TY - JOUR
T1 - Synthesis and structure of a novel layered phosphate NH4Mn2O(PO4)(HPO4) · H2O
AU - Lightfoot, P.
AU - Cheetham, A. K.
PY - 1989/1/1
Y1 - 1989/1/1
N2 - A novel layered phosphate, NH4Mn2O(PO4)(HPO4) · H2O, has been synthesized hydrothermally at 220°C under autogeneous water vapor pressure. The compound crystallizes in the orthorhombic space groupP212121, witha = 6.879(2), b = 7.741(2), andc = 16.244(3)Å. The structure was solved by Patterson and Fourier methods and refined to final agreement factorsR = 0.026, Rw = 0.028. Dominating the structure are zigzag chains of edge-sharing MnO6 octahedra running parallel toa, which are interconnected via bridging PO4 groups to form continuous sheets lying in theab plane. Adjacent sheets in thec direction are separated by NH+ 4 ions, and held together via H-bonding. The relationship of the structure to that of the more compact KMn2O(PO4)(HPO4) is discussed.
AB - A novel layered phosphate, NH4Mn2O(PO4)(HPO4) · H2O, has been synthesized hydrothermally at 220°C under autogeneous water vapor pressure. The compound crystallizes in the orthorhombic space groupP212121, witha = 6.879(2), b = 7.741(2), andc = 16.244(3)Å. The structure was solved by Patterson and Fourier methods and refined to final agreement factorsR = 0.026, Rw = 0.028. Dominating the structure are zigzag chains of edge-sharing MnO6 octahedra running parallel toa, which are interconnected via bridging PO4 groups to form continuous sheets lying in theab plane. Adjacent sheets in thec direction are separated by NH+ 4 ions, and held together via H-bonding. The relationship of the structure to that of the more compact KMn2O(PO4)(HPO4) is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0024304254&partnerID=8YFLogxK
U2 - 10.1016/0022-4596(89)90123-0
DO - 10.1016/0022-4596(89)90123-0
M3 - Article
AN - SCOPUS:0024304254
SN - 0022-4596
VL - 78
SP - 17
EP - 22
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
IS - 1
ER -