Synthesis and structures of two new 12-member ring crown-shaped oxovanadium borophosphates
Abstract
Two new oxovanadium borophosphates have been hydrothermally synthesized; they are structural analogues and are both constructed by [(VO)12{O3POB(O)2OPO3}6]18– 12-member ring clusters with NH4+ and K+ cations encapsulated in the rings, respectively; an extended network of hydrogen bonds between anions, cations and crystal water molecules link the structures in three dimensions.