منابع مشابه
Rubidium-diarsasilicat(IV) Rb2SiAs2, ein Derivat der SiS2-Struktur
Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-7000 Stuttgart 80 Z. Naturforsch. 41b, 731-735 (1986); eingegangen am 24. Februar 1986 Rubidium Diarsasilicate(IV), Preparation, Structure Rb2SiAs2 was found as a byproduct in the course of the RbAs synthesis in a quartz container. The direct synthesis from the elements yields pure samples within 5 h at 925 K. Rb2SiAs2 forms tra...
متن کاملSuperconductivity in rubidium - substituted
We report on the synthesis and the physical properties of Ba1−xRbxTi2Sb2O (x ≤ 0.4) by x-ray diffraction, superconducting quantum interference device magnetometry, resistivity, and specificheat measurements. Upon hole doping by substituting Ba with Rb, we find superconductivity with a maximum Tc=5.4 K. Simultaneously, the charge-density-wave transition temperature is strongly reduced from TCDW�...
متن کاملAtomic Hyperfine Splitting in Rubidium
In its ground state, rubidium (Rb) has a single 5s electron outside a closed shell; the principal structure of its excited states is therefore similar to that of hydrogen. The first excited state is split in two by the spin-orbit interaction, and each of these levels is split further by the hyperfine interaction. Neglecting relativistic and reduced-mass effects, the Hamiltonian consists of four...
متن کاملDetermination of Rubidium in Seawater
Rubidium concentrations in seawater from various locations and depths to 3,900 m have been determined using two independent techniques--direct flame photometry and mass spectrometry. Results of these two techniques agree within estimated errors and indicate that the rubidium content in the oceans is uniform within H$% with values varying about 120 pg/liter. Sediment from the sea floor below a d...
متن کاملRubidium in Psychiatry: Research Implications
MALEK-AHMADI, P AND J A WILLIAMS Rubadturn m psychtatry Research tmphcattons PHARMACOL BIOCHEM BEHAV 21: Suppl 1, 49-50, 1984--A brief overview of the use of rubldmm m affectlve disorders and schlzophrema is presented Although antidepressant action of rubidium has not been supported by adequate number of controlled studms, its potential contribution to psychiatry warrants further mvestlgatmns E...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Die Naturwissenschaften
سال: 1922
ISSN: 0028-1042,1432-1904
DOI: 10.1007/bf01565362