title: Two-dimensional hybrid germanium zeotype formed by selective coordination of the trans-1,2-diaminocyclohexane isomer to the ge atom: heterogeneous acid-base bifunctional catalyst.
abstract: [C 6H 10(NH 2) 2Ge 3O 6] ICMM9 is a two-dimensional germanate in which the metallic atoms are covalently bonded to chelating diamines. Its layered structure having some similitude with that of the pyroxene mineral, presents a totally new topology with two 4-c nodes. The solvothermal synthesis reaction allows the separation in situ of the two 1,2-diaminocyclohexane isomers by selective coordination of the trans isomer to octahedral Ge atoms of the ICMM9 framework. This material behaves as an active and selective heterogeneous acid-base bifunctional catalyst.
authors.affiliation: Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, Spain.
authors.forename: Felipe
authors.initials: F
authors.lastname: Gándara
authors.forename: Manuela E
authors.initials: ME
authors.lastname: Medina
authors.forename: Natalia
authors.initials: N
authors.lastname: Snejko
authors.forename: Berta
authors.initials: B
authors.lastname: Gómez-Lor
authors.forename: Marta
authors.initials: M
authors.lastname: Iglesias
authors.forename: Enrique
authors.initials: E
authors.lastname: Gutiérrez-Puebla
authors.forename: M Angeles
authors.initials: MA
authors.lastname: Monge