The invention relates to volatile organic compound (VOC) sensing compounds. In particular, present invention relates to said sensing compounds comprising a metal phthalocycanine. Sensitivity of present metal phthalocyanine to VOC can be tuned by substitution groups. Sensing layers can be integrated on various transducers like a chemiresistor, a capacitor, a field effect transistor (FET), an optical-based sensor, or a mass-based sensor.
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