1′-Ethylsulfanyl-1,1′-bicyclohexyl-2-one
نویسندگان
چکیده
There are two independent molecules in the asymmetric unit of the title cyclo-hexa-none derivative, C(14)H(24)OS, in which both cyclo-hexane rings exhibit chair conformations. They are also equatorial to each other, which permits the ethanethiol substituent to be in a syn conformation with the α-H atom of the parent attached cyclo-hexa-none.
منابع مشابه
1,1′-Bicyclohexyl-1,1′-diyl 2,2′-bipyridine-3,3′-dicarboxylate
The title compound, C(24)H(26)N(2)O(4), lies about a crystallographic twofold rotation axis. The cyclo-hexane rings adopts a chair conformation. The two pyridine rings form a dihedral angle of 41.02 (4)°. In the crystal, mol-ecules are linked via C-H⋯O and C-H⋯N hydrogen bonds into a layer parallel to the bc plane.
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The title compound, C(26)H(28)O(4), lies about a crystallographic twofold rotation axis. The cyclo-hexane rings adopt a chair conformation. The two benzene rings form a dihedral angle of 40.82 (3)°. No significant intra- or inter-molecular inter-actions are observed in the crystal structure.
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In the crystal structure of the title compound, C(18)H(21)N(5)S(2), the thia-diazine six-membered ring and pyrrolidine five-membered ring display boat and envelope conformations, respectively. The crystal structure contains weak C-H⋯N and C-H⋯S hydrogen bonding.
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In the title compound, C(22)H(18)OS, the 2-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 29.18 (6)°. The dihedral angle between the 5-phenyl ring and the benzofuran plane is 20.42 (5)°. In the crystal structure, mol-ecules are linked by weak inter-molecular C-H⋯π inter-actions.
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It is proved that the Newton-Sabatier (NS) procedure is not a valid inversion method, in the following sense: 1) it is not possible to carry this procedure through for the phase shifts corresponding to a q ∈ L 1,1 such that ∞ 0 rq(r)dr = 0, where L 1,1 := {q : q = q, ∞ 0 r|q(r)|dr < ∞, 2) the ansatz (*) K(r, s) = ∞ l=0 c l ϕ l (r)u l (s), ∞ l=0 |c l | < ∞, similar to the one used in the NS proc...
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