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Supramolecular architecture of catechol and its 2:1 complex with dimethylsulfoxide
Authors:T M Polyanskaya  K A Khaldoyanidi  A I Smolentsev
Institution:(1) College of Materials and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, People’s Republic of China;(2) College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, 830046, People’s Republic of China;
Abstract:The crystal structures of catechol (o-dihydroxybenzene) and its 2:1 complex with dimethylsulfoxide are determined at T = 150 K. Crystal data: C14H18O5S, M = 298.37, triclinic, space group P \(\bar 1\), unit cell parameters: a = 7.7285(13) Å, b = 9.9924(17) Å, c = 10.3188(18) Å, α = 89.963(4)°, β = 89.968(4)°, γ = 69.076(5)°, V = 744.3(2)Å3, Z = 2, D x = 1.331 g/cm3, R1 = 0.048; C6H6O2, M = 110.11, monoclinic, space group P21/n, a = 9.8206(6)Å, b = 5.5903(3)Å, c = 10.4439(6)Å, β = 114.952(2)°; V = 519.85(5) Å3, Z = 4, D x = 1.407 g/cm3, R1 = 0.0289. In the 2:1 complex the molecules are joined in a supramolecular ensemble by D-H...A hydrogen bonds (D = O, C; A = O, π); in catechol they are bonded only by O-H...O. The state diagram of the catechol-dimethylsulfoxide system is examined by DTA.
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