Crystal structure of an ordered [WOF₅]^- salt: (1,10-phen-H)[WOF₅] (1,10-phen = 1,10-phenanthroline).

ABSTRACT: Crystals of 1,10-phenanthrolinium penta-fluorido-oxidotungstate(VI), (1,10-phen-H)[WOF₅] (1,10-phen = 1,10-phenanthroline, C₁₂H₈N₂), were obtained upon hydrolysis of WF₆(1,10-phen) in CH₃CN at 193 K. The (1,10-phen-H)[WOF₅] salt contains a rare example of a [WOF₅]^- anion in which the oxygen and fluorine atoms are ordered. This ordering was verified by bond-valence determinations and structural comparisons with [Xe₂F₁₁][WOF₅] and Lewis acid-base adducts of WOF₄ with main-group donor ligands. The crystal packing is controlled by N-H⋯F hydrogen bonding that is directed exclusively to the axial F atom as a result of its increased basicity caused by the

SUBMITTER: Turnbull D 

PROVIDER: S-EPMC7405552 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature