title: Application of n-Bu4NHF2 as a fluorinating agent for the preparation of fluoroanions: synthesis and crystal structure of the anions [t-BuPO3AlF2]2(2-), [PhPO3AlF2]2(2-), and [(O-i-Pr)3Ti(mu-F)2(mu-O-i-Pr)Ti(O-i-Pr)3]-.
abstract: The first phosphonate anions of aluminum-containing fluorine and an anionic bridged fluoroalkoxy derivative of titanium have been realized using n-Bu4NHF2 as a fluorinating agent in organometallic synthesis. Reactions of [RPO3AlMe]4 [R = Ph (1), t-Bu] with n-Bu4NHF2 yield organic-soluble compounds of the type [n-Bu4N]2[RPO3AlF2]2 [R = Ph (2), t-Bu (3)], whereas the reaction of Ti(O-i-Pr)4 with n-Bu4NHF2 results in the formation of [n-Bu4N][O-i-Pr)3Ti(mu-F)2(mu-O-i-Pr)Ti(O-i-Pr)3] (4). These compounds have been obtained in high yields and have been adequately characterized through spectroscopic techniques and X-ray diffraction studies.
authors.affiliation: Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Chakraborty
authors.forename: S
authors.initials: S
authors.lastname: Horchler
authors.forename: H W
authors.initials: HW
authors.lastname: Roesky
authors.forename: M
authors.initials: M
authors.lastname: Noltemeyer
authors.forename: H G
authors.initials: HG
authors.lastname: Schmidt