Characterization of crystal system of BaPb1−xBixO3 with X-ray diffraction for synchrotron radiation

1997 ◽  
Vol 102 (7) ◽  
pp. 561-564 ◽  
Author(s):  
T. Hashimoto ◽  
R. Hirasawa ◽  
T. Kobayashi ◽  
H. Hirai ◽  
H. Tagawa ◽  
...  
2015 ◽  
Vol 1130 ◽  
pp. 123-126 ◽  
Author(s):  
Jin Lan Xia ◽  
Hong Chang Liu ◽  
Zhen Yuan Nie ◽  
Hong Rui Zhu ◽  
Yun Yang ◽  
...  

This article presents the progress on characterization of the interfacial interaction between sulfur oxidizing microbes and sulfide minerals by using of synchrotron radiation-based techniques including S/Fe/Cu X-ray absorption near-edge structure spectroscopy (XANES), X-ray Diffraction (XRD), micro-X-ray fluorescence (μ-XRF) mapping and micro-scanning transmission X-ray microscopy (μ-STXM) imaging, together with other accessory approaches such as SEM/EDS, Raman spectroscopy, FT-IR spectroscopy, and electrochemical methods as well as comparative proteomics methodology.


2011 ◽  
Vol 66 (7) ◽  
pp. 755-758
Author(s):  
Sari M. Närhi ◽  
Janne Asikkala ◽  
Jatta Kostamo ◽  
Marja K. Lajunen ◽  
Raija Oilunkaniemi ◽  
...  

N,N´-Dipropyl-N,N,N´ ,N´-tetramethyl-1,2-ethylenediammonium dichloride (1) and dibromide (2) were prepared by the reaction of N,N,N´,N´-tetramethyl-1,2-ethylenediamine and the corresponding 1-halopropane. The structures of the compounds were characterized by single-crystal X-ray diffraction. 1 · 2H2O crystallizes in the triclinic crystal system, space group P1, with Z = 1, and 2 in the monoclinic crystal system, space group P21/c, with Z = 2. The crystal structures of the salts consist of discrete dications and halide anions. The packing in 1 · 2H2O consists of layers of cations with the chloride anions and water molecules forming hydrogen-bonded chains between the cation layers. In 2, the strongest H· · ·Br hydrogen bonds of 2.8138(6) and 2.8187(7) °A link the cations and anions into doublestranded chains. In both salts, cations and anions are also linked together by a further weak C-H· · ·Cl/Br hydrogen bonding network.


1996 ◽  
Vol 49 (12) ◽  
pp. 1273 ◽  
Author(s):  
AL Maclean ◽  
GJ Foran ◽  
BJ Kennedy ◽  
P Turner ◽  
TW Hambley

The structure of 5,10,15,20-tetraphenylporphinatonickel(II) ([Ni( tpp )]) has been studied by both X-ray diffraction (powder and single-crystal methods) and EXAFS. The bond lengths obtained from analysis of the EXAFS agree, within standard deviations, with those obtained from the X-ray diffraction studies. The Ni-N bond length of 1.93(1) Ǻ agrees especially well with the value of 1.931(2) Ǻ obtained from the single-crystal analysis. The powder X-ray diffraction pattern, collected by using synchrotron radiation, is presented.


1998 ◽  
Vol 12 (23) ◽  
pp. 991-993
Author(s):  
L. K. Kaliyaperumal ◽  
J. Srinivas ◽  
K. Jeyabalan

Synthesis and characterization of La 2 Ca 2 Cu 2 O 7 compound at ambient pressure is reported here. The powder X-ray diffraction analysis shows that the compound crystallizes in an orthorhombic crystal system with lattice parameters a = 5.770(4) Å, b = 5.887(7) Å and c = 27.37(2) Å.


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