Biomedical subjects

M S Whittingham

Publications and source records attributed to M S Whittingham.

2 recordsLinked to original sources

PubMed2001

Li(2)Sn(OH)(6).

Hydrothermally prepared dilithium tin hexahydroxide crystallizes in the monoclinic system (space group P2(1)/n), with the Sn atom at a site with -1 symmetry and all other atoms in general positions. The Sn coordination polyhedron is made up of six hydroxide groups. The Li atom is tetrahedrally coordinated by oxygen, with the tetrahedra sharing two corners and one edge with the adjacent Sn octahedra. Hydrogen bonds between the OH groups provide additional bonds in the framework.

Journal Article↗

PubMed2000

Sodium trivanadium(III) bis(sulfate) hexahydroxide.

The title compound, NaV(3)(SO(4))(2)(OH)(6), was synthesized and found to crystallize in the trigonal space group R-3m with the Na atom at a site with 3;m symmetry, the V atom at a site with 2/m symmetry, and the S and a terminal O atom at sites with 3m symmetry; the remaining two O atoms and the H atom are at sites with m symmetry. Octahedrally coordinated vanadium and tetrahedral sulfate ions share corners to form layers that are held together by hydrogen bonds and by sodium ions, which are located between the layers.

Journal Article↗