PT Journal AU Wissel, K Heldt, J Groszewicz, PB Dasgupta, S Breitzke, H Donzelli, M Waidha, AI Fortes, AD Rohrer, J Slater, PR Buntkowsky, G Clemens, O TI Topochemical Fluorination of La$_2$NiO$_4+d$: Unprecedented Ordering of Oxide and Fluoride Ions in La$_2$NiO$_3$F$_2$ SO Inorganic chemistry PY 2018 BP 6549 EP 6560 VL 57 IS 11 DI 10.1021/acs.inorgchem.8b00661 LA english ER