Video Abstracts Incorporation of Transition Metal Ion Guests (Co2+, Ni2+, Cu2+, Zn2+) into the Ti2-containing 18-Tungsto-2-Arsenate(III) Monolacunary Host Wang, K.-Y.; Bassil, B. S.; Xing, X.; Keita, B.; Bindra, J. K.; Diefenbach, K.; Dalal, N. S.; Kortz, U. Eur. J. Inorg. Chem. 2016, 5519–5529.