Curious Phase Transition in 4,4'-Dichlorobenzophenone as Studied by ^<35>Cl NQR

スポンサーリンク

概要

• 論文の詳細を見る

• A curious phase transition in the crystals of 4,4'-dichlorobenzophenone has beenfound to occur at 331 *2 K by DTA and "Cl NQR measurements. A single NQR lineobserved at room temperature splits into two lines above 331 K. The frequencydifference between these two lines (d v) becomes large as temperature increases andthe relation Avl(T -320) holds in the temperature region up to the melting point(418 K). A quasi-continuous nature of the transition reflects on this behavior of ,l v.The symmetry in the high-temperature phase is lower than that in the room-temperature phase. It is probable that the transition accompanies the symmetry lowering ofthe molecular structure in the high-temperature phase of the crystal."Cl NQR, DTA, 4,4'-dichlorobenzophenone, phase transition

• 社団法人日本物理学会の論文
• 1991-12-15

著者

• Eguchi Taro

  Institute Of Chemistry College Of General Education

• NAKAYAMA Hirokazu

  Institute of Chemistry,College of General Education,Osaka University

• Nakayama Hirokazu

  Institute Of Chemistry College Of General Education Osaka University

関連論文

• Intercalation of Methylene Blue into Layered Phosphate in the Presence of Butylamine and Function of Alkylamine in the Intercalation Reaction
• ^N Nuclear Quadrupole Resonance and Relaxation in 2,5-Dimethyipyrazine : Evidence of Level Crossing between NQR and Tunnel Systems
• Curious Phase Transition in 4,4'-Dichlorobenzophenone as Studied by ^Cl NQR
• Phase Transition in trans-Azobenzene as Studied by ^N NQR
• 1H and 79Br NMR in 1,4-didecyl-1,4-diazoniabicyclo[2.2.2]octane dibromide and diiodide.
• 1H and 19F nuclear magnetic relaxation studies of molecular motion in solid fluoroform.

スポンサーリンク