^2H, ^1H NMR法による[Pt(en)_2] [PtX_2(en)_2] (SO_4)_2・6H_2O結晶中における水分子の動的挙動の研究

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Title Alternative
Dynamic Behavior of H_2O Molecules in [Pt(en)_2] [PtX_2(en)_2] (SO_4)_2・6H_2O Studied by ^2H and ^1H NMR
Authors
Oe, Mami
KIMURA, Noriyoshi Faculty of Education 和歌山大学研究者総覧 researchmap
Self DOI
10.19002/AN00257977.56.27
Journal Title
Bulletin of the Faculty of Education, Wakayama University. Natural science
ISSN
13424645
NCID
AN00257977
Volume
56
Start Page
27
End Page
29
Order
07
Published Date
2006-02-28
Language
jpn
Abstract Alternative
We measured the temperature dependences of ^2H NMR spectra and ^1H spin-lattice relaxation time (T_1) in [Pt (en)_2] [PtX_2(en)_2] (SO_4)_2・6H_2O (X:Cl and I). The obtained ^2H NMR spectra and ^1H T_1 at T>250K were attributable to the 180°flip motion of the water molecule. The activation energy and the correlation time at infinite temperature for the 180°flip of H_2O were evaluated to be Ea=27 kJ mol^<-1> and τ_0=1.0×10^<-13>s, respectively. These results suggest that the network of the hydrogen bond through H_2O molecules is strongly linked in the crystal.
Content Type
Departmental Bulletin Paper
Text Version
publisher
Accession No.
KJ00004438613