title: Joining the crown family; the tetrameric, O-bridged macrocycle [{P(micro-N(t)Bu)}2(micro-O)]4.
abstract: The in situ reaction of the dianion [O_P(micro-N(t)Bu)]2(2-) with the dimer [ClP(micro-N(t)Bu)]2 gives the O_bridged macrocycle [{P(micro-N(t)Bu)}2(micro-O)]4 (1), being the largest crown-like phosph(III)azane of its type to be reported and having a structure that is directly related to the ubiquitous 12-crown-4.
authors.affiliation: Chemistry Department, Cambridge University, Lensfield Road, Cambridge, UK CB2 1EW.
authors.forename: Silvia
authors.initials: S
authors.lastname: Gonzalez Calera
authors.forename: Dana J
authors.initials: DJ
authors.lastname: Eisler
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Goodman
authors.forename: Mary
authors.initials: M
authors.lastname: McPartlin
authors.forename: Sanjay
authors.initials: S
authors.lastname: Singh
authors.forename: Dominic S
authors.initials: DS
authors.lastname: Wright