Crystal Structure of (NH4)2VO(SO4)2•H2O

Ammonium vanadate(IV) oxosulfate with the composition (NH 4) 2 VO(SO 4) 2 center dot H 2 O is synthesized and its crystal structure is investigated. It is found that the compound crystallizes in monoclinic crystal symmetry (space group P2 1, Z = 2) with lattice parameters: a = 4.65037(4)., b = 10.9870(1)., c = 9.5666(1)., ss = 98.6273(5)degrees, V = 483.260(8). 3, Z = 2. The crystal structure of the compound is composed of VO 5 H 2 O octahedra sharing vertices of bridging groups SO 4 and making infinite chains parallel to the a axis. In the vertex of the VO 5 H 2 O octahedron there is a short terminal vanadyl bond V 4+= O with a length of 1.564(7).. A water molecule is trans positioned to this group at a distance of 2.355(6).. The chains are linked with each other by (NH 4)+ ions.