title: Nanoscale chiral rod-like molecular triads assembled from achiral polyoxometalates.
abstract: The assembly of two achiral POMs of Lindqvist and Anderson through strong covalent linkages, using bifunctional TRIS with a rotatable C-N single bond, gives two nanoscale rod-like chiral molecular triads with C(2) symmetry, the chirality of which were confirmed by the single crystal X-ray diffraction analyses and solid CD spectroscopy measurements. The enantiopure crystals of these compounds have been obtained by spontaneous resolution upon crystallization in the absence of any chiral source. The present work opens a way to make chiral nanostructures from achiral polyoxoanions, which may have potential applications in asymmetric catalysis, NLO, and ferroelectric materials.
authors.affiliation: Department of Chemistry, Tsinghua University, Beijing 100084, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.forename: Jian
authors.initials: J
authors.lastname: Hao
authors.forename: Yongge
authors.initials: Y
authors.lastname: Wei
authors.forename: Fengping
authors.initials: F
authors.lastname: Xiao
authors.forename: Panchao
authors.initials: P
authors.lastname: Yin
authors.forename: Longsheng
authors.initials: L
authors.lastname: Wang
mesh_terms: D008958:Models, Molecular; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D013237:Stereoisomerism; D014325:Tromethamine / Q000737:chemistry; D017973:Tungsten Compounds / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D008982:Molybdenum; D014325:Tromethamine; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates; C044659:molybdate