Preparation and XAFS studies of organotin(IV) complexes with adenosine and related compounds and calf thymus DNA

L. Nagy; A. Szorcsik; H. Jankovics; T. Yamaguchi; K. Yoshida; M. Scopelliti; L. Pellerito; E. Sletten

doi:10.1007/s10967-007-6958-9

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 275: Issue 1

Preparation and XAFS studies of organotin(IV) complexes with adenosine and related compounds and calf thymus DNA

Authors:

L. Nagy

L. Nagy Szeged University Department of Inorganic and Analytical Chemistry H-6701 Szeged P.O. Box 440 Hungary

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A. Szorcsik

A. Szorcsik Szeged University Biocoordination Research Group of Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry H-6701 Szeged P.O. Box 440 Hungary

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H. Jankovics

H. Jankovics Szeged University Biocoordination Research Group of Hungarian Academy of Sciences, Department of Inorganic and Analytical Chemistry H-6701 Szeged P.O. Box 440 Hungary

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T. Yamaguchi

T. Yamaguchi Fukuoka University Department of Chemistry, Faculty of Science Fukuoka, Nanakuma, Jonan-ku Japan

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K. Yoshida

K. Yoshida Fukuoka University Department of Chemistry, Faculty of Science Fukuoka, Nanakuma, Jonan-ku Japan

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M. Scopelliti

M. Scopelliti University of Palermo Department of Inorganic and Analytical Chemistry Viale delle Scienze, Parco d’Orleans 90128 Palermo Italy

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L. Pellerito

L. Pellerito University of Palermo Department of Inorganic and Analytical Chemistry Viale delle Scienze, Parco d’Orleans 90128 Palermo Italy

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E. Sletten

E. Sletten University of Bergen Department of Chemistry Allegaten 41 Bergen Norway

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Pages:: 193–200

Online Publication Date:: 07 Sep 2007

Publication Date:: 01 Jan 2008

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-007-6958-9

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Abstract

Complexes of adenosine and related compounds (adenosine-5’-monophosphate, adenosine-5’-triphosphate and pyridoxal-5-phosphate) with Bu₂SnO and/or BuSnCl₂ were prepared in the solid state. The compositions of the complexes were determined by standard analytical methods. It was found that the complexes contain the organotin(IV) moiety and the ligand in a ratio of 1:1. The FT-IR spectra demonstrated that Bu₂SnO reacts with the D-ribose moiety of the ligands, while Bu₂SnCl₂ is coordinated to the deprotonated phosphate group. The basic part of the ligands does not participate directly in complex formation. Comparison of the experimental Mössbauer Δ (quadrupole splitting) values with those calculated on the basis of the pqs concept revealed that the organotin(IV) moiety has Tbp and in some cases also T_h geometry. The adenosine complex contains the organotin(IV) cation in two different surroundings (Tbp and T_h). The local structures of the complexes were determined by means of EXAFS measurements. At the same time a number of organotin(IV) complexes containing different organo moieties of calf thymus DNA were also prepared. Similarly as above, EXAFS data were obtained for these compounds and analyzed by using multishell models up to 300 pm. These results are the first structural data (bond lengths) on complexes formed with organotin(IV)-DNA and related compounds.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)