The 1D and 0D weakly hydrogen-bonded adducts 18-crown-6/4-phenylthiosemicarbazide (1/2) and cis–anti–cis-dicyclohexyl-18-crown-6/N,N0-diphenylthiourea (1/2)

Two title compounds, 18-crown-6/4-phenylthiosemicarbazide, 1, and cis–anti–cis-dicyclohexyl-18-crown-6/N,N0-diphenylthiourea, 2, both of 1:2 ratio, exhibit one-dimensional (chain) and zero-dimensional (molecular complex) structures correspondingly. The crystals of 1 are monoclinic, space group P21/c, aZ13.142(2), bZ20.367(5), cZ12.090(3) A ° , bZ92.32(1)8, VZ3233.4(1) A ° 3, ZZ4. The crystals of 2 are triclinic, space group P-1, aZ9.958(2), bZ13.223(3), cZ17.293(4) A ° , aZ87.96(3), bZ86.93(3), gZ86.55(3)8, VZ2268.5(8) A ° 3, ZZ 2. The adducts are sustained by N–H/O hydrogen bonds. Weak C(aryl)–H/S interactions are responsible for the corrugated chain formation in 1. q 2004 Elsevier B.V. All rights reserved.