Affiliation:
1. Institute of Chemistry, University of Silesia, Katowice, Poland
2. Institute of Physics, University of Silesia, Katowice, Poland
Abstract
? novel manganese(II) coordination polymer, catena-(2- methylimidazolium
bis(?2-chloro)-aqua-chloromanganese(II)), {(C4H7N2)[MnCl3(H2O)]}n, was
synthesized, structurally characterized by FTIR spectroscopy and confirmed by
single crystal X-ray diffraction analysis. Thermogravimetric analysis and EPR
spectroscopy of the compound were also performed. The colourless crystals of
the complex were monoclinic, space group P21/c, with the cell parameters a =
11.298(2) ?, b = 7.2485(14) ?, c = 14.709(5) ?, ? = 128.861(18)?, V =
938.0(5) ?3, Z = 4 and R1 = 0.03. The title compound consisted of
onedimensional infinite anionic chains [MnCl3(H2O)]n and isolated 2-
methylimidazolium cations. The Mn(II) atom was octahedrally coordinated to
four bridging chloride anions [Mn-Cl = 2.5109(6) - 2.5688(7) ?], one terminal
chloride anion [Mn-Cl = 2.5068(11) ?] and a H2O molecule [Mn-O = 2.2351(17)
?]. A three-dimensional layer structure was constructed via hydrogen bonds
and by weak ?-? stacking interactions. A four-step thermal decomposition
occurred in the temperature range 25-900?C under nitrogen.
Publisher
National Library of Serbia
Cited by
6 articles.
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