prikaz prve stranice dokumenta A new cytosine-copper paramagnetic complex spectroscopic study
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Scientific paper - Original scientific paper
A new cytosine-copper paramagnetic complex spectroscopic study
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 70 (2008), 5; 1238-1242. https://doi.org/10.1016/j.saa.2008.01.013
Krilov, Dubravka; Gomzi, Vjeran; Herak, Janko N.

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Krilov, D., Gomzi, V. & Herak, J. N. (2008). A new cytosine-copper paramagnetic complex spectroscopic study. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 70. (5), 1238-1242. doi: 10.1016/j.saa.2008.01.013

Krilov, Dubravka, et al. "A new cytosine-copper paramagnetic complex spectroscopic study." Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, vol. 70, no. 5, 2008, pp. 1238-1242. https://doi.org/10.1016/j.saa.2008.01.013

Krilov, Dubravka, Vjeran Gomzi and Janko N. Herak. "A new cytosine-copper paramagnetic complex spectroscopic study." Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 70, no. 5 (2008): 1238-1242. https://doi.org/10.1016/j.saa.2008.01.013

Krilov, D., Gomzi, V. and Herak, J. N. (2008) 'A new cytosine-copper paramagnetic complex spectroscopic study', Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 70(5), pp. 1238-1242. doi: 10.1016/j.saa.2008.01.013

Krilov D, Gomzi V, Herak JN. A new cytosine-copper paramagnetic complex spectroscopic study. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Internet]. 2008 October [cited 2024 December 01];70(5):1238-1242. doi: 10.1016/j.saa.2008.01.013

D. Krilov, V. Gomzi and J. N. Herak, "A new cytosine-copper paramagnetic complex spectroscopic study", Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, vol. 70, no. 5, pp. 1238-1242, October 2008. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:105:415564. [Accessed: 01 December 2024]

Metadata
Title (english)A new cytosine-copper paramagnetic complex spectroscopic study
AuthorDubravka Krilov
AuthorVjeran Gomzi
AuthorJanko N. Herak
Author's institutionUniversity of Zagreb
School of Medicine
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Basic Medical Sciences
Abstract (english)
Two different copper complexes with cytosine molecules are formed in the process of crystal growth from the aqueous solution with traces of copper. One of them is diamagnetic, turning into paramagnetic upon ionizing irradiation (complex I). The other, the subject of the present study, is paramagnetic (complex II) as prepared. For complex II, EPR spectra demonstrate that the copper ion is coordinated with one nitrogen atom and three oxygen atoms. On the basis of the detailed EPR spectroscopic analysis and quantum-chemical calculations (in the DFT approach) the model of the complex has been proposed. Both experimental data and the theoretical results support the model with the copper atom, located between the two cytosine ribbons, ligated to a nitrogen and an oxygen atom from two opposing cytosine molecules and two oxygen atoms from water molecules. For complex II the Raman spectra demonstrated concerted restructuring of the hydrogen bonding in the cytosine crystal matrix upon insertion of copper ions.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review
Publication versionAccepted version
Journal titleSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Numberingvol. 70, no. 5, pp. 1238-1242
p-ISSN1386-1425
DOIhttps://doi.org/10.1016/j.saa.2008.01.013
URN:NBNurn:nbn:hr:105:415564
Publication2008-10
Document URLhttp://doi.org/10.1016/j.saa.2008.01.013
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-03-28 11:06:31