Hydrothermal synthesis and structure of a zinc arsenate–oxalate, [NH3(CH2)3NH2(CH2)3NH3][Zn3(AsO4)(HAsO4)2(C2O4)], and a zinc arsenate, [{NH3(CH3)2NH2(CH3)3NH3}2][Zn6(AsO4)4(HAsO4)3]·H2O, with three-dimensional structures†
Abstract
Two new open-framework solids, a zinc arsenate–oxalate, [NH3(CH2)3NH2(CH2)3NH3][Zn3(AsO4)(HAsO4)2(C2O4)], I, and a zinc arsenate, [{NH3(CH2)3NH2(CH2)3NH3}2][Zn6(AsO4)4(HAsO4)3]·H2O, II, have been synthesized in the presence of dipropylenetriamine (DPTA) under mild hydrothermal reaction conditions. Both I and II possess a three-dimensional architecture with channels. The structure of the zinc arsenate–oxalate, I, consists of anionic