CRYSTAL STRUCTURE OF DIIODOBIS(O-PHENYLENEBIS(DIMETHYLARSINE))GOLD(3) IODIDE - A DISCRETE 6-COORDINATE CATIONIC COMPLEX OF GOLD(3)

被引:34
作者
DUCKWORTH, VF
STEPHENSON, NC
机构
[1] School of Chemistry, University of New South Wales, Kensington, N. S. W.
关键词
D O I
10.1021/ic50078a018
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The crystal structure of diiodobis(o-phenylenebis(dimethylarsine))gold(III) iodide, abbreviated as Au(diars)2I2, has been determined from three-dimensional, photographically recorded X-ray data. The compound crystallizes in the monoclinic system with a = 21.6 ± 0.2 Å, b = 8.92 ± 0.04 Å, c = 16.10 ± 0.08 Å, β = 107 ± 1°, Z = 4, and space group C2/c. The structure, refined by leastsquares methods to a final conventional R factor for nonzero data of 0.14, consists of layers of Au(diars)2I2+ cations interspersed with iodide ions. The cations have 1-Ci symmetry and the gold(III) atom is coordinated to two diarsine ligands, approximately in a square plane, with iodine atoms in octahedral positions. The Au-As bond distances are shorter than normal, indicating a degree of iπ bonding. The Au-I distances are longer than normal but nevertheless are indicative of strong interactions between the gold and iodine atoms. The latter atoms are each cushioned on four methyl groups which prevent any closer approach. © 1969, American Chemical Society. All rights reserved.
引用
收藏
页码:1661 / +
页数:1
相关论文
共 24 条
  • [1] NEW CALCULATIONS OF ATOMIC SCATTERING FACTORS
    BERGHUIS, J
    BERTHA, IJ
    HAANAPPEL, M
    POTTERS, M
    MACGILLAVRY, CH
    LOOPSTRA, BO
    VEENENDAAL, AL
    [J]. ACTA CRYSTALLOGRAPHICA, 1955, 8 (08): : 478 - 483
  • [2] BUSING WR, 1962, ORNLTM306 REP
  • [3] BUSING WR, 1962, ORNLTM305 REP
  • [4] Charlton R. J., 1966, INORG NUCL CHEM LETT, V2, p409 414
  • [5] THE CRYSTAL STRUCTURE OF GOLD (III) CHLORIDE
    CLARK, ES
    TEMPLETON, DH
    MACGILLAVRY, CH
    [J]. ACTA CRYSTALLOGRAPHICA, 1958, 11 (04): : 284 - 288
  • [6] CRAIG DP, PRIVATE COMMUNICATIO
  • [7] CRUICKSHANK DWJ, 1965, COMPUTING METHODS CR, P114
  • [8] A TABLE OF DISPERSION CORRECTIONS FOR X-RAY SCATTERING OF ATOMS
    DAUBEN, CH
    TEMPLETON, DH
    [J]. ACTA CRYSTALLOGRAPHICA, 1955, 8 (12): : 841 - 842
  • [9] COMPLEXES OF A DITERTIARY ARSINE WITH UNIVALENT AND TERVALENT GOLD
    HARRIS, CM
    NYHOLM, RS
    [J]. JOURNAL OF THE CHEMICAL SOCIETY, 1957, (JAN): : 63 - 70
  • [10] HARRIS CM, 1962, REV PURE APPL CHEM, V12, P16