Direct synthesis, crystal structures, high-field EPR, and magnetic studies of heterometallic polymers containing manganese(II) carboxylates interconnected by [Cu(en)(2)](2+)

Makhankova VG; Beznischenko AO; Kokozay VN; Zubatyuk RI; Shishkin OV; Jezierska J; Ozarowski A

Inorganic Chemistry, Vol.47, No.11, 4554-4563, 2008

DOI10.1021/ic702017p Export Citation

Direct synthesis, crystal structures, high-field EPR, and magnetic studies of heterometallic polymers containing manganese(II) carboxylates interconnected by [Cu(en)(2)](2+)

Makhankova VG, Beznischenko AO, Kokozay VN, Zubatyuk RI, Shishkin OV, Jezierska J, Ozarowski A

Two heterometallic polymers containing cations [Cu(en)(2)](2+) and either the [Mn(mal)(2)(H2O)(2)](2-) (1) or [Mn-2(succ)(2)Cl-2](n)(2n-) (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 = JS(1)S(2)) as well as the zero-field-splitting parameter D = -3.046 cm(-1) in the triplet state of the dimanganese entity was determined.