1 Hydroxylated Closo-Dodecaborates M 2 B 12 (OH) 12 (M = Li, Na, K and Cs); Structural Analysis, Thermal Properties and Solid-State Ionic Conductivity. Mathias Jørgensen 1,2 , Steffen R.H. Jensen 1,2 , Terry D. Humphries 1 , Matthew R. Rowles 3 , Maria V. Sofianos 4 , Craig E. Buckley 1 , Torben R. Jensen 2* , Mark Paskevicius 1* 1. Department of Physics and Astronomy, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. 2. Center for Materials Crystallography, Interdisciplinary Nanoscience Center (iNANO), Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus, Denmark. 3. John de Laeter Centre, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. 4. School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland. Ion conductivity; batteries; crystal structure; thermal properties; boranes; borates Page 1 of 32 ACS Paragon Plus Environment The Journal of Physical Chemistry 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60