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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Junk, Peter C.
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Publications (5/5 displayed)
- 2018New, environmentally friendly, rare earth carboxylate corrosion inhibitors for mild steelcitations
- 2017Synthesis and Structures of Rare Earth 3-(4′-Methylbenzoyl)-propanoate Complexes-New Corrosion Inhibitorscitations
- 2016Structural diversity of lanthanoid salicylate hydratescitations
- 2015Conditions Favoring the Formation of Monomeric PtIII Derivatives in the Electrochemical Oxidation of trans-[PtII{(p-BrC6F4)NCH2CH2NEt2}Cl(py)]citations
- 20002,6-Diphenylphenolates of calcium, strontium and barium exhibiting π-phenyl encapsulation of the partially naked cationscitations
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article
2,6-Diphenylphenolates of calcium, strontium and barium exhibiting π-phenyl encapsulation of the partially naked cations
Abstract
<p>Solvent free 2,6-diphenylphenolates of calcium, strontium and barium have been prepared by direct reaction of the bulk metals with 2,6-diphenylphenol (HOdpp) at elevated temperatures in evacuated sealed tubes. Single-crystal X-ray diffraction studies of crystalline [Ca<sub>2</sub>(Odpp)<sub>2</sub>(μOdpp)<sub>2</sub>]·(PhMe) (1), [Sr<sub>2</sub>(Odpp)(μOdpp)<sub>3</sub>]·(PhMe) (2) or [Ba<sub>2</sub>(Odpp)(μOdpp)<sub>3</sub>] (3), obtained by toluene extraction of the reaction mixtures, revealed different binuclear structural frameworks. In 1, both Ca atoms have one terminal and two bridging aryloxide ligands in a pyramidal array with the coordination vacancies occupied by π-bonded pendant phenyl groups (an η<sup>3</sup>- and an η<sup>1</sup>-Ph on one Ca and an η<sup>6</sup>-Ph on the other). By contrast, 2 has unsymmetrical metal-oxygen coordination with one terminal and three bridging aryloxides attached to one metal and solely three bridging aryloxides bound to the other. There are additional intramolecular π-Ph-Sr interactions with three η<sup>1</sup>-Ph groups on the four coordinate Sr and three η<sup>2</sup>-Ph groups on the three coordinate Sr. In 3, the structure exhibits a similar metal-oxygen framework to 2, but there are an increased number of π-phenyl-M interactions (one η<sup>2</sup>-Ph and two η<sup>1</sup>-Ph on the four coordinate Ba and one η<sup>6</sup>-Ph, one η<sup>3</sup>-Ph and one η<sup>2</sup>-Ph on the three coordinate Ba).</p>