Mono- and heterodi-nuclear complexes of aluminium: synthesis, characterization and antifungal activity

被引:10
作者
Vajpayee, Vaishali
Singh, Y. P. [1 ]
Nandani, Durgesh
Batra, Amla
机构
[1] Univ Rajasthan, Dept Chem, Jaipur 302004, Rajasthan, India
[2] Univ Rajasthan, Dept Bot, Jaipur 302004, Rajasthan, India
关键词
heterodinuclear compounds; pentacoordinated aluminium; tetracoordinated silicon; multinuclear NMR; FAB mass spectrometry;
D O I
10.1002/aoc.1230
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Some new types of mononuclear derivatives, AlL(1-4)L(1-4)H (1a-1d) of aluminium were synthesized by the reaction of Al(OPri)(3) and LH2 [XC(NYOH)CHC(R)OH], X = CH3, Y = (CH2)(2,) R = CH3(L1H(2)); X = C6H5, Y = (CH2)(2), R = CH3(L2H(2)); X = CH3, Y = (CH2)(3), R = CH3(L3H(2)); X = C6H5, Y = (CH2)(3), R = CH3(L4H(2)) in 1:2 molar ratio in refluxing benzene. Reactions of AlL(1-4)L(1-4)H with hexamethyldisilazane in 2:1 molar ratio yielded some new ligand bridged heterodinuclear derivatives AlL(1-4)L(1-4)SiMe3 (2a-2d). All these newly synthesized derivatives were characterized by elemental analysis and molecular weight measurements. Tentative structures were proposed on the basis of IR and NMR spectra (H-1, C-13,Al-27 and Si-29) and FAB-mass studies. Schiff base ligands and their mono- and heterodi-nuclear derivatives with aluminium, have been screened for fungicidal activities. These compounds showed significant antifungal activity against Aspergillus niger and A. flavus. Copyright (c) 2007 John Wiley & Sons, Ltd.
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页码:694 / 700
页数:7
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