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The synthesis of syn-photodimer from 1,4-dihydropyridine without 4-aryl was studied, and its single crystal was obtained (C22H30N2O8, Mr = 450.48). It crystallizes in monoclinic, space group P21/c with a = 11.937(2), b = 20.913(4), c = 9.763(2) , β = 108.46(3)°, V = 2311.9(8) 3, Z = 4, Dc = 1.294 g/cm3, F(000) = 960, μ = 0.099 mm-1, R = 0.0640 and wR = 0.1464 for 4077 unique reflections with 1598 observed ones (I > 2σ(I)). It is shown that the whole molecular structure of the title compound is a twist-boat conformation, and the two double bonds have a trend of potential intramolecular reaction under high-energy irradiation.
The synthesis of syn-photodimer from 1,4-dihydropyridine without 4-aryl was studied, and its single crystal was obtained (C22H30N2O8, Mr = 450.48). It crystallizes in monoclinic space group P21 / c with a = 11.937 , b = 20.913 (4), c = 9.763 (2) β, β = 108.46 (3) °, V = 2311.9 (8) 3, Z = 4 and Dc = 1.294 g / cm3. , μ = 0.099 mm-1, R = 0.0640 and wR = 0.1464 for 4077 unique reflections with 1598 observed ones (I> 2σ (I)). It shows shown that the whole molecular structure of the title compound is a twist-boat conformation , and the two double bonds have a trend of potential intramolecular reaction under high-energy irradiation.