NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.47A [2008] >
IJC-A Vol.47A(05) [May 2008] >


Title: Borohydride reduction of azomethine bonds in β-alanine Schiff base complexes
Authors: Yalçın, Bahattin
Medjidov, Ajdar Akbar
Nasrullayeva, Tarana Malik
Taşcıoğlu, Sülin
Aydın, Adnan
Issue Date: May-2008
Publisher: CSIR
IPC CodeInt.Cl. ⁸ C07B31/00
Abstract: Borohydride reduction of the azomethine bond in the Schiff base complexes of β-alanine has been studied. Ni(II), Pd(II) and Pt(II) complexes of N-β-carboxyethyl-2-hydroxynaphthylideneimine (L¹H₂), N-β-carboxyethyl-2-hydroxybenzylideneimine (L²H₂), and N-β-carboxyethyl-N-2-hydroxynaphtylmethyleneamine (L3H₂) have been prepared. L¹H₂ forms complexes with palladium as Pd(L¹H)₂, in which carboxylic groups do not participate in the coordination. L²H₂ and L3H2 behave as tridentate double charged ligands, giving complexes of the type ML².nH₂O and ML³.nH₂O. Ni(II) gives binuclear complex [NiL³.2H₂O]₂. No visible reaction of –C=N- bond reduction with borohydride has been observed for the L¹H₂ complexes of Co(III) d⁶, Ni(II) d⁸, Pd(II) d⁸, Zn(II) d¹⁰ ions at 25ºС in dimethyl formamide. This tendency has also been observed for Ni(II) complex of salicylaldehyde based β-alanine Schiff base, L²H₂, as well as Ni(II), Pd(II), Zn(II) complexes of salen. However, the C=N bond can be reduced with borohydride when it coordinates the metal ions, Cu(II), Co(II) and Mn(II). Ni(II) complexes of both Schiff bases are inactive against reduction. The reduction rates of Schiff bases and related activation energies have also been determined.
Page(s): 699-704
ISSN: 0376-4710
Source:IJC-A Vol.47A(05) [May 2008]

Files in This Item:

File Description SizeFormat
IJCA 47A(5) 699-704.pdf176.04 kBAdobe PDFView/Open
 Current Page Visits: 717 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 586210 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in