S. Sony, M. Kuppayee, M. Ponnuswamy
Jan 1, 2003
Citations
0
Influential Citations
0
Citations
Journal
Molecular Crystals and Liquid Crystals
Abstract
24,26-Dioxo-3,6,14,17-tetraazapentacyclo((21.0.1 1,19 .1 3,6 .1 8,12 .1 14,17 )hexacosan-1(23),8(25),9,11,19,21-hexaene, C 22 H 24 N 4 O 2 , FW=376.45, monoclinic,P2 1 /n,a=11.144(2) Å, b=6.395(1) Å, c=13.562(3) Å, g =95.81(1), V=961.5(3) Å 3 , Z=2, D col =1.300 Mg/m 3 , w =0.685 mm m 1 , F(000)=400, u (CuK f )=1.5418 Å final R1 and wR2 are 0.0409 and 0.1547, respectively. The macro ligand consists of two phenyl rings and two five-membered rings forming the walls of the central cavity which has roughly a square cross-section. The orientation of the phenyl ring is antiperiplanar and approximately perpendicular to the diazacyclopentanone ring which adopts envelope conformation. The molecules are stabilized by C-H…O and C-H… ~ types of intermolecular interactions in addition to van der Waals forces.