130797-77-2Relevant academic research and scientific papers
Design of organic structures in the solid state: Molecular tapes based on the network of hydrogen bonds present in the cyanuric acid-melamine complex
Zerkowski, Jonathan A.,MacDonald, John C.,Seto, Christopher T.,Wierda, Derk A.,Whitesides, George M.
, p. 2382 - 2391 (2007/10/02)
This paper describes the single-crystal X-ray structures of 1:1 complexes between seven N,N′-bis(4-X-phenyl)melamines (X = H, F, Cl, Br, I, CH3, and CF3) and 5,5-diethylbarbituric acid. These complexes crystallize as infinite tapes having components joined by triads of hydrogen bonds; the tapes pack with their long axes parallel. The crystalline architecture of these complexes - parallel tapes - serves as a structurally constrained framework with which to study physical-organic relationships between the structures of the crystals and the molecules of which they are composed. The complex with X = Br exists in polymorphic forms. One of the polymorphs is isomorphous to the X = Cl complex; the other is related to the X = I complex.
