found: Dictionary.com, July 19, 2012(stannic: Chemistry. of or containing tin, especially in the tetravalent state; stannous: Chemistry. containing tin, especially in the bivalent state)
found: Oxford dictionary of chemistry, via Answers website, July 19, 2012(stannic compounds: Compounds of tin in its higher (+4) oxidation state; e.g. stannic chloride is tin(IV) chloride; stannous compounds: Compounds of tin in its lower (+2) oxidation state; e.g. stannous chloride is tin(II) chloride)
found: Baumstark, A.L. The reaction of tetramethyl-1, 2-dioxetane with trivalent phosphorus compounds ; Mechanism of the transition metal ion catalyzed decomposition of tetramethyl-1, 2-dioxetane ; The reaction of tetramethyl-1, 2-dioxetane in the presence of strong Lewis acids, BF₃ and SnCl₄ ; The reaction of tetramethyl-1, 2-dioxetane with stannous compounds, 1974.