title: Ti7-containing, tetrahedral 36-tungsto-4-arsenate(III) [Ti6(TiO6)(AsW9O33)4]20-.
abstract: We have prepared the Ti7-containing, tetrahedral 36-tungsto-4-arsenate(III) [Ti6(TiO6)(AsW9O33)4](20-) (1) by a simple, one pot procedure. Polyanion 1 contains a novel Ti7-core, comprising a central TiO6 octahedron surrounded by six TiO5 square-pyramids, and capped by four {As(III)W9} trilacunary fragments. The title polyanion is solution-stable, as shown by (183)W NMR and mass spectrometry, and exhibits interesting biological properties.
authors.affiliation: Jacobs University, School of Engineering and Science, P.O. Box 750 561, 28725 Bremen, Germany. u.kortz@jacobs-university.de.
authors.forename: Kai-Yao
authors.initials: KY
authors.lastname: Wang
authors.forename: Bassem S
authors.initials: BS
authors.lastname: Bassil
authors.forename: Zheng-Guo
authors.initials: ZG
authors.lastname: Lin
authors.forename: Ali
authors.initials: A
authors.lastname: Haider
authors.forename: Jie
authors.initials: J
authors.lastname: Cao
authors.forename: Holger
authors.initials: H
authors.lastname: Stephan
authors.forename: Katrin
authors.initials: K
authors.lastname: Viehweger
authors.forename: Ulrich
authors.initials: U
authors.lastname: Kortz