Issue 36, 2011
From the journal:

Dalton Transactions

Interaction of thorium(iv) with nitrate in aqueous solution: medium effect or weak complexation?†

Plinio Di Bernardo,*a   Pierluigi Zanonato,a   Linfeng Rao,*b   Arturo Bismondoc  and  Francesco Endrizzia  

* Corresponding authors

a Dipartimento di Scienze Chimiche dell'Università di Padova, Via Marzolo 1, Padova, Italy
E-mail: plinio.dibernardo@unipd.it
Fax: +39 0498275213

b Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Mail Stop 70A-1150, Berkeley, CA, USA
E-mail: lrao@lbl.gov
Fax: (510)486-5427

c Istituto di Chimica Inorganica e delle Superfici del CNR, Corso Stati Uniti 4, Padova, Italy

Abstract

Microcalorimetric titrations were performed to study the Th(IV)/nitrate interaction in aqueous solution. The results show the formation of a weak mononuclear complex of Th(IV) with nitrate and allow the determination of the complexation thermodynamic parameters at 298 K and ionic strength 1.0 mol dm−3. The reaction is endothermic and entropy driven. Data and comparison with similar actinide(IV) complexes allow to confirm the inner-sphere nature of the Th(NO3)3+ complex.

Graphical abstract: Interaction of thorium(iv) with nitrate in aqueous solution: medium effect or weak complexation?

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Article information

DOI
https://doi.org/10.1039/C1DT10325C
Article type
Paper
Submitted
25 Feb 2011
Accepted
26 May 2011
First published
08 Jul 2011

Dalton Trans., 2011,40, 9101-9105

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Interaction of thorium(IV) with nitrate in aqueous solution: medium effect or weak complexation?

P. Di Bernardo, P. Zanonato, L. Rao, A. Bismondo and F. Endrizzi, Dalton Trans., 2011, 40, 9101 DOI: 10.1039/C1DT10325C

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