title: Direct synthesis, crystal structures, high-field EPR, and magnetic studies of heterometallic polymers containing manganese(II) carboxylates interconnected by [Cu(en)2]2+.
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.
authors.affiliation: Department of Inorganic Chemistry, National Taras Shevchenko University, Kyiv, Ukraine.
authors.forename: Valeriya G
authors.initials: VG
authors.lastname: Makhankova
authors.forename: Asya O
authors.initials: AO
authors.lastname: Beznischenko
authors.forename: Vladimir N
authors.initials: VN
authors.lastname: Kokozay
authors.forename: Roman I
authors.initials: RI
authors.lastname: Zubatyuk
authors.forename: Oleg V
authors.initials: OV
authors.lastname: Shishkin
authors.forename: Julia
authors.initials: J
authors.lastname: Jezierska
authors.forename: Andrew
authors.initials: A
authors.lastname: Ozarowski