Alkynyl-ruthenium based azo-organometallics: Thermal evolution of thin films microstructure

► We studied organometallic complexes in form of thin films. ► X-ray diffractometry revealed partly crystalline structure. ► Ellipsometry proved thickness decrease under heating. ► 2D X-ray diffractograms were recorded and new crystalline arrangement found. ► Orientation of crystallographic planes depended on compounds chemical composition.