title: K11Cd2Sb5 built of an unprecedented planar CdSb3 triangle.
abstract: The novel ternary Zintl phase K11Cd2Sb5 (1) with the unusual butterfly-shaped [Cd2Sb5](11-) (1a) cluster anion has been prepared by employing an enhanced stoichiometric proportion of K atoms that act as scissors. 1a is composed of two corner-shared unprecedented planar CdSb3 triangles that represent the first tricoordinated example of Cd unexpected for the octet rule.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China. xli@fjirsm.ac.cn.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.forename: Qian
authors.initials: Q
authors.lastname: Qin
authors.forename: Ruili
authors.initials: R
authors.lastname: Sang
authors.forename: Li
authors.initials: L
authors.lastname: Xu