Synthesis, Crystal Structures, and Properties of Two Compounds Based on Carboxylate-Sulfonate Ligand
2021
Two coordination compounds, Mn2(L)2(bipy)4(H2O)4·Mn(bipy)2(H2O)4
(1) and
Cu(phen)2Cl·H2L (2)
(H3L =
4-sulfophthalic acid; bipy = 4,4′-bipyridine; phen = 1,10-phenanthroline), have
been synthesized by the hydrothermal method and characterized by elemental
analyses, IR spectra and single crystal X-ray diffraction. Compound 1 is a discrete trinuclear complex, composed of
L3–-bridging
dinuclear and N-donor mononuclear units. Two units are extended into a
two-dimensional supra-molecular structure via hydrogen bonds and π–π
interactions between bipy molecules. Compound 2
features the N-donor mononuclear structure with uncoordinated
H2L– anion. The
H2L– anions are interconnected by
H-bonding interactions generating one-dimensional double-chain structures. In
the solid state, compounds 1 and 2 exhibit photoluminescence with emissions maximums
at 463 and 415 nm, respectively. Magnetic susceptibility measurements indicate
the antiferromagnetic coupling between Mn ions in compound 1.
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