Synthesis, crystal structures and magnetic properties of Schiff bases with α-nitronyl aminoxyl

Abstract

Schiff bases with α-nitronyl aminoxyl 1a-1f were prepared and characterized with EA, MS, ESR and X-ray diffraction analysis. Magnetic investigations indicated that compounds 1b, 1c and 1e showed ferromagnetic properties while compounds 1a, 1d and 1f displayed antiferromagnetic behavior. Discussions in connection with the magneto-structural relation are also presented.

References

1. (a) A. Rassat, Pure Appl. Chem., 1990, 62, 233; (b) S. Nakatsuji and H. Anzai, J. Mater. Chem., 1997, 7, 2161.
2. A. L. Buchachkenko, Mol. Cryst. Liq. Cryst., 1989, 176, 307.
3. H. Iwamura, Adv. Phys. Org. Chem., 1990, 26, 179.
4. (a) K. Awaga and Y. Maruyama, Chem. Phys. Lett., 1989, 158, 556; (b) D. Zhang, W. Zhou, H. Wang and D. Zhu, Synth. Met., 1993, 55–57, 1694.
5. (a) T. Nogami, K. Tomioka, T. Ishida, H. Yoshikawa, M. Yasui, F. Iwasaki, H. Iwamura, N. Takeda and M. Ishikawa, Chem. Lett., 1994, 29; (b) T. Ishida, H. Tsuboi, T. Nogami, H. Yoshikawa, M. Yasui, F. Iwasaki, H. Iwamura, N. Takeda and M. Ishikawa, Chem. Lett., 1994, 919.
6. M. Buivydas, Phys. Status Solidi B, 1991, 168, 577.
7. With the program SHELXS-86, G. M. Sheldrick, Program for the solution of crystal structures, University of Göttingen, Germany, 1985.
8. E. F. Ullman, J. H. Osiecki, D. G. B. Brocock and R. Darcy, J. Am. Chem. Soc., 1972, 94, 7049.
9. B. Zhang, D. Zhang and D. Zhu, Chin. J. Struct. Chem., 1994, 13, 180.
10. (a) M. Kinoshita, Mol. Cryst. Liq. Cryst., 1993, 232, 1; (b) M. Kinoshita, Jpn. J. Appl. Phys., 1994, 33, 5718.
11. (a) A. Zheludev, V. Barone, M. Bonnet, B. Delley, A. Grand, E. Ressouche, P. Rey, R. Subra and J. Schweizer, J. Am. Chem. Soc., 1994, 116, 2019; (b) A. Zheludev, E. Ressouche, J. Schweizer, P. Turek, M. X. Wan and H. L. Wang, J. Magn. Magn. Mater., 1995, 140–144, 1441.
12. H. M. McConnel, J. Chem. Phys., 1963, 39, 1910.
13. R. S. Drago, Physical Methods of Chemistry, Saunders, Philadephia, PA, 1977, p. 329.