Structural model calculation of antimicrobial and antifungal agents derived from clay minerals

被引:36
作者
Ohashi, F
Oya, A
Duclaux, L
Beguin, F
机构
[1] MITI, AIST, Natl Ind Res Inst Nagoya, Ceram Technol Dept, Nagoya, Aichi 462, Japan
[2] Gunma Univ, Fac Engn, Kiryu, Gumma 376, Japan
[3] Univ Orleans, CNRS, CRMD, F-45071 Orleans, France
关键词
intercalation; model calculation; montmorillonite; taeniolite;
D O I
10.1016/S0169-1317(98)00008-8
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
The silver chelate of 2-(4-thiazolyl)benzimidazole was exchanged for the interlayer cation of Li-taeniolite and Na-montmorillonite. The structure of the resulting films was derived from the (00l) relative intensities observed by X-ray diffraction. Four arrangements of the chelate between the silicate layers were considered, and the projected area of the chelate for each orientation was calculated. In Li-taeniolite the projected area available for one positive charge was too small to allow full exchange of the interlayer lithium cations by the silver chelate. On the other hand, the sodium ions in montmorillonite could readily exchange with the bulky silver chelate. Structural model calculation on the resulting clay film indicated that the silver chelate was oriented vertically between the layers of montmorillonite with its extremities at the center of linked the ditrigonal cavities. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:435 / 445
页数:11
相关论文
共 7 条
[1]  
BUERGER MJ, 1960, CRYSTAL STRUCTURE AN
[2]   ORGANO-BENTONITES WITH QUATERNARY ALKYLAMMONIUM IONS [J].
FAVRE, H ;
LAGALY, G .
CLAY MINERALS, 1991, 26 (01) :19-32
[3]   Antimicrobial and antifungal agents derived from clay minerals .8. Thermostability of montmorillonite intercalated by silver chelate of 2-(4-thiazolyl)-benzimidazole or quaternary ammonium cations [J].
Ohashi, F ;
Oya, A .
JOURNAL OF MATERIALS SCIENCE, 1996, 31 (13) :3403-3407
[4]  
Ohashi F., 1992, J ANTIBACT ANTIFUNGA, V20, P525
[5]  
Oya A., 1991, Applied Clay Science, V6, P135, DOI 10.1016/0169-1317(91)90003-R
[6]  
ROY SH, 1969, FLUORINE MICAS
[7]   LAZY PULVERIX, A COMPUTER-PROGRAM, FOR CALCULATING X-RAY AND NEUTRON-DIFFRACTION POWDER PATTERNS [J].
YVON, K ;
JEITSCHKO, W ;
PARTHE, E .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1977, 10 (FEB1) :73-74