurceVysledku
n16:1424343
n3:druhVysledku
n15:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
291473
n3:idVysledku
RIV/00216224:14310/10:00043709
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Bromine; Selenium; Mixed-valent compounds; Solid-state structure; X-ray diffraction
n3:klicoveSlovo
n9:X-ray%20diffraction n9:Bromine n9:Mixed-valent%20compounds n9:Solid-state%20structure n9:Selenium
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[A05C0989E793]
n3:nazevZdroje
Zeitschrift für Anorganische und Allgemeine Chemie
n3:obor
n10:CA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n11:2010
n3:svazekPeriodika
636
n3:tvurceVysledku
Nečas, Marek Janickis, Vitalijus
s:issn
0044-2313
s:numberOfPages
6
n12:organizacniJednotka
14310