منابع مشابه
Phosphorescence Decay in Thallium-Doped Ammonium Chloride
The phosphorescence decay rates of thallium-doped ammonium chloride (NHUChTl) phosphors, prepared by crystallization from aqueous solution, have been studied at room temperature for near-ultraviolet emission. The effects of impurity concentration as well as thermal and/or mechanical treatment on the decay rates have been examined. Phosphorescence centres consisting of a Tl+ion and a nearby nega...
متن کاملThallium-201 chloride scintigraphy in soft tissue tumors.
OBJECTIVE We report the findings of Thallium-201 chloride ((201)TlCl) scintigraphy and consider how to use this technique to evaluate the character of soft tissue lesions. PATIENTS AND METHODS We enrolled 91 consecutive patients (45 males and 46 females, age range 8-91-years-old). Nineteen patients were malignant and 72 were benign. Patients were scanned 15 minutes (early phase) and 3 hours (...
متن کاملInvisible photochromism of diarylethene derivatives.
Diarylethene derivatives with oxidized thiophene rings shift their absorption band to a shorter wavelength in the UV region upon photocyclization; no color change was observed during the photochromic reaction, and the invisible photochromism is advantageous for devices used under room light.
متن کاملOxoporphyrins - The Molecular Structure of 5,15-Dioxo-2,3,7,8,12,13,17,18-octaethyl-porphodimethene-thallium(III) Chloride
The crystal structure of the title compound was determined in order to obtain structural information on a tetrapyrrole bearing meso-oxo-functions. C36H 4,N 40 2T1C1 • CH 3OH, P 1, a = 10.358(2), b = 12.344(3), c = 15.490(3) Ä, a = 84.36(2)°, ß = 78.53(2)°, y = 82.26(2)°, V = 1918.2(7) Ä3, Z = 2, 130 K, R = 0.04 for 6749 reflections with I > 4er(I). The structure consists of the penta-coordinate...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1973
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.46.848