Synthesis of a Rhodium(III) Diethyl μ-Carbonato Complex in the Reaction of CO2, H2O, and Ethylene

2011 ◽  
Vol 30 (22) ◽  
pp. 6060-6062 ◽  
Author(s):  
Jun-Chul Choi ◽  
Kazufumi Kohno ◽  
Michiko Otsuka ◽  
Hiroyuki Yasuda ◽  
Toshiyasu Sakakura
Keyword(s):  
Carbonato Complex

scholarly journals Direct Synthesis of (K0.5Na0.5)NbO3Powders by Mechanochemical Method

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Nguyen Duc Van
Keyword(s):  
Milling Time ◽  
Direct Synthesis ◽  
Weight Ratio ◽  
Intermediate Species ◽  
X Ray Diffraction ◽  
Mechanochemical Method ◽  
X Ray ◽  
Milling Parameters ◽  
First Time ◽  
Carbonato Complex

The synthesis and structural properties of lead-free piezoelectric (K0.5Na0.5)NbO3powders prepared by mechanochemical method using Nb2O5, K2CO3, and Na2CO3as starting materials were reported. X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and scanning electron microscopy were used to characterize the prepared samples. Results showed that, for the first time, by selecting the milling speed of 600 rpm and the ball-to-powder weight ratio of 35 : 1 as milling parameters, pure (K0.5Na0.5)NbO3crystalline phase was obtained directly in the as-milled samples after 5 h of milling time. The existence of a carbonato complex betweenCO32−and Nb5+ions as an intermediate species of the formation of (K0.5Na0.5)NbO3was also found.

Decomposition of uranyl peroxo-carbonato complex ion in the presence of metal oxides in carbonate media

2015 ◽  
Vol 306 (3) ◽  
pp. 761-768 ◽  
Author(s):  
Dong-Yong Chung ◽  
Min-Sung Park ◽  
Keun-Young Lee ◽  
Eil-Hee Lee ◽  
Kwang-Wook Kim ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Carbonato Complex ◽  
Complex Ion

Synthesis, properties, and crystallographic characterization of a dinuclear .mu.-carbonato complex of cobalt(III): [(NH3)3Co(.mu.-OH)2(.mu.-CO3)Co(NH3)3]SO4.5H2O

1981 ◽  
Vol 20 (2) ◽  
pp. 376-381 ◽  
Author(s):  
Melvyn Rowen. Churchill ◽  
Romana A. Lashewycz ◽  
Kanayuthu. Koshy ◽  
Tara P. Dasgupta
Keyword(s):  
Synthesis Properties ◽  
Carbonato Complex

Evaluation of the stability of uranyl peroxo-carbonato complex ions in carbonate media at different temperatures

2012 ◽  
Vol 233-234 ◽  
pp. 213-218 ◽  
Author(s):  
Kwang-Wook Kim ◽  
Keun-Young Lee ◽  
Dong-Yong Chung ◽  
Eil-Hee Lee ◽  
Jei-Kwon Moon ◽  
...  
Keyword(s):  
Complex Ions ◽  
Different Temperatures ◽  
The Stability ◽  
Carbonato Complex

The formation of a carbonato complex during the mechanochemical treatment of a Na2CO3–Nb2O5 mixture

2006 ◽  
Vol 177 (33-34) ◽  
pp. 2987-2995 ◽  
Author(s):  
T ROJAC ◽  
M KOSEC ◽  
P SEGEDIN ◽  
B MALIC ◽  
J HOLC
Keyword(s):  
Mechanochemical Treatment ◽  
Carbonato Complex

Modification and Uptake of a Cisplatin Carbonato Complex by Jurkat Cells

2006 ◽  
Vol 70 (1) ◽  
pp. 348-355 ◽  
Author(s):  
Corey R. Centerwall ◽  
Kirk A. Tacka ◽  
Deborah J. Kerwood ◽  
Jerry Goodisman ◽  
Bonnie B. Toms ◽  
...  
Keyword(s):  
Jurkat Cells ◽  
Carbonato Complex

Spectroscopic Studies on the Binding of Uranium by Brown Coal

1978 ◽  
Vol 32 (5) ◽  
pp. 486-488 ◽  
Author(s):  
E. Koglin ◽  
H. J. Schenk ◽  
K. Schwochau
Keyword(s):  
Infrared Spectroscopy ◽  
Cation Exchange ◽  
Brown Coal ◽  
Sea Water ◽  
Exchange Process ◽  
Spectroscopic Studies ◽  
Bidentate Ligands ◽  
Carboxylate Groups ◽  
Stretching Vibration ◽  
Carbonato Complex

Brown coal removes uranium from sea water where it is present mainly as [UO2(CO3)3]4−. The adsorption and binding of uranium is studied by infrared spectroscopy. The spectra of the coal-uranium adducts still exhibit the asymmetric stretching vibration of the uranyl ion, but no CO32− frequencies, suggesting that uranium is retained as UO22+. The coal humic acids are shown to be responsible for the decomposition of the carbonato complex. The subsequent uptake of uranium is not a pure cation exchange process since the shift of the asymmetric uranyl stretching frequency from 950 cm−1 (hydrated UO22+) to 890 cm−1 points to complexation of UO22+ by carboxylate groups which act as bidentate ligands.

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