“…Crystals of small size have been grown as well in open tube systems, either by oxidation of ZnI 2 [156], ZnS, ZnSe [157], ZnBr 2 [158], and Zn [159][160][161] or by hydrolysis of ZnF 2 [162], ZnCl 2 [163,164], or ZnI 2 [165]. The oxidation or hydrolysis character of the reaction can depend on the temperature range used for a same source.…”