Inorg. Chem., 47 (11), 4554–4563, 2008. 10.1021/ic702017p
Web Release Date: May 7, 2008

Copyright © 2008 American Chemical Society

Direct Synthesis, Crystal Structures, High-Field EPR, and Magnetic Studies of Heterometallic Polymers Containing Manganese(II) Carboxylates Interconnected by [Cu(en)2]2+

Valeriya G. Makhankova,† Asya O. Beznischenko,† Vladimir N. Kokozay,† Roman I. Zubatyuk,‡ Oleg V. Shishkin,‡ Julia Jezierska,§ and Andrew Ozarowski*∥

Department of Inorganic Chemistry, National Taras Shevchenko University, Volodymyrska Street 64, Kyiv 01033, Ukraine, STC “Institute for Single Crystals”, National Academy of Sciences of Ukraine, 60 Lenina Avenue, Kharkiv 61001, Ukraine, Faculty of Chemistry, University of Wroclaw, 14 F. Joliot-Curie, 50-383 Wroclaw, Poland, and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310

Received October 11, 2007

Abstract:

Two heterometallic polymers containing cations [Cu(en)2]2+ and either the [Mn(mal)2(H2O)2]2− (1) or [Mn2(succ)2Cl2]n2n− (2) anions (mal = malonate and succ = succinate) were investigated by X-ray crystallography, high-field electron paramagnetic resonance (EPR) spectroscopy, and magnetic susceptibility measurements. Magnetic susceptibility and EPR spectra characteristic of antiferromagnetically coupled Mn2+−Mn2+ pairs were observed in 2, and the exchange integral J = 31 cm−1 (H = JS1S2) as well as the zero-field-splitting parameter D = −3.046 cm−1 in the triplet state of the dimanganese entity was determined.

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