2Mn2(V3O10)(VO4), Sr3Mn(V2O7)2, and Sr2Mn(VO4)2(OH)]]>

摘要

Abstract Three new strontium manganese vanadates, Sr2Mn2(V3O10)(VO4) (I), Sr3Mn(V2O7)2 (II), and Sr2Mn(VO4)2(OH) (III), were prepared using a high temperature (580°C) hydrothermal method with various chloride salts as the mineralizer. Minor differences in the chloride stoichiometry led to significant differences in product. Compound I crystallizes in the monoclinic space group P21/c (a = 6.8773(12)?, b = 15.061(3)?, c = 11.609(2)?, β = 96.745(8)°), and consists of edge-shared octahedral manganese(II) dimers coordinated by trimeric [V3O10] and monomeric [VO4] groups. Compound II crystallizes in the tetragonal crystal system, P43212 (a = 6.9951(2)?, c = 25.4390(7)?), and is built from monomeric manganese(II) octahedra chelated by two pyrovanadate [V2O