Tetramethylcyclotetraarsoxane Bridged Copper(I) Halides with Porous Sheet and Framework Structures?2[CuX{cyclo-(MeAsO)4}] (X=Cl, Br, I) and?3[Cu3X3{cyclo-(MeAsO)4}2] (X=Cl, Br)
摘要:
AbstractOpen sheet and framework structures [CuX{cyclo‐(MeAsO)4}] (X=Cl, Br, I) 1–3 and [Cu3X3{cyclo‐(MeAsO)4}2] (X=Cl, Br) 4 and 5 may be prepared by self‐assembly from CuX and methylcycloarsoxane (MeAsO)n in acetonitrile solution. 1–3 exhibit 44 nets in which (CuX)2 units are connected through μ‐1 KAs1 : 2 KAs3 coordinated (MeAsO)4 ligands into large 28‐membered rings. In contrast, adjacent [CuX] chains in 4 and 5 are connected into sheets by μ4‐K4As coordinated (MeAsO)4 building blocks, with μ‐1 KAs1 : 2 KAs3 bridging of these layers by independent (MeAsO)4 cyclotetramers leading to the generation of a porous framework structure. 1–5 were characterised by X‐ray structural analysis.