We have succeeded in synthesizing two types of new organic radical crystals 3-I-V [= 3- (3-iodophenyl)-1,5-diphenylverdazyl] and 3-Br-4-F-V [= 3-(3-bromo-4-fluorophenyl)-1,5- diphenylverdazyl]. Their crystal strucutures are found to be isomorphous to that of previously reported spin ladder 3-Cl-4-F-V. Through the quantitative analysis of their molecular arrangements and magnetic properties, we confirm that these materials form ferromagnetic chain-based spin ladders with slightly modulated magnetic interactions. These results present the first quantitative demonstration of the fine-tuning of magnetic interactions in the molecular- based materials.
@article{arxiv.1402.2743,
title = {Fine-Tuning of Magnetic Interactions in Organic Spin Ladders},
author = {Hironori Yamaguchi and Hirotsugu Miyagai and Tokuro Shimokawa and Kenji Iwase and Toshio Ono and Yohei Kono and Naoki Kase and Koji Araki and Shunichiro Kittaka and Toshiro Sakakibara and Takashi Kawakami and Kouichi Okunishi and Yuko Hosokoshi},
journal= {arXiv preprint arXiv:1402.2743},
year = {2015}
}
Comments
11 pages, 4 figures, to appear in J. Phys. Soc. Jpn