title: Extended structure design with simple molybdenum oxide building blocks and urea as a directing agent.
abstract: We report here a simple one-pot directed synthesis of an oxomolybdate urea composite in which elementary molybdenum oxide building blocks are linked together with the aid of urea. This type of directed material design resulted in large rod-like crystals of an inorganic-organic hybrid extended structure of {MoO 3(NH 2-CO-NH 2)} infinity consisting of right- and left-handed helical units. In the crystal structure urea acts both as a glue that links the inorganic molybdenum units into a helix and as a supramolecular linker for the stabilization of the crystal structure as a whole. This type of molecular topology resulted in an unexpectedly high thermal stability.
authors.affiliation: Van 't Hoff Laboratory for Physical and Colloid Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands. s.j.veen@uu.nl
authors.forename: Sandra J
authors.initials: SJ
authors.lastname: Veen
authors.forename: Soumyajit
authors.initials: S
authors.lastname: Roy
authors.forename: Yaroslav
authors.initials: Y
authors.lastname: Filinchuk
authors.forename: Dmitry
authors.initials: D
authors.lastname: Chernyshov
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Petukhov
authors.forename: Marjan
authors.initials: M
authors.lastname: Versluijs-Helder
authors.forename: Alfred
authors.initials: A
authors.lastname: Broersma
authors.forename: Fouad
authors.initials: F
authors.lastname: Soulimani
authors.forename: Tom
authors.initials: T
authors.lastname: Visser
authors.forename: Willem K
authors.initials: WK
authors.lastname: Kegel