An extended linear chain (ELC) material composed of repeating units of Pt(II)(CN)2(CNCH(CH3)2)2 has been synthesized and characterized. X-ray crystallography reveals a solid-state ELC structure with significant Pt-Pt interactions. The native color of these crystals is yellow with an orange-yellow emission (λex = 365 nm) in the solid-state. Exposure of the crystals to benzene vapor slowly blue shifts the absorption band leading to colorless crystals with a blue emission. X-ray crystallography of the benzene containing ELC material indicates a significant lengthening of the Pt-Pt interaction and a 1:1 Pt(II)(CN)2(CNCH(CH3)2)2:benzene ratio. Data will be presented that characterizes the kinetics of the observed reversible electronic changes initiated by the presence of benzene and other volatile aromatic organic compounds. In addition, the potential application of this material as a benzene sensor will be discussed.