Chlorine-35 NQR study of a structural phase transition in (ND4)2PdCl6

被引:4
|
作者
Kume, Y
Asaji, T
机构
[1] Azabu Univ, Coll Environm Hlth, Dept Basic Sci, Sagamihara, Kanagawa 229, Japan
[2] Azabu Univ, Biosci Res Inst, Sagamihara, Kanagawa 229, Japan
[3] Nihon Univ, Coll Humanities & Sci, Dept Chem, Setagaya Ku, Tokyo 156, Japan
关键词
isotope effect; phase transition; chlorine NQR; spin-lattice relaxation; deuterated ammonium hexachloropalladate;
D O I
10.1515/zna-1998-6-738
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
dependences of (SCl)-S-35 NQR frequencies and spin-lattice relaxation times were measured at 4.2 to 400 K for natural and deuterated ammonium hexaohloropalladate. It was confirmed that only the deuterated salt undergoes a first order phase transition at 30 K. The crystal structure of the low-temperarure phase is predicted to be the same as that of the deuterated ammonium hexachloroplatinate and hexachloroplumbate. The mechanism of the deuteration-induced phase transition is discussed.
引用
收藏
页码:514 / 517
页数:4
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