A spectroscopic study of solvent effects on the formation of Cu(II)-chloride complexes in aqueous solution

2021 ◽  
Author(s):  
ning zhang ◽  
Jianfeng Tang ◽  
Yuntian Ma ◽  
Minghui Liang ◽  
Dewen Zeng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Spectroscopic Study ◽  
Solvent Effects ◽  
Chloride Complexes ◽  
Concentrated Aqueous Solutions ◽  
X Ray ◽  
X Ray Absorption

A combination of electronic (UV-Vis) and X-ray absorption (EXAFS, XANES) spectroscopies has been used to investigate the formation of copper(II)/chloride complexes in concentrated aqueous solutions. It is established that lowering...

Spectroscopy as a tool to detect multinuclear Cu(ii)–triethanolamine complexes in aqueous solution

2018 ◽  
Vol 47 (11) ◽  
pp. 3755-3763 ◽  
Author(s):  
Petra Lommens ◽  
Pieter Tack ◽  
Luce Vander Elst ◽  
Isabel Van Driessche ◽  
Laszlo Vincze ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fine Structure ◽  
Aqueous Solutions ◽  
Nmr Relaxation ◽  
Relaxation Dispersion ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption

The Evans method, Extended X-ray Absorption Fine Structure (EXAFS) and NMR relaxation dispersion (NMRD) spectroscopy were used to prove the existence of multimeric Cu(ii)–triethanolamine species in aqueous solutions.

X-ray absorption spectroscopy of aqueous solutions in the X-ray energy region from 1800 to 3700 eV

2009 ◽  
Vol 87 (5) ◽  
pp. 601-611 ◽  
Author(s):  
Astrid Jürgensen
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Aqueous Solutions ◽  
Ion Concentration ◽  
Double Crystal ◽  
X Ray ◽  
Double Crystal Monochromator ◽  
Liquid Cell ◽  
Window Material ◽  
X Ray Absorption

A methodology for the X-ray XANES and EXAFS analyses of aqueous solutions was developed for the Double Crystal Monochromator (DCM) beamline of the Canadian Synchrotron Radiation Facility (CSRF). The technique is based on the implementation of a liquid cell, which is compatible with the standard solid-state sample holding mechanism used at the beamlines of CSRF and the Canadian Light Source (CLS). Aluminized Mylar film with a thickness of 5 μm has been thoroughly investigated for use as a window material for the cell, and found acceptable for the collection of the S, Cl, and K K-edge spectra of ions in aqueous solution, but not for P K-edge or Rb L2,3-edge spectra. Some of the limitations of this methodology, such as diffusion of the solution through the window and the detection limit at low ion concentration, are investigated and discussed.

The role of Te(IV) and Bi(III) chloride complexes in hydrothermal mass transfer: An X-ray absorption spectroscopic study

2016 ◽  
Vol 425 ◽  
pp. 37-51 ◽  
Author(s):  
Barbara E. Etschmann ◽  
Weihua Liu ◽  
Allan Pring ◽  
Pascal V. Grundler ◽  
Blake Tooth ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Spectroscopic Study ◽  
Chloride Complexes ◽  
X Ray ◽  
X Ray Absorption

The Structure of Zinc Chloride Complexes in Aqueous Solution

1996 ◽  
Vol 51 (1-2) ◽  
pp. 63-70 ◽  
Author(s):  
M. Maeda ◽  
T. Ito ◽  
M. Hori ◽  
G. Johansson
Keyword(s):  
Aqueous Solution ◽  
Water Molecule ◽  
Aqueous Solutions ◽  
Zinc Chloride ◽  
Large Angle ◽  
Chloro Complex ◽  
Chloride Complexes ◽  
X Ray ◽  
Raman Spectroscopic ◽  
X Ray Scattering

Abstract The structure of zinc chloride complexes with different ratios of chloride to zinc, formed in concentrated ZnCl2 aqueous solutions, were determined from large-angle X-ray scattering using concentrations of the chloride complexes estimated by complementary Raman spectroscopic measurements. The highest chloro complex, [ZnCl4]2-, is tetrahedral with a Zn-Cl bond length of 2.294(4) Å. The trichloro complex, [ZnCl3]-, which coordinates one water molecule, is pyramidal with the Cl-Zn-Cl angle 111°. The Zn-Cl and the Zn-H2O bonds are 2.282(4) and 1.9 Å, respectively. The two lower complexes, [ZnCl2] and [ZnCl]+ , cannot be separated by Raman spectra. The average Zn-Cl distance in these complexes is 2.24 Å, and the average Zn-H2O distance is 1.9 Å. In [Zn(H2O)6]2+ the Zn-H2O distance is 2.15 Å.

Ultrafast X-ray measurements of the glass-like, high-frequency stiffness of aqueous solutions

2017 ◽  
Vol 19 (31) ◽  
pp. 21095-21100 ◽  
Author(s):  
Yishuo Jiao ◽  
Bernhard Adams ◽  
Christoph Rose-Petruck
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Absorption Spectroscopy ◽  
High Frequency ◽  
Ultrafast Dynamics ◽  
Molecular Motions ◽  
X Ray ◽  
X Ray Absorption ◽  
Hydrogen Bonded

The ultrafast dynamics of the domains surrounding solutes in aqueous solution were measured using laser-generating GHz phonons in 30 mM ferrocyanide solutions and the resulting molecular motions of the solutes and their hydrogen-bonded solvation shells were detected using ultrafast X-ray absorption spectroscopy (UXAS).

Unraveling the Substrate−Metal Binding Site of Ferrochelatase:  An X-ray Absorption Spectroscopic Study†

Biochemistry ◽  
2002 ◽  
Vol 41 (15) ◽  
pp. 4809-4818 ◽  
Author(s):  
Gloria C. Ferreira ◽  
Ricardo Franco ◽  
Arianna Mangravita ◽  
Graham N. George
Keyword(s):  
Spectroscopic Study ◽  
Binding Site ◽  
Metal Binding ◽  
Metal Binding Site ◽  
X Ray ◽  
Substrate Metal ◽  
X Ray Absorption

scholarly journals Operando soft X-ray absorption spectroscopic study on microporous carbon-supported sulfur cathodes

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39875-39880
Author(s):  
Yao Xiao ◽  
Kentaro Yamamoto ◽  
Yukiko Matsui ◽  
Toshiki Watanabe ◽  
Koji Nakanishi ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Spectroscopic Study ◽  
Microporous Carbon ◽  
Sulfur Cathode ◽  
X Ray ◽  
X Ray Absorption ◽  
Sulfur Cathodes

The reaction mechanism of the sulfur cathode in the microporous carbon during discharge was observed by operando XAS.

Electronic Structures of Crystalline and Aqueous Solutions of LiBr, NaBr, KBr, and KBrO3:  In Situ Br L-Edge Near-edge X-ray Absorption Fine Structure

2003 ◽  
Vol 107 (46) ◽  
pp. 12562-12565 ◽  
Author(s):  
Shuji Matsuo ◽  
Ponnusamy Nachimuthu ◽  
Dennis W. Lindle ◽  
Hisanobu Wakita ◽  
Rupert C. C. Perera
Keyword(s):  
Fine Structure ◽  
Aqueous Solutions ◽  
Electronic Structures ◽  
X Ray ◽  
Absorption Fine ◽  
X Ray Absorption
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