Polyoxometalates matrixed into surfactants: synthesis, characterizations, and conformations of surfactants

被引:23
作者
Bu, WF
Wu, LX [1 ]
Tang, AC
机构
[1] Jilin Univ, Key Lab Supramol Struct & Mat, Minist Educ, Changchun 130023, Peoples R China
[2] Jilin Univ, State Key Lab Theoret & Computat Chem, Changchun 130023, Peoples R China
基金
中国国家自然科学基金;
关键词
surfactant; polyoxometalates; surfactant-encapsulated cluster;
D O I
10.1016/j.jcis.2003.08.064
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
We synthesized two surfactant-encapsulated polyoxometalate (POM) clusters (SECs), (DODA)(15)[H3Mo57V6(NO)(6)O-189(H2O)(12)(VO)(6)](.)13H(2)O (SEC-2, DODA: dimethyldioctadecyl ammonium) and (DODA)(12)[Eu(H2O)P5W30O110](.)28H(2)O (SEC-3). SECs were characterized in detail by elemental analysis, UV-Vis absorption spectroscopy, FTIR, H-1 NMR, thermogravimetric analysis, Langmuir isotherms, and powdered X-ray diffractions. SEC-2 can form a stable monolayer at the air-water interface. SEC-2 and SEC-3 possess a layered structure with periodicities of 3.8 and 5.05 nm, respectively. Alkyl chains in SEC-2 are disordered, but SEC-3 is indicative of well-ordered alkyl chains. According to the simplified structural analysis for SEC-2 and SEC-3, DODAs occupy areas of 1.12 and 0.589 nm(2) on the surface of the POMs, which are characteristic of the liquid-like and crystalline-like phases for DODA, respectively. The different conformations of DODAs then lead to the different packing structures of SECs. This work is aiming to control the organizational structures of the POM-based materials by selecting the appropriate POMs. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:472 / 475
页数:4
相关论文
共 17 条
  • [1] Bu WF, 2002, CHINESE J CHEM, V20, P1514
  • [2] Surfactant-encapsulated polyoxoanion: Structural characterization of its Langmuir films and Langmuir-Blodgett films
    Bu, WF
    Fan, HL
    Wu, LX
    Hou, XL
    Hu, CW
    Zhang, G
    Zhang, X
    [J]. LANGMUIR, 2002, 18 (16) : 6398 - 6403
  • [3] Investigation on solvent casting films of surfactant-encapsulated clusters
    Bu, WF
    Wu, LX
    Hou, XL
    Fan, HL
    Hu, CW
    Zhang, X
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 251 (01) : 120 - 124
  • [4] CHEMENTELEON M, 1997, LANGMUIR, V13, P2340
  • [5] RIGID NONLABILE POLYOXOMETALATE CRYPTATES [ZP5W30O110](15-N)- THAT EXHIBIT UNPRECEDENTED SELECTIVITY FOR CERTAIN LANTHANIDE AND OTHER MULTIVALENT CATIONS
    CREASER, I
    HECKEL, MC
    NEITZ, RJ
    POPE, MT
    [J]. INORGANIC CHEMISTRY, 1993, 32 (09) : 1573 - 1578
  • [6] Introduction: Polyoxometalates - Multicomponent molecular vehicles to probe fundamental issues and practical problems
    Hill, CL
    [J]. CHEMICAL REVIEWS, 1998, 98 (01) : 1 - 2
  • [7] Biologically inspired polyoxometalate-surfactant composite materials.: Investigations on the structures of discrete, surfactant-encapsulated clusters, monolayers, and Langmuir-Blodgett films of (DODA)40(NH4)2[(H2O)n⊂Mo132O372(CH3CO2)30(H2O)72]
    Kurth, DG
    Lehmann, P
    Volkmer, D
    Müller, A
    Schwahn, D
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2000, (21): : 3989 - 3998
  • [8] Kurth DG, 2000, CHEM-EUR J, V6, P385, DOI 10.1002/(SICI)1521-3765(20000117)6:2<385::AID-CHEM385>3.0.CO
  • [9] 2-A
  • [10] Liu SQ, 2002, ADV MATER, V14, P225, DOI 10.1002/1521-4095(20020205)14:3<225::AID-ADMA225>3.0.CO