title: 1-D Selenidoindates {[In2Se5]}∞ directed by chiral metal complex cations of 1,10-phenanthroline.
abstract: Two 1-D selenidoindates {[M(phen)(3)]In(2)Se(5)·H(2)O}(n) (M = Ni, Fe) were synthesized by a solvothermal method. The 1-D {[In(2)Se(5)](2-)}(n) anion is a new type of single 1-D structure constituted by an alternately fused four-membered In(2)Se(2) ring and five-membered In(2)Se(3) ring. The chalcogenoindates were separated as mechanical racemic mixtures of single enantiomer crystals, in which the R-helix of 1-D InSe anion is directed by the related clockwise (Δ) cations of [M(phen)(3)](2+) or the L-helix of 1-D anion is directed by the related anticlockwise (Λ) cation. The π···π, C···Se, and C-H···Se oriented interactions of metal complex cations with selenidoindate anions play an important role in the formation of the chiral crystals. The embedded [M(phen)(3)](2+) cations improve the optical absorption of the 1-D semiconductor materials.
authors: Department of Chemistry and Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, Suzhou 215123, People's Republic of China.
authors: Xu
authors: X
authors: Zhang
authors: Zhi-Xin
authors: ZX
authors: Lei
authors: Wen
authors: W
authors: Luo
authors: Wen-Qin
authors: WQ
authors: Mu
authors: Xiang
authors: X
authors: Zhang
authors: Qin-Yu
authors: QY
authors: Zhu
authors: Jie
authors: J
authors: Dai