Repozytorium

Structure and characterization of copper(II) perchlorate with diethyl(pyridin-2-ylmethyl) phosphonate (2-pmpe)ligand: [Cu(2-pmpe)2(CIO4)2].

Autorzy

Bogumiła Żurowska

Agata Białońska

Justyn Ochocki

Rok wydania

2009

Czasopismo

Materials Science-Poland

Numer woluminu

27

Strony

987-998

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

Copper(II) mononuclear compound [Cu(2-pmpe)2(ClO4)2] (2-pmpe = diethyl(pyridin-2-ylmethyl) phosphonate was synthesized and studied. Examination of the crystal structure by the X-ray diffraction method revealed two crystallographically unrelated molecules, [Cu(1)(2-pmpe)2(ClO4)2] (1) and [Cu(2)(2-pmpe)2(ClO4)2] (2) in an asymmetric part of the unit cell. The geometry about the Cu(1) and Cu(2) chromophores shows elongated octahedra, resulting from the didentate N,O-bonded two chelate 2-pmpe ligands and two coordinated perchlorate ions around the Cu(II) cations (CuN2O4 chromophore). Similarly to 1, molecules 2 are linked to each other by weak C–H⋅⋅⋅O hydrogen bonds and π⋅⋅⋅π stacking interactions. Additionally, both 1 and 2 molecules are linked to each other through weak C–H⋅⋅⋅O hydro-gen bonds and C–H⋅⋅⋅π contacts, resulting in a 3Dpolymeric network arrangement. Magnetic data indi-cate a very weak intermolecular exchange interaction between copper(II) ions (zJ′ = –0.20 cm–1) transmit-ted through non-covalent interactions in the crystal lattice. The spectral properties are in accordance with the structural and magnetic data.

Słowa kluczowe

copper(II), phosphonic acid ester, crystal structure, spectroscopy, magnetism

Adres publiczny

https://materialsscience.pwr.edu.pl/bi/vol27no4/articles/ms_06_2008_267zuro.

Strona internetowa wydawcy

https://www.degruyter.com

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