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Biomedical subjects

Mats Johnsson

Publications and source records attributed to Mats Johnsson.

8 recordsLinked to original sources
PubMed2006

Sr2Cu2TeO6Br2: honeycomb layers of copper(II) ions.

Single crystals of distrontium(II) dicopper(II) tellurium(VI) hexaoxide dibromide, Sr2Cu2TeO6Br2, were synthesized via solid state/gas phase reactions in sealed evacuated silica tubes. The building units are irregular SrO4Br3 polyhedra (a new type of coordination polyhedron around Sr(II)), CuO5 square pyramids and TeO6 octahedra. The CuO5 square pyramids and the TeO6 octahedra together form layers in the bc plane bridged by Sr atoms. The Cu atoms are arranged to form puckered honeycomb layers. The Te atom lies on an inversion centre.

Journal Article↗
PubMed2006

MoCu3TeO7Cl2.0.5H2O.

Single crystals of molybdenum(VI) tricopper(II) tellurium(IV) heptaoxide dichloride hemihydrate, MoCu3TeO7Cl2.0.5H2O, were synthesized via a transport reaction in sealed evacuated silica tubes. All atoms occupy general positions within the triclinic (P1) unit cell. The building units are irregular CuO4Cl and CuO3Cl2 square pyramids, distorted TeO3+1E trigonal bipyramids (E is the lone pair of TeIV) and irregular MoO5 pyramids. The TeO3+1E, CuO4Cl and CuO3Cl2 polyhedra form (110) layers bridged by Mo atoms. The water molecules are located in [100] channels.

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PubMed2005

Ca2CuTe4O10Cl2, a new synthetic tellurium(IV) oxochloride.

Single crystals of dicalcium copper tetratellurium decaoxide dichloride, Ca2CuTe4O10Cl2, were synthesized via a transport reaction in sealed evacuated quartz glass tubes. The building units of the structure are irregular CaO7 polyhedra, centrosymmetric CuO4Cl2 octahedra and two crystallographically distinct TeO4E distorted bipyramids (E being the 5s2 lone pair of TeIV). The TeO4E and CuO4Cl2 polyhedra together form planes that are connected by the Ca atoms. The CuO4Cl2 octahedra are isolated from each other by the other building units.

Journal Article↗
PubMed2003

A synthetic zinc tellurium oxochloride, Zn2(TeO3)Cl2.

Single crystals of dizinc tellurium dichloride trioxide, Zn(2)(TeO(3))Cl(2), were synthesized via a transport reaction in sealed evacuated glass tubes. The compound has a layered structure in which the building units are [ZnO(4)Cl] square pyramids, distorted [ZnO(2)Cl(2)] tetrahedra and [TeO(3)E] tetrahedra (E is the 5s(2) lone pair of the Te(IV) atom), joined through shared edges and corners to form charge-neutral layers. Cl atoms and Te-atom lone pairs protrude from the surfaces of each layer towards adjacent layers, and the layers are held together by dispersion forces only. The compound is isostructural with the synthetic compound CuZn(TeO(3))Cl(2) and the mineral sophiite, Zn(2)(SeO(3))Cl(2).

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