Intercalated Cu(II) benzimidazole complexes in the interlayer space of montmorillonite

Authors: Luptáková, V.; Plesch, G.

Source: Clay Minerals, Volume 40, Number 3, September 2005 , pp. 295-302(8)

Publisher: Mineralogical Society

Buy & download fulltext article:

OR

Price: $14.82 plus tax (Refund Policy)

Abstract:

The results of EPR, UV-VIS and IR spectral studies show that benzimidazole forms various complexes with Cu(II) exchanged in the interlayer space of montmorillonite, depending on the acidity of the reaction medium during synthesis. In a nearly neutral solution a bis(benzimidazole)bis(aqua) Cu(II) cationic complex is formed. In a strongly basic solution, benzimidazole is bound to Cu(II) in the form of an anionic bifunctional ligand and a planar intercalated bis(benzimidazolate) Cu(II) complex is formed, where the benzimidazolate anion acts as a bridging ligand in the polymeric complex. The treatment in basic solution leads to partial illitization of the smectite. In a strongly acid solution, a nearly stoichiometric ionic exchange of benzimidazolium ion for Cu(II) ions takes place in the interlayer space of montmorillonite.

Keywords: BENZIMIDAZOLE; CU(II); EPR; IR; MONTMORILLONITE; UV-VIS; XRD

Document Type: Research Article

DOI: http://dx.doi.org/10.1180/0009855054030173

Publication date: September 1, 2005

More about this publication?
Related content

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page
UA-1313315-23