Selective Ammonia Sensing through Reversible Vapochromism and Luminescence ON-OFF Switching of a Chalcone-Based Co(II) Complex

Key Points

• To investigate the ammonia sensing capabilities of a chalcone-based cobalt(II) complex through vapochromism and luminescence changes.
• Synthesis of a chalcone-based cobalt(II) complex
• Exposure of the complex to ammonia vapor
• Observation of vapochromic and luminescent properties during gas exposure
• Distinct color change observed upon ammonia exposure indicating vapochromism
• Reversible luminescence ON-OFF switching with repeated exposure
• Demonstrated potential for real-time ammonia detection applications