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Pregled bibliografske jedinice broj: 202809

EPR study of a copper impurity center in a single crystal of 2-thiothymine


Bešić, Erim; Gomzi, Vjeran; Sanković, Krešimir; Herak, Janko N.; Krilov, Dubravka
EPR study of a copper impurity center in a single crystal of 2-thiothymine // Spectrochimica acta. Part A : Molecular and biomolecular spectroscopy, 61 (2005), 13/14; 2803-2808 doi:10.1016/j.saa.2004.10.026 (međunarodna recenzija, članak, znanstveni)


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Naslov
EPR study of a copper impurity center in a single crystal of 2-thiothymine

Autori
Bešić, Erim ; Gomzi, Vjeran ; Sanković, Krešimir ; Herak, Janko N. ; Krilov, Dubravka

Izvornik
Spectrochimica acta. Part A : Molecular and biomolecular spectroscopy (1386-1245) 61 (2005), 13/14; 2803-2808

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
copper-thiothymine complex; EPR; 2-thiothymine

Sažetak
EPR spectroscopy was used to study the complex formed in crystals of 5-methyl-2-thiouracil (2-thiothymine) containing traces of copper. The copper impurities, originally present as Cu(I)-complex of 2-thiothymine in the lattice of 2-thiothymine, are transformed into paramagnetic Cu(II)-complex by ionizing radiation. It was found that the complex is planar, the plane being defined by two pairs of S and N atoms, from two adjacent 2-thiothymine molecules. The structure of the complex suggests that a pair of hydrogen bonds between two neighboring molecules is replaced by a stronger Cu-coordination bonding, with two sulfur and two nitrogen atoms as ligands. The spectroscopic parameters (g-tensor, A(63Cu) and A(14N) tensors) are essentially similar to those earlier observed for copper planar centers in other systems.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Biologija



POVEZANOST RADA


Projekt / tema
0006421

Ustanove
Farmaceutsko-biokemijski fakultet, Zagreb

Profili:

Avatar Url Janko Herak (autor)

Avatar Url Erim Bešić (autor)

Avatar Url Dubravka Krilov (autor)

Avatar Url Krešimir Sanković (autor)

Avatar Url Vjeran Gomzi (autor)

Citiraj ovu publikaciju

Bešić, Erim; Gomzi, Vjeran; Sanković, Krešimir; Herak, Janko N.; Krilov, Dubravka
EPR study of a copper impurity center in a single crystal of 2-thiothymine // Spectrochimica acta. Part A : Molecular and biomolecular spectroscopy, 61 (2005), 13/14; 2803-2808 doi:10.1016/j.saa.2004.10.026 (međunarodna recenzija, članak, znanstveni)
Bešić, E., Gomzi, V., Sanković, K., Herak, J. & Krilov, D. (2005) EPR study of a copper impurity center in a single crystal of 2-thiothymine. Spectrochimica acta. Part A : Molecular and biomolecular spectroscopy, 61 (13/14), 2803-2808 doi:10.1016/j.saa.2004.10.026.
@article{article, year = {2005}, pages = {2803-2808}, DOI = {10.1016/j.saa.2004.10.026}, keywords = {copper-thiothymine complex, EPR, 2-thiothymine}, journal = {Spectrochimica acta. Part A : Molecular and biomolecular spectroscopy}, doi = {10.1016/j.saa.2004.10.026}, volume = {61}, number = {13/14}, issn = {1386-1245}, title = {EPR study of a copper impurity center in a single crystal of 2-thiothymine}, keyword = {copper-thiothymine complex, EPR, 2-thiothymine} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI


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  • CA Search (Chemical Abstracts)


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