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- Lennartson, Anders, 1980, et al.
(author)
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(3-acetylpyridine-kappa N)chlorobis(triphenylphosphine-kappa P) copper(I): a suitable candidate for absolute asymmetric synthesis?
- 2006
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In: Acta Crystallographica Section E-Structure Reports Online. ; 62
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Journal article (peer-reviewed)abstract
- It was found that 3-acetylpyridine is capable of displacing triphenylphosphine from [CuCl(PPh3)(3)], forming the title compound, [CuCl(C7H7NO)(C18H15P)(2)]. The two triphenylphosphine ligands possess the same sense of chirality, and the molecules are therefore conformationally chiral. The compound was found to crystallize as a racemate (centrosymmetric space group) under the crystallization conditions employed. The molecular structure shows that the carbonyl C atom is blocked at one side by a triphenylphosphine ligand, while the other face is open for nucleophilic attack. Obtaining chiral crystals of the title compound is thus a future objective. In the crystal structure, C-(HO)-O-...(=C)-bonded dimers are formed, which are further stabilized by pi-pi interactions. The dimers form infinite chains through weak C-H-...pi interactions.
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| 2. |
- Lennartson, Anders, 1980, et al.
(author)
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catena-Poly[[(3-acetylpyridine)copper(I)]mu(3)-chloro]
- 2005
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In: Acta Crystallographica Section E-Structure Reports Online. ; 61
-
Journal article (peer-reviewed)abstract
- In the search for ketone complexes suitable for absolute asymmetric synthesis, that is, complexes crystallizing in Sohncke space groups, we have studied complexes between copper( I) halides and acetylpyridines. The structure of polymeric [CuCl(3-acpy)](n) (3-acpy is 3-acetylpyridine, C7H7NO), a compound which was found to form achiral chains crystallizing in a centrosymmetric space group, is reported here. The complex forms ladder-type chains, in which the Cu-I atom is coordinated by one N atom and three Cl atoms in a tetrahedral geometry. In the crystal structure, the chains are interconnected through C - H....Cl and C - H.....O intermolecular contacts.
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