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Syntheses, structures and magnetic studies of three heterometallic Fe2Ln 1D coordination polymers

Annie K. Powell, Kostakis Georgios, Christopher E. Anson, Yanhua Lan, Sudarshana Mukherjee

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/DB086756-C3D5-43C4-AB23-2128E8283DC9
Έτος 2009
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά S. Mukherjee, Y. Lan, G. Novitchi, G. E. Kostakis, C. E. Anson, and A. K. Powell, "Syntheses, structures and magnetic studies of three heterometallic Fe2Ln 1D coordination polymers", Polyhedron, vol. 28, no. 9-10, pp. 1782-1787, Jun. 2009. doi:10.1016/j.poly.2008.12.003 https://doi.org/10.1016/j.poly.2008.12.003
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Περίληψη

Three new heterometallic 1D coordination polymers [FeIII2Pr(4-Me-sal)4(2,2′-bipy)2(H2O)6](NO3) · 2MeOH · 1.5H2O (1), [FeIII2Gd(4-Me-sal)4(2,2′-bipy)2(H2O)5]Cl1/2(NO3)1/2 · 5H2O (2) and [FeIII2Dy(4-Me-sal)4(2,2′-bipy)2(H2O)5]Cl1/2(NO3)1/2 · 5H2O (3) have been synthesized. 1 and 2 were characterized by single-crystal X-ray crystallography, and 3 was shown to be isomorphous to 2 by X-ray powder diffraction. Magnetic studies show that the three compounds show a similar temperature dependence of their magnetic susceptibilities over the range 1.8–300 K. The observed decrease of χT with decreasing temperature for all three compounds could be the result of antiferromagnetic interactions between Fe–Ln centres and/or the depopulation of the Stark sublevels in the case of the anisotropic Ln ions (PrIII and DyIII).

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