title: A ramsayite-type oxide, Ca(2)Sn(2)Al(2)O(9).
abstract: The title compound, dicalcium nonaoxidodistannate(IV)dialuminate, is the second example which crystallizes in the isotypic structure of a pyroxene silicate, Na(2)Ti(2)Si(2)O(9) (ramsayite). (∞) (1)[Sn(2)O(8)] chains and pyroxene-type (∞) (1)[Al(2)O(6)] chains are formed along the b axis by sharing O atoms. The Ca atoms are situated in the resulting channels and exhibit a coordination number of 7.
authors.forename: Hisanori
authors.initials: H
authors.lastname: Yamane
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Abe
authors.forename: Rong
authors.initials: R
authors.lastname: Tu
authors.forename: Takashi
authors.initials: T
authors.lastname: Goto