155Gd Moessbauer spectra of GdM(CN)6 nH2O and KGdM(CN)6 nH2O.
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Accession number;01A0231210
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| Title;155Gd Moessbauer spectra of GdM(CN)6 nH2O and KGdM(CN)6 nH2O. |
| Author;
KITAZAWA TAKAFUMI
(Toho Univ., Fac. of Sc.)
ABE JUNKO
(Toho Univ., Fac. of Sc.)
WANG J
(Toho Univ., Fac. of Sc.)
TAKAHASHI MASASHI
(Toho Univ., Fac. of Sc.)
TAKEDA MASUO
(Toho Univ., Fac. of Sc.)
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Journal Title;Abstracts of Papers. Symposium on Radiochemistry
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Journal Code:F0139B
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ISSN:1345-2762
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VOL.44th;NO.;PAGE.53(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;155Gd Moessbauer spectra for the coordination polymer GdFe(CN)6 4H2O (I) and KGdFe(CN)6 3H2O (II), in which [Fe(CN)6]n- units are bonded to Gd3+ through CN-, are measured at 12 K. The isomer shift (.DELTA.; relative to the 155Eu/SmPd3 Moessbauer source) and quadrupole coupling constant for I are 0.61 and 4.24 mm s-1, while those for II are 0.54 and 4.49 mm s-1. The Moessbauer parameters suggest that both complex have the same coordination geometry of GdN6O2. The small difference in the value of .DELTA. suggest that the electronic state of Gd3+ would be slightly affected by the oxidation state of iron ion. The electronic state of Gd3+ might be also affected by the chemical species included in the cavity of the crystal structure, i.e., water (I) or water and K+ (II). (author abst.) |
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