Quantum caesium

Caesium diuranium hexa­telluride

Single crystals of CsU(2)Te(6) were synthesized from the reaction of U, Te, and Cs(2)Te(3) at 1273 K. CsU(2)Te(6) crystallizes in the space group Cmcm in the CsTh(2)Te(6) structure type. The asymmetric unit comprises one U (site symmetry m2m), one Cs (m2m; half-occupancy) and two Te atoms (m.. and m2m). The structure of CsU(2)Te(6) consists of infinite [U(2)Te(6)] layers perpendicular to [010] ...

Twinned caesium cerium(IV) penta­fluoride

Single-crystals of CsCeF5 were synthesized hydro-thermally. The crystal under investigation was twinned by pseudo-merohedry with a twofold rotation around the c axis as an additional twinning operation. The crystal structure is built of layers of distorted edge- and corner-sharing CeF8 square-anti-prisms. The Cs(+) cations are located between the layers and exhibit coordination numbers of nine....

Caesium-templated lanthanoid-containing polyoxotungstates.

A family of novel lanthanoid-containing polytungstoarsenate(iii) polyanions with interesting structural features has been isolated: six lacunary {alpha-AsW(9)O(33)} building blocks comprising unusual pyramidal WO(5) units are templated by a caesium cation in a central cavity of the structure.

Spectral response of anth"y-caesium photocathodes

Measurements have been made of the relative photoileclric quantum eficiency ?(A) of SbCs3 cathodes of M ith Pyrex and quartz windows, from ~=200-650 mp. ?(A) depends on the window transinittame W(h), the cathode absorbance A(h, d) , the absolute photoelectric quantum efiiciency Qo(h) and the p/1otoelectron escape probability f (A, d). Comparison Irith other data has allowed the separation of th...

Confining caesium in expanded natural Perlite