Synthesis, characterization, and thermal properties of a 2-isopropyl-aminopyridine adduct of cobalt(II) chloride and its potential as a CVD precursor for cobalt-based films.

[Display omitted] • The detailed study on synthesis, characterization, and thermal properties of an alkyl-aminopyridine adduct of cobalt(II) chloride. • By adding alkyl-aminopyridine to cobalt(II) chloride, the obtained compound exhibits high stability, sufficient volatility, and suitable thermal stability, which is benefit for industrial application. • A promising CVD precursor for preparation of cobalt-based films. In this study, a 2-isopropyl-aminopyridine adduct of cobalt(II) chloride [Co(2- i PrNH-C 5 H 4 N) 2 Cl 2 ] was synthesized and used as a precursor for preparing cobalt-based films through chemical vapor deposition (CVD). This compound was synthesized through a simple coordination reaction and characterized through 1H NMR, elemental analysis, and single-crystal diffraction. The thermal properties (including volatility, vapor pressure, and thermal stability) of the compound were investigated through thermogravimetric analysis (TGA) to determine its feasibility for use in CVD. Moreover, a film deposition experiment was conducted in a low-pressure CVD reactor system, and a Co 3 O 4 film was obtained. This result verified the reported compound's applicability as a CVD precursor for fabricating cobalt-based films. [ABSTRACT FROM AUTHOR]