Citation: Cheriyedath Raj Sankar; Anna Becker; Abdeljalil Assoud; Holger Kleinke (2013). New Quaternary Chalcogenides, Tl18Pb2M7Q25 (M= Ti, Zr, and Hf;Q= S and Se): Crystal Structure, Electronic Structure, and Electrical Transport Properties. Inorganic Chemistry, 52, pp. 1895-1900.