title: Solvent-Induced Change of Electronic Spectra and Magnetic Susceptibility of Co(II) Coordination Polymer with 2,4,6-Tris(4-pyridyl)-1,3,5-triazine.
abstract: One-dimensional coordination polymer [Co(Piv)2(4-ptz)(C2H5OH)2]n (compound 1, Piv(-) = pivalate, 4-ptz = 2,4,6-tris(4-pyridyl)-1,3,5-triazine) was synthesized by interaction of Co(II) pivalate with 4-ptz. Desolvation of 1 led to formation of [Co(Piv)2(4-ptz)]n (compound 2), which adsorbed N2 and H2 at 78 K as a typical microporous sorbent. In contrast, absorption of methanol and ethanol by 2 at 295 K led to structural transformation probably connected with coordination of these alcohols to Co(II). Formation of 2 from 1 was accompanied by change of color of sample from orange to brown and more than 2-fold decrease of molar magnetic susceptibility (χM) in the temperature range from 2 to 300 K. Resolvation of 2 by ethanol or water resulted in restoration of spectral characteristics and χM values almost to the level of that of 1. χMT versus T curves for 1 and samples, obtained by resolvation of 2 by H2O or C2H5OH, were fitted using a model for Co(II) complex with zero-field splitting of this ion.
authors.affiliation: †L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine, Prospekt Nauki 31, Kiev, 03028, Ukraine.
authors.forename: Ruslan A
authors.initials: RA
authors.lastname: Polunin
authors.affiliation: ‡N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation.
authors.forename: Nataliya P
authors.initials: NP
authors.lastname: Burkovskaya
authors.affiliation: †L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine, Prospekt Nauki 31, Kiev, 03028, Ukraine.
authors.forename: Juliya A
authors.initials: JA
authors.lastname: Satska
authors.affiliation: †L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine, Prospekt Nauki 31, Kiev, 03028, Ukraine.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Kolotilov
authors.affiliation: ‡N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation.
authors.forename: Mikhail A
authors.initials: MA
authors.lastname: Kiskin
authors.affiliation: ‡N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation.
authors.forename: Grigory G
authors.initials: GG
authors.lastname: Aleksandrov
authors.affiliation: §Equipe Organométalliques Matériaux et Catalyse, Sciences Chimiques de Rennes, UMR UR1-CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Cador
authors.affiliation: §Equipe Organométalliques Matériaux et Catalyse, Sciences Chimiques de Rennes, UMR UR1-CNRS 6226, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes cedex, France.
authors.forename: Lahcène
authors.initials: L
authors.lastname: Ouahab
authors.affiliation: ‡N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 31, 119991 Moscow, GSP-1, Russian Federation.
authors.forename: Igor L
authors.initials: IL
authors.lastname: Eremenko
authors.affiliation: †L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine, Prospekt Nauki 31, Kiev, 03028, Ukraine.
authors.forename: Vitaly V
authors.initials: VV
authors.lastname: Pavlishchuk