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- W3006543982 endingPage "846" @default.
- W3006543982 startingPage "846" @default.
- W3006543982 abstract "Reactions of NiCl2·6H2O and pyridin-2-one (C5H5NO = Hhp) afforded novel molecular complexes, i.e., mononuclear [NiCl2(Hhp)4] (1), dinuclear [NiCl2(Hhp)(H2O)2]2.2Hhp (3) and [Ni2Cl4(Hhp)5]·2MeCN (4), and an ionic complex [Ni(Hhp)6]Cl2 (2). Single-crystal X-ray analyses revealed two modes of Hhp ligation in these complexes: a monodentate coordination of carbonyl oxygen in all of them and an additional µ2-oxygen bridging coordination in the dinuclear complex 4. Three bridging molecules of Hhp span two nickel(II) ions in 4 with a 2.9802 (5) Å separation of the metal ions. Complex 3 is a chlorido-bridged nickel dimer with a planar Ni2(µ-Cl)2 framework. Hydrogen bonds and parallel stacking arrangements of the Hhp molecules govern the connectivity patterns in the crystals, resulting in 1D structures in 1 and 5 or 2D in 3. A single manganese compound [MnCl2(Hhp)4] (5), isostructural to 1, was isolated under the similar conditions. This is in contrast to four nickel(II) chloride complexes with Hhp. Thermal analyses proved the stability of complexes 1 and 3 in argon up to 145 °C and 100 °C, respectively. The decomposition of 1 and 3 yielded nickel in argon and nickel(II) oxide in air at 800 °C." @default.
- W3006543982 created "2020-02-24" @default.
- W3006543982 creator A5028882761 @default.
- W3006543982 date "2020-02-14" @default.
- W3006543982 modified "2023-09-30" @default.
- W3006543982 title "Structural Diversity of Nickel and Manganese Chloride Complexes with Pyridin-2-One" @default.
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- W3006543982 doi "https://doi.org/10.3390/molecules25040846" @default.
- W3006543982 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7070377" @default.
- W3006543982 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32075095" @default.