Affiliation:
1. Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
Abstract
Abstract
Bright yellow crystals of 1
∞[Eu(Pz)2(Pz-H)2] were obtained by the reaction of europium metal with a melt of pyrazole. According to single crystal X-ray analysis the compound exhibits a onedimensional chain structure including both unsubstituted pyrazolate anions as well as unsubstituted neutral pyrazole molecules as ligands. The latter are isoelectronic with the cyclopentadienyl anion and link two adjacent Europium(II) centers in an η1-σ -bridging as well as Cp analogous η5-π-binding mode, whilst the pyrazolate anions are N-η1-coordinating terminal ligands. In addition to the crystal structure, MIR, FarIR, Raman and UV/vis spectroscopic data are presented.
Cited by
27 articles.
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1. Replacing Mercury: Syntheses of Lanthanoid Pyrazolates from Free Lanthanoid Metals, Pentafluorophenylsilver, and Pyrazoles, Aided by a Facile Synthesis of Polyfluoroarylsilver Compounds;European Journal of Inorganic Chemistry;2019-02-06
2. Unique and contrasting structures of homoleptic lanthanum(iii) and cerium(iii) 3,5-dimethylpyrazolates;Dalton Transactions;2018
3. The Synthesis, Structures and Polymorphism of the Dimeric Trivalent Rare‐Earth 3,5‐Dimethylpyrazolate Complexes [Ln(Me
2
pz)
3
(thf)]
2;European Journal of Inorganic Chemistry;2014-04-04
4. Alkaline earth imidazolate coordination polymers by solvent free melt synthesis as potential host lattices for rare earth photoluminescence: x∞[AE(Im)2(ImH)2–3], Mg, Ca, Sr, Ba, x = 1–2;Dalton Transactions;2012
5. MOFs by Transformation of 1D-Coordination Polymers II: The Homoleptic Divalent Rare Earth 3D Benzotriazolate $\rm ^3_\infty[Eu(Btz)_2]$ Initiating from $\rm ^1_\infty[Eu(Btz)_2(BtzH)_2]$;Zeitschrift für anorganische und allgemeine Chemie;2010-04-22