Synthesis, structure and thermochemical behavior of bis-(1,1,1,5,5,5-hexafluoro-2,4-pentanedionato)-(1,4,7,10,13,16-hexaoxa-cyclooctadecane)-strontium in comparison with its structural and thermochemical analogous

The trans-[M(18-crown-6)(C5HO2F6)2] (M = Ca, Sr, Ba, Pb) complexes have been synthesized and identified. The crystal structure of the Sr complex has been determined by X-ray diffraction. The basic structural unit is the mononuclear complex trans-[Sr(18-crown-6)(C5HO2F6)2]. The thermal properties of the complexes have been correlated to their structure. The melting and decomposition ranges of the Ca, Sr and Ba complexes and their sublimation temperatures at ∼10−2 mm Hg have been determined. Experimental evidence is presented that the complexes are similar in volatility.

Graphical abstractThis article was devoted to synthesis, structure determination and thermochemical properties investigation of complex compounds (18-crown-6 contained bis-hexafluoroacetylacetonates) of strontium, lead and other IIA group metals with same structure and volatility.Figure optionsDownload full-size imageDownload as PowerPoint slide