Crystal structures of N,N'-(m-tolyl)thiourea and N,N'-(p-tolyl)thiourea. |
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| Authors: | Manuel Soriano-Garcia Gonzalo Trujillo Chavez Francisco Diaz Cedillo Ana Elizabeth Dominguez Perez Gerardo Aguirre Hernandez |
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| Institution: | Departamento de Bioestructura, Instituto de Química, UNAM, Circuito Exterior, C. U., Coyoacán, México DF 04510, México. |
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| Abstract: | C15H16N2S is monoclinic orthorhombic], P2(1)/c Pbcn]. Unit-cell dimensions at 293 K are a = 9.506(1), b = 7.629(1), c = 20.077(1)A, beta = 99.93(1) degrees, V= 1434.2(2)A(3), D(x) = 1.187 g/cm3, and Z = 4 a = 11.806(2), b = 13.954(2), c = 8.466(1)A, V = 1394.7(3)A(3), D(x) = 1.221 g/cm3, and Z = 8]. The R value is 0.049 0.045] for 1620 1229] observed reflections. The dihedral angle between the tolyl rings is 53.6(1) degrees 47.9(1)degrees]. The crystal structures are stabilized by N-H...S hydrogen bonds and van der Waals forces. |
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