Collect. Czech. Chem. Commun.
1990, 55, 2059-2065
https://doi.org/10.1135/cccc19902059
The structure of 1,2,4,4,6-pentaphenyl-1,4-dihydropyridine
Jaroslav Vojtěchovský, Jindřich Hašek, Jiří Ječný and Karel Huml
Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6
Abstract
Title compound is triclinic, Mr = 461.60; P1, a = 9.158(1), b = 16.062(3), c = 19.472(3) Å, α = 110.69(1)°, β = 89.70(1)°, γ = 103.17(1)°, V = 2 600(1) Å3, Z = 4, Do = 1.15(3), Dc = 1.179(1) Mg m-3, λ(CuKα) = 1.5418 Å, μ = 0.509 mm-1, F(000) = 976 K, R = 0.040 for 8 059 unique observed reflections. Both symmetrically independent molecules show a different geometry of the 1,4-dihydropyridine ring: either the boat conformation with apexes C(sp3), N and boat angles 14.7(3)° and 10.3(2)° respectively, or the planar conformation. The conformation has been compared with similar dihydropyridines obtained from Cambridge Structural Database.
