title: Formation of a "less stable" polyanion directed and protected by electrophilic internal surface functionalities of a capsule in growth: [{Mo6O19}2- subset {Mo(VI)72Fe(III)30O252(ac)20(H2O)92}]4-.
abstract: The spherical capsule skeleton of the host-guest system [{Mo6O19}2- subset {Mo(VI)72Fe(III)30O252(CH3COO)20(H2O)92}]4- 1a--built up by 12 {(Mo(VI))Mo(VI)5} type pentagonal units linked by 30 Fe(III) centers which span the unique icosahedral Archimedean solid, the icosidodecahedron--can now be constructed deliberately and with a simpler composition than before from an acidified aqueous molybdate solution containing the mentioned (virtual) pentagonal units; the encapsulated hexamolybdate--normally not formed in water--is built up in an unprecedented way concomitant with capsule growth, while being directed by the corresponding internal electrophilic surface functionalities.
authors.affiliation: Fakultät für Chemie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany. a.mueller@uni-bielefeld.de
authors.forename: Achim
authors.initials: A
authors.lastname: Müller
authors.forename: Ana Maria
authors.initials: AM
authors.lastname: Todea
authors.forename: Hartmut
authors.initials: H
authors.lastname: Bögge
authors.forename: Joris
authors.initials: J
authors.lastname: van Slageren
authors.forename: Martin
authors.initials: M
authors.lastname: Dressel
authors.forename: Anja
authors.initials: A
authors.lastname: Stammler
authors.forename: Mariana
authors.initials: M
authors.lastname: Rusu