A high field and frequency electron paramagnetic resonance study of the S=2 chromium(II) complex trans-[Cr(NCCH3)4(FBF3)2] and investigation of its reaction with dioxygen: Crystal structure of [(CH3CN)5CrOCr(NCCH3)5](BF4)4•2CH3CN

被引：16
作者：
Barra, Anne-Laure [2 ]
Dossing, Anders [1 ]
Morsing, Thorbjorn [1 ]
Vibenholt, Johan [1 ]
机构：
[1] Univ Copenhagen, Dept Chem, DK-2100 Copenhagen O, Denmark
[2] CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France
来源：
INORGANICA CHIMICA ACTA | 2011年 / 373卷 / 01期
关键词：
X-ray; Oxo-bridged; Dinuclear; EPR; Chromium; MAGNETIC-PROPERTIES; MOLECULAR-STRUCTURE; ACID RHODO; SALTS; TETRAFLUOROBORATE; ACETONITRILE; EPR; DIMERS; CATION; ROUTE;
D O I：
10.1016/j.ica.2011.02.024
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
From high field and frequency electron paramagnetic resonance (EPR) powder spectra of the high spin chromium(II) complex trans-[Cr(NCCH3)(4)(FBF3)(2)] (1) recorded at T = 5-40 K the EPR parameters were found to be D = -2.19 cm (1), E approximate to 0 cm (1), and g(parallel to) = g(perpendicular to) = 1.9833. The reaction between a MeCN solution of 1 and dioxygen gave dark green crystals of [(CH3CN)(5)CrOCr(NCCH3)(5)](BF4)(4)center dot 2CH(3)CN (2). From the X-ray crystal structure of 2 at T = 122 K a Cr-O-Cr angle of 180 degrees and a Cr-O distance of 1.7556(5) angstrom was found. This is the shortest among the known Cr-O distances in dinuclear complexes containing a CrOCr4+ core, and this can partly explain the strong antiferromagnetic coupling between the two chromium(III) centers in 2. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码：266 / 269
页数：4
相关论文
共 32 条
  • [11] An intensity evaluation method:: EVAL-14
    Duisenberg, AJM
    Kroon-Batenburg, LMJ
    Schreurs, AMM
    [J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2003, 36 : 220 - 229
  • [12] Farrugia L.J., 1997, J. Appl. Crystallogr., V30, P565, DOI [10.1107/S0021889897003117, DOI 10.1107/S0021889897003117]
  • [13] Phase transitions and structures at 10, 92 and 293 K in eight trigonal double salts MI[MIII(NH3)6](ClO4)2X2
    Figgis, BN
    Sobolev, AN
    Reynolds, PA
    [J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1998, 54 (05): : 613 - 625
  • [14] NEW SYNTHETIC ROUTE TO OXO-BRIDGED CHROMIUM(III) DIMERS FROM DIHYDROXO-BRIDGED PRECURSORS - CRYSTAL-STRUCTURE AND CHARACTERIZATION OF THE [(CR(TMPA)(NCS))2O]2+ CATION
    GAFFORD, BG
    HOLWERDA, RA
    SCHUGAR, HJ
    POTENZA, JA
    [J]. INORGANIC CHEMISTRY, 1988, 27 (07) : 1126 - 1128
  • [15] A new study of the acid rhodo complex salt [(NH3)(5)CrOHCr(NH3)(5)]Cl-5 center dot H2O shows that the crystals are orthorhombic
    Harris, P
    Birkedal, H
    Larsen, S
    Gudel, HU
    [J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1997, 53 : 795 - 802
  • [16] Synthesis and characterization of hexakis(acetonitrile)chromium(III) tetrafluoroborate, [CrIII(NCMe)6][BF4]3.: A nonaqueous CrIII source
    Hatlevik, O
    Arif, AM
    Miller, JS
    [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2004, 65 (01) : 61 - 63
  • [17] Synthesis, characterization, and reactions of tetrakis(nitrile)chromium(II) tetrafluoroborate complexes
    Henriques, RT
    Herdtweck, E
    Kuhn, FE
    Lopes, AD
    Mink, J
    Romao, CC
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1998, (08): : 1293 - 1297
  • [18] Multi-frequency, high-field EPR as a powerful tool to accurately determine zero-field splitting in high-spin transition metal coordination complexes
    Krzystek, J.
    Ozarowski, Andrew
    Telser, Joshua
    [J]. COORDINATION CHEMISTRY REVIEWS, 2006, 250 (17-18) : 2308 - 2324
  • [19] RETRACTED: μ-Oxido-bis{chlorido[tris(2-pyridylmethyl)amine] chromium(III)} bis(hexafluoridophosphate) (Retracted Article)
    Li, Sheng
    Wang, Shou-Bin
    Zhang, Fu-Li
    Tang, Kun
    [J]. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2008, 64 : M2 - U95
  • [20] INTERACTION OF ACETONITRILEBIS(CYCLOPENTADIENYL)MOLYBDENUM(II) OR TRIS(ACETONITRILE)TRICARBONYLMOLYBDENUM(O) WITH TETRAFLUOROBORIC ACID IN ACETONITRILE - X-RAY CRYSTAL-STRUCTURES OF [MOIV(ETA-5-C5H5)2(MECN)(NH=CHME)][BF4]2, [MOIV(ETA-5-C5H5)2(PME3)2][BF4]2, [MOO(CO)2(MECN)3(ETA-3-CH2CHNH2)]BF4, AND [MOIII2(MU-O)(MECN)10][BF4]4A
    MCGILLIGAN, BS
    WRIGHT, TC
    WILKINSON, G
    MOTEVALLI, M
    HURSTHOUSE, MB
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1988, (07): : 1737 - 1742
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