Lanthanide(III) and Yttrium(III) Complexes of Benzimidazole-2-Acetic Acid: Synthesis, Characterisation and Effect of La(III) Complex on Germination of Wheat
<p>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, <mml:math> <mml:mrow> <mml:msu...
Saved in:
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
Wiley
2006-01-01
|
| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://www.hindawi.com/GetArticle.aspx?doi=10.1155/BCA/2006/75612 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | <p>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, <mml:math> <mml:mrow> <mml:msup> <mml:mi></mml:mi> <mml:mn>1</mml:mn> </mml:msup> </mml:mrow> </mml:math>H NMR, UV-visible, EPR, and TG/DTA studies. They have the stoichiometry <mml:math> <mml:mrow><mml:mo>[</mml:mo> <mml:mrow> <mml:msub> <mml:mrow> <mml:mtext>Ln</mml:mtext> </mml:mrow> <mml:mn>3</mml:mn> </mml:msub> <mml:msub> <mml:mrow> <mml:mrow><mml:mo>(</mml:mo> <mml:mrow> <mml:mtext>BIA</mml:mtext> </mml:mrow> <mml:mo>)</mml:mo></mml:mrow> </mml:mrow> <mml:mn>2</mml:mn> </mml:msub> <mml:msub> <mml:mrow> <mml:mrow><mml:mo>(</mml:mo> <mml:mrow> <mml:msub> <mml:mrow> <mml:mtext>NO</mml:mtext> </mml:mrow> <mml:mn>3</mml:mn> </mml:msub> </mml:mrow> <mml:mo>)</mml:mo></mml:mrow> </mml:mrow> <mml:mn>7</mml:mn> </mml:msub> <mml:msub> <mml:mrow> <mml:mrow><mml:mo>(</mml:mo> <mml:mrow> <mml:msub> <mml:mtext>H</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> <mml:mtext>O</mml:mtext> </mml:mrow> <mml:mo>)</mml:mo></mml:mrow> </mml:mrow> <mml:mn>4</mml:mn> </mml:msub> </mml:mrow> <mml:mo>]</mml:mo></mml:mrow><mml:mo>⋅</mml:mo><mml:mn>3</mml:mn><mml:msub> <mml:mtext>H</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> <mml:mtext>O</mml:mtext> </mml:math> where Ln=La(III), Pr(III), Nd(II), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III), and Y(III). The effect of La(III) 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.</p> |
|---|---|
| ISSN: | 1565-3633 |