ABSTRACT
We report herein a five-component self-sorted system comprising molecular clips that form heterodimers 1·4 and 8·11, and homodimer 14·14 in C(6)D(5)CD(3)/CDCl(3). The three component self-sorting mixture comprising 1·1, 8·8, and 14·14 undergoes triggered reassembly self-sorting upon addition of 4·4 and 11·11.
Subject(s)
Calixarenes/chemistry , Urea/chemistry , Crystallography, X-Ray , Dimerization , Hydrogen Bonding , Magnetic Resonance Spectroscopy , Molecular Conformation , StereoisomerismABSTRACT
A noncovalent macrocycle-within-noncovalent macrocycle assembly is formed from twelve molecules of (+/-)-1 and twelve molecules of MeOH in the solid state. The H-bonded (MeOH)(12) cyclododecamer assumes a crown-shaped geometry that has not previously been predicted theoretically or found experimentally.
Subject(s)
Macrocyclic Compounds/chemistry , Methanol/chemistry , Nanotubes/chemistry , Cyclization , Dimerization , Hydrogen Bonding , Macrocyclic Compounds/chemical synthesis , Methanol/analogs & derivatives , Models, Molecular , Molecular Conformation , StereoisomerismABSTRACT
The title mol-ecule, C(28)H(28)Cl(4)N(6)O(6), is built up from four fused rings, viz. two nearly planar imidazole five-membered rings which adopt envelope conformations with the C=O groups at the flap position, and two triazine six-membered rings which adopt chair conformations. Each six-membered ring has a 2,4-dichloro-benzyl substituent attached to an N atom. In the mol-ecule, the two ethyl groups are each disordered between two orientations in 0.784â (16)/0.216â (16) and 0.631â (10)/0.37â (10) ratios. Weak inter-molecular C-Hâ¯O hydrogen bonds help to stabilize the crystal packing.
