Two-Dimensional Honeycomb Lattice Consisting of a New Organic Radical 2-Cl-6-F-V
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概要
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We have successfully synthesized new organic radical crystals of 2-Cl-6-F-V [= 3-(2-chloro-6-fluorophenyl)-1,5-diphenylverdazyl]. Two types of dominant intermolecular interactions forming a honeycomb lattice are deduced from the molecular packing in the crystal, and ab initio molecular orbital calculation also indicate such an exchange network. We analyzed the magnetic and thermodynamic properties by using the quantum Monte Carlo method and successfully explained these properties as an S = 1/2 Heisenberg honeycomb lattice with ferromagnetic chain interactions. Our results indicate that 2-Cl-6-F-V is one of the few examples of a purely organic radical compound that forms two-dimensional lattices, and this paper presents the first complete, quantitative description of an actual honeycomb lattice material.
- 2013-04-15
著者
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Iwase Kenji
Department Of Applied Chemistry Interdisciplinary School Of Medicine And Engineering University Of Y
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Ono Toshio
Department Of Oral Biochemistry Nagasaki University School Of Dentistry
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Hosokoshi Yuko
Department Of Material Science College Of Integrated Arts And Sciences Osaka Prefecture University
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Kawakami Takashi
Department Of Biomolicular Engineering Tokyo Institute Of Technology
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Matsuo Akira
Institute For Chemical Research Kyoto University
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Yamaguchi Hironori
Department of Physical Science, Osaka Prefecture University, Sakai 599-8531, Japan
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Shimokawa Tokuro
Center for Collaborative Research and Technology Development, Kobe University, Kobe 657-8501, Japan
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Toho Asano
Department of Physical Science, Osaka Prefecture University, Sakai 599-8531, Japan
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Matsuo Akira
Institute for Solid State Physics, the University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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