Gas-phase equilibria of quaternary bismuth selenium oxidechlorides

被引：0
作者：
Schmidt, P
Oppermann, H [1 ]
Söger, N
Binnewies, M
Rykov, AN
Znamenkov, KO
Kuznetsov, AN
Popovkin, BA
机构：
[1] Tech Univ Dresden, Inst Anorgan Chem, D-01062 Dresden, Germany
[2] Univ Hannover, Inst Anorgan Chem, D-3000 Hannover, Germany
[3] Moscow State Univ, Inst Anorgan Chem, Moscow, Russia
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2000年 / 626卷 / 12期
关键词：
bismuth selenides oxides chlorides; thermodynamic data; chemical vapour transport;
D O I：
10.1002/1521-3749(200012)626:12<2515::AID-ZAAC2515>3.0.CO;2-Y
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The existence of new compounds Bi4O4SeCl2, Bi10O12SeCl4, and Bi22O28SeCl8 in the pseudoternary area Bi2O3/Bi2Se3/BiCl3 has been established by solid state and chemical vapour transport reactions. Furthermore, heterogeneous equilibria between solid state and vapour phase have been studied by mass-spectrometric measurements. The novel gas-molecule BiSeCl has been detected. The results of ab initio calculations for structure and refining of thermochemistry of this molecule are given: (Bi-Se) = 2,44 Angstrom; (Bi-Cl) = 2,49 Angstrom; (Se-Bi-Cl) = 106,0 degrees; Thermodynamics: DeltaH degrees (B,298) (BiSeClg) = 6,0 kcal/mol; S degrees (298) (BiSeClg) =75,8 cal/mol K; Cp (BiSeClg) = 13,583 + 0,64 . 10(-3) . T - 0,41 . 10(5) . T-2 - 0,35 . 10(-6) . T-2 cal/mol K. Finally, the composition of the gaseous phase has been calculated and estimations about chemical vapour transport were carried out by thermodynamic modelling.
引用
收藏
页码：2515 / 2524
页数：10
相关论文
共 26 条
  • [1] GLUSCHKO VP, 1968, TERMITSCHESKIJE KONS
  • [2] Knacke O., 1991, Thermochemical Properties of Inorganic Substances, V2nd
  • [3] CHEMICAL-TRANSPORT OF IRON SULFIDE .1. THERMODYNAMICAL ASPECTS OF TRANSPORT OF FESX WITH IODINE - CONTRIBUTION TO PROBLEM OF TRANSPORT OF COMPOUNDS WITH A HOMOGENEITY RANGE
    KRABBES, G
    OPPERMANN, H
    WOLF, E
    [J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1975, 416 (01): : 65 - 82
  • [4] APPLICATION OF THERMODYNAMIC MODELS TO CHEMICAL-TRANSPORT REACTIONS WITH SYSTEMS CONTAINING SEVERAL COEXISTING SOLID-PHASES OR PHASES WITH A HOMOGENEITY RANGE
    KRABBES, G
    OPPERMANN, H
    WOLF, E
    [J]. JOURNAL OF CRYSTAL GROWTH, 1983, 64 (02) : 353 - 366
  • [5] KRABBES G, GMIN VERSOIN 4 01 PR
  • [6] Thermochemical investigations on the system Bi/Se/O -: III.: The quasi binary system Bi2O3-Bi2Se3 and the ternary range Bi2O3-Bi2O2Se-Se-SeO2
    Oppermann, H
    Göbel, H
    Schmidt, P
    Schadow, H
    Vassilev, V
    Markova-Deneva, I
    [J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 1999, 54 (02): : 261 - 269
  • [7] Oppermann H, 2000, Z ANORG ALLG CHEM, V626, P937
  • [8] Oppermann H, 1999, Z NATURFORSCH B, V54, P239
  • [9] Thermochemical investigation on the system Bi/Se/O .1. The phase triangle Bi2Se3/Bi2O2Se/Se
    Oppermann, H
    Gobel, H
    Schadow, H
    Vassilev, V
    MarkovaDeneva, I
    [J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1996, 622 (12): : 2115 - 2118
  • [10] Phase barograms and phase diagrams using total pressure measurements
    Oppermann, H
    Gobel, H
    Petasch, U
    [J]. JOURNAL OF THERMAL ANALYSIS, 1996, 47 (02): : 595 - 604
123