Abstract
Four new complexes of [14]N4 macrocyclic oxamides, namely [CuL1], [CuL2], [(CuL1)3Mn](ClO4)3 and [(CuL2)3 Mn](ClO4)3 [L1 and L2 are the dianions of 2,3-dioxo-5,6: 3,14-dibenzo-7,12-bis(ethoxycarbonyl)-1,4,8,11-tetraazacyclotetradeca-7,11-diene (H2L1) and 2,3-dioxo-5,6:13,14-dibenzo-9-methyl-7,12-bis(ethoxycarbonyl)-1,4,8,11-tetraazacyclo-tetradeca-7,11-diene (H2L2), respectively], have been prepared and characterized. The observed magnetic susceptibilities of the [(CuL1)3Mn] (ClO4)3 complex over the ca. 2–300 K range have been fitted to theoretical equations based on the Heisenberg spin Hamiltonian Ĥ=−2JŜMn(ŜCu1+ ŜCu2+ŜCu3) and molecular field approximation. The results indicated that both the intramolecular and intermolecular magnetic interactions are antiferromagnetic with JCuMn= −19.8cm−1 and zJ′=−1.41cm−1.
Similar content being viewed by others
References
O. Kahn, Adv. Inorg. Chem., 43, 179 (1996).
O. Sato, T. Iyoda, A. Fujishima, K. Hashimoto, Science, 271, 49 (1996).
P. A. Vigato, S. Tamburini and D. E. Fenton, Coord. Chem. Rev., 106, 25 (1990).
S. Mohanta, K. K. Nanda, R. Werner, W. Haase, A. K. Mukherjee, S. K. Dutta and K. Nag, Inorg. Chem., 36, 4656 (1997).
K. K. Nanda, A. W. Addison, N. Paterson, E. Sinn, L. K. Thompson and U. Sakaguchi, Inorg. Chem., 22, 225 (1997).
D. Christodoulou, M. G. Kanatzidis and D. Coucouvanis. Inorg. Chem., 29, 191 (1990).
D. St. C. Black and G. I. Moss, Aust. J. Chem., 40, 129 (1987).
P. W. Selwood, Magnetochemistry, Interscience, New York, 1956, p. 78.
F. Lloret, M. Julve, J. Faus, R. Ruiz, I. Castro, M. Mollar, M. Philoche-Levisalles, Inorg. Chem., 31, 784(1992).
W. J. Geary, Coord. Chem. Rev., 7, 81(1971).
B. J. Hathaway and A. E. Underhill, J. Chem. Soc., 3091(1961).
F. Lloret, Y. Journaux and M. Julve, Inorg. Chem., 29, 3967(1990).
W. Kanda, M. Nakamura, H. Okawa and S. Kida, Bull. Chem. Soc. Jpn., 55, 471(1982).
A. Bencini, C. Benelli, A. Caneschi, R. L. Carlin, A. Dei and D. Gatteschi, J. Am. Chem. Soc., 107, 8128(1985).
K. Kambe, J. Phys. Soc. Jpn., 5, 48(1950).
C. J. O'Connor, Prog. Inorg. Chem., 29, 203(1982).
O. Kahn, Struct. Bonding, 68, 89(1987).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gao, EQ., Yang, GM., Liao, DZ. et al. Magnetic properties of new copper(II) and [copper(II)]3-manganese(II) complexes of [14]N4 macrocyclic oxamides. Transition Metal Chemistry 24, 244–246 (1999). https://doi.org/10.1023/A:1006933707700
Issue Date:
DOI: https://doi.org/10.1023/A:1006933707700