The synthesis and characterisation of lanthanide(III) and
yttrium(III) nitrate complexes of benzimidazole-2-acetic acid
(HBIA) are reported. The complexes have been characterised by
elemental analysis, molar conductance, magnetic studies, IR, 1H NMR,
UV-visible, EPR, and TG/DTA studies. They have the
stoichiometry [
where Ln=La(III),
, ,
, ,
, ,
, and .
The effect of
complex on germination, coleoptile, and root length of two local varieties of wheat
DWR-195 and GW-349 for different treatment periods has been investigated.
The complex was found to exhibit enhanced activity, compared to HBIA or metal
salt alone at lower treatment periods.