Oxocentered Cu(ii) lead selenite honeycomb lattices hosting Cu(i)Cl2 groups obtained by chemical vapor transport reactions†
Abstract
Chemical vapor transport (CVT) reactions were used to prepare three modular mixed-valent Cu(I)–Cu(II) compounds, (Pb2Cu2+9O4)(SeO3)4(Cu+Cl2)Cl5 (1), (PbCu2+5O2)(SeO3)2(Cu+Cl2)Cl3 (2), and (PbxCu2+(6−x)O2)(SeO3)2(Cu+Cl2)K(1−x)Cl(4−x) (x = 0.20) (3). In their crystal structures chains of anion-centered (OCu2+4) and (OCu2+3Pb) tetrahedra form honeycomb-like double layers with cavities occupied by linear [Cu+Cl2]− groups.