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1. chinaXiv:201711.00158 [pdf]

Synthesis and Characterization of a Novel Coordination Complex Based on Fluorescein

ZHANG Guan-Hua; WU Xiao-Yuan; WANG Sa-Sa; JIANG Xiao-Yu; LU Can-Zhong
Subjects: Chemistry >> Physical Chemistry

A novel coordination complex, {[Cd2(C20H10O5)2(H2O)4]·10H2O}n, has been synthesized based on fluorescein (2-(6-hydroxy-3-oxo-3H-xanthen-9-yl) benzoic acid) and systematically characterized by elemental analysis, infrared (IR) spectrum, thermo gravimetric analysis (TGA), powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic, space group P2/n with a = 20.428(5), b = 8.084(2), c = 21.689(5) ?, β = 96.360(5)?, Mr = 993.46, V = 3559.7(15) ?3, Z = 4, Dx = 1.845 g/cm3, μ = 1.276 mm-1, F(000) = 1974.0, GOOF = 1.044, λ(MoKα) = 0.71073 ?, the final R = 0.0553 and wR = 0.1720 for 7245 observed reflections with I > 2σ(I).

submitted time 2017-11-05 From cooperative journals:《结构化学》 Hits895Downloads498 Comment 0

2. chinaXiv:201608.00188 [pdf]

Preliminary Test Results of LAr Prototype Detector

Li Pei-Xian; Guan Meng-Yun; Yang Chang-Gen; Zhang Peng; Liu Jin-Chang; Zhang Yong-Peng; Guo Cong; Wang Yi
Subjects: Physics >> Nuclear Physics

WIMPs are a well-motivated galactic dark matter candidate. Liquid argon (LAr) is an attractive target for the direct detection of WIMPs. The LAr prototype detector is designed to study the technology and property of LAr detector. The prototype detector have an active volume containing 0.65 kg of liquid argon. The liquid nitrogen(LN) cooling system allows the temperature of liquid argon to be maintained at the boiling point (87.8 K) with fluctuations less than 0.1 K. The prototype was calibrated with a Na22 source, with the light yield 1.591?.019 p.e./keV for the 511 keV gamma rays using the domestic-made argon purification system.

submitted time 2016-08-30 Hits1157Downloads674 Comment 0

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