Synthesis and physicochemical properties of melam

Synthesis and Structure of Melamium Bromide C6N11H10Br and Melamium Iodide C6N11H10I

“…This is most likely due to the intermediate role melam takes up in the condensation pathway, resulting in difficulties to obtain the compound phase pure and thus making it unattractive for potential applications . Certain synthesis routes starting from melamine or its chloro‐substituted derivatives in the presence of Lewis acidic salts have been proposed,, however, a route to obtain larger quantities of phase pure melam has first been published in 2013 . In this, melam could be obtained from dicyandiamide in autoclaves under ammonia pressure, thus preventing further condensation towards melem by impeding ammonia eliminating reactions through an already high ammonia partial pressure.…”

“…There have been some reports on the investigation of optical and spectroscopic properties of melam, , as well as theoretical calculation of such properties and the according spectra, a complete crystal structure determination, however, could not be performed until 2007 …”