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- W2062313144 abstract "In methanol, the metal salts CdCl2·H2O and HgCl2 react instantaneously with the deprotonated ligand, L-, producing molecular dimetallic ink-blue complexes of general formula M2Cl2L2, M = Cd(II), (1) and Hg(II), (2) (HL = 2-[2-(pyridylamino)phenylazo]pyridine). Crystal structures of these two complexes are reported. The coordination sphere around each Cd(II) ion in 1 is a distorted square pyramidal. The metal ion (Cd1) sits above the basal plane of three nitrogen atoms, N(1), N(3), and N(4). The second cadmium ion (Cd2) in this compound lies below the plane of three nitrogen atoms, N(6), N(8), and N(9). The apical positions are occupied by two Cl atoms. Secondary intramolecular interactions between the metal ions and the anionic secondary amine nitrogen atoms (N(4) and N(9)) are noted. The geometry of each Hg(II) ion in the mercury complex, Hg2Cl2L2·0.5H2O, is also distorted square based pyramid with the metal ions lying out of planes of the three nitrogen atoms of the chelating ligands. Secondary Hg(1)···N(1A) (deprotonated amine) interactions are noted. The separation between the two Hg(II) ions in this complex is within the sum of their van der Waals radii. Solution properties of these blue complexes are reported. The origin of the intense blue color in these complexes is the intraligand transitions that occur near 615 nm. 1H NMR of Hg2Cl2L2·0.5H2O indicates that it undergoes exchange in solution with the coordinated ligands." @default.
- W2062313144 created "2016-06-24" @default.
- W2062313144 creator A5033568503 @default.
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- W2062313144 date "2003-11-15" @default.
- W2062313144 modified "2023-09-23" @default.
- W2062313144 title "Blue Dimetallic Complexes of Two Heavy Metal Ions Cd<sup>II</sup> and Hg<sup>II</sup> with an Extended Nitrogen Donor Ligand. Preparation, Spectral Characterization, and Crystallographic Studies" @default.
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- W2062313144 doi "https://doi.org/10.1021/ic034948g" @default.
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