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Inne
A new photoluminescent coordination polymer constructed with an N-donor ligand having extended coordination capabilities derived from quinoline and pyridine.
Autorzy
Rok wydania
2020
Czasopismo
Acta Crystallographica Section C: Structural Chemistry
Numer woluminu
C76
Strony
500-506
DOI
10.1107/s2053229620004593
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Employment of the organic 2-(pyridin-4-yl)quinoline-4-carboxylic acid ligand with extended coordination capabilities leads to the formation of the one-dimensional copper(II) coordination polymer catena-poly[[diaquacopper(II)]-bis[μ-2-(pyridin-4-yl)quinoline-4-carboxylato]-κ2N2:O;κ2O:N], {[Cu(C15H9N2O2)2(H2O)2]·2H2O}n, under hydrothermal conditions. The ligand, isolated as its hydrochloride salt, namely, 4-(4-carboxyquinolin-2-yl)pyridinium chloride monohydrate, C15H11N2O2+·Cl-·H2O, reveals a pseudosymmetry element (translation a/2) in its crystal structure. The additional pyridyl N atom, in comparison with the previously reported analogues with an arene ring instead of the pyridyl ring in the present ligand molecule, promotes the formation of a one-dimensional coordination polymer, rather than discrete molecules. This polymer shows photoluminescent properties with bathochromic/hypsochromic shifts of the ligand absorption bands, leading to a single band at 479 nm. The CuII ions are involved in weak antiferromagnetic interactions within dimeric units, as evidenced by SQUID magnetometry.
Słowa kluczowe
photoluminescence, magnetic properties, one-dimensional coordination polymer, chloride, pyridinium, quinoline, crystal structure
Adres publiczny
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