Crystal structure of an ordered [WOF5]¯ salt: (1,10-phenH) [WOF5] (1,10-phen = 1, 10-phenanthroline
Crystals of 1,10-phenanthrolinium pentafluoridooxidotungstate(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 trans influence of the oxido ligand.
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Tungsten , Fluoride , Oxide , Crystal structure , O/F ordered anion
Turnbull, D., & Gerken, M. (2020). Crystal structure of an ordered [WOF5] ¯ salt: (1,10-phen-H)[WOF5] (1,10-phen = 1,10-phenanthroline. Acta Crystallographica Section E, 76(8), 1345-1348. https://doi.org/10.1107/S2056989020009767