Relative yields of endohedral lanthanide metallofullerenes by arc synthesis and their correlation with the elution behavior

被引:55
作者
Huang, HJ [1 ]
Yang, SH [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong
来源
JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 50期
关键词
D O I
10.1021/jp982926n
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Fourteen endohedral lanthanide metallofullerenes were synthesized using the are-discharge method under identical conditions, and their relative yields and elution behavior have been studied by mass spectrometry and HPLC. The eluate around the M@C-82 peak (M = lanthanide metal) was collected in two fractions of equal amount. The DCI negative ion mass spectrum of each metallofullerene in each collected fraction was well resolved on the basis of the characteristic isotopic distribution. The relative yield of these metallofullerenes was found to be in the following order: Ce > Pr > Tb, Gd > Nd > La similar to Er > Ho > Dy > Lu much greater than Tm similar to Sm similar to Eu similar to Yb. The order of their retention times (Tb > Gd > Pr > Ce > Er similar to Lu > La similar to Ho > Nd > Dy much greater than Tm similar to Sm similar to Eu similar to Yb) was also obtained by comparing the mass peak intensities of each metallofullerene from the two HPLC fractions. A fairly good correlation between these two sequences is identified and discussed.
引用
收藏
页码:10196 / 10200
页数:5
相关论文
共 19 条
  • [1] HIGH-YIELD SYNTHESIS OF LANTHANOFULLERENES VIA LANTHANUM CARBIDE
    BANDOW, S
    SHINOHARA, H
    SAITO, Y
    OHKOHCHI, M
    ANDO, Y
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (23) : 6101 - 6103
  • [2] ATOMS IN CARBON CAGES - THE STRUCTURE AND PROPERTIES OF ENDOHEDRAL FULLERENES
    BETHUNE, DS
    JOHNSON, RD
    SALEM, JR
    DEVRIES, MS
    YANNONI, CS
    [J]. NATURE, 1993, 366 (6451) : 123 - 128
  • [3] Cotton S., 1991, LANTHANIDE ACTINIDES
  • [4] Isolation and characterization of Pr@C-82 and Pr-2@C-80
    Ding, JQ
    Yang, SH
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (45) : 11254 - 11257
  • [5] Efficient N,N-dimethylformamide extraction of endohedral metallofullerenes for HPLC purification
    Ding, JQ
    Yang, SH
    [J]. CHEMISTRY OF MATERIALS, 1996, 8 (12) : 2824 - 2827
  • [6] Electronic structure of Ce@C-82: An experimental study
    Ding, JQ
    Weng, LT
    Yang, SH
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (26) : 11120 - 11121
  • [7] FILLED BUCKYBALLS - RECENT DEVELOPMENTS FROM THE ENDOHEDRAL METALLOFULLERENES OF LANTHANIDES
    EDELMANN, FT
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (09): : 981 - 985
  • [8] Extraction and chromatographic elution behavior of endohedral metallofullerenes: Inferences regarding effective dipole moments
    Fuchs, D
    Rietschel, H
    Michel, RH
    Fischer, A
    Weis, P
    Kappes, MM
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (02) : 725 - 729
  • [9] FUCHS D, 1995, P IWEPNM 95
  • [10] ESR STUDY OF THE ELECTRONIC-STRUCTURES OF METALLOFULLERENES - A COMPARISON BETWEEN LA-AT-C-82 AND SC-AT-C-82
    KATO, T
    SUZUKI, S
    KIKUCHI, K
    ACHIBA, Y
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (51) : 13425 - 13428