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Number of results
2001 | 100 | 5 | 799-805

Article title

Time Differential Perturbed Angularγγ-Correlation Studies of Diethylenetriaminepentaacetic Acid Complexes with ^{111}In and ^{111m}Cd

Content

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Languages of publication

EN

Abstracts

EN
Static and dynamic electric quadrupole interactions of ^{111}Cd in complexes with diethylenetriaminepentaacetic acid were studied by the time differential perturbed angular γγ-correlation technique using two parent isotopes, ^{111}In(EC)^{111}Cd and ^{111 m}Cd. The measurements were carried out using neutral aqueous solutions of the diethylenetriaminepentaacetic- acid-complexes with initial isotopes at 293 K and 77 K. It was shown that the ^{111}Cd-diethylenetriaminepentaacetic-acid-complex in aqueous solutions at pH = 7.0 is characterised by the re-orientational correlation time of 7.7×10^{-11} s and an electric field gradient V_{zz}=6.7(2)×10^{21} V/m^2 with an asymmetry parameter η=0.75(5). A direct comparison of the electric quadrupole interaction parameters for diethylenetriaminepentaacetic- acid-complexes with ^{111}In and ^{111m}Cd confirmed the proposal about the fragmentation of the complexes caused by the after-effects of electron capture in ^{111}In. An observed difference in the electric quadrupole interaction parameters obtained for the solutions with ^{111}In and ^{111m}Cd complexes reflects a process of a chemical rearrangement of the complex structure after the In decay into Cd

Keywords

EN

Contributors

author
  • Department of Nuclear Spectroscopy Methods, Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119899, Russian Federation
author
  • Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, P.O. Box 11049, 05422-970, São Paulo - SP, Brazil
author
  • Department of Nuclear Spectroscopy Methods, Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119899, Russian Federation
  • Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, P.O. Box 11049, 05422-970, São Paulo - SP, Brazil

References

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  • 3. K.J. Hwang, in: Liposome Technology, Ed. G. Gregoriadis, CRC Press Inc., Boca Raton (USA) 1984, Ch. 16
  • 4. Z.Z. Akselrod, V.N. Kulakov, L.G. Shpinkova, A.A. Sorokin, in: Book of Abstracts of 14th Int. Symp. on Nuclear Quadrupole Interactions, Pisa (Italy) 1997, Istituto di Chimica Quantistica ed Energetica Molecolare (ICQEM), Consiglio Nazionale delle Ricerche, p. 77
  • 5. A.L. Martell, R.M. Smith, Critical Stability Constants, Plenum Press, New York 1974
  • 6. A. Abragam, R.V. Pound, Phys. Rev., 84, 369, 1953
  • 7. P.C. Hargrave, F.A. Smith, K. Bown, R. Carr, Chem. Phys. Lett., 246, 626, 1995
  • 8. V.N. Kulakov, A.A. Sorokin, Z.Z. Akselrod, A.N. Shirokov, L.G. Shpinkova, Vestnik MGU, seriya Khimiya, 39, 305, 1998
  • 9. L.G. Shpinkova, V.N. Kulakov, A.A. Sorokin, G.K. Ryasny, B.A. Komissarova, S.M. Nikitin, Z. Naturforsch. A, 53, 630, 1998

Document Type

Publication order reference

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bwmeta1.element.bwnjournal-article-appv100n510kz
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