scholarly journals Roles of Acetone and Diacetone Alcohol in Coordination and Dissociation Reactions of Uranyl Complexes

2012 ◽  
Vol 51 (23) ◽  
pp. 12768-12775 ◽  
Author(s):  
Daniel Rios ◽  
George Schoendorff ◽  
Michael J. Van Stipdonk ◽  
Mark S. Gordon ◽  
Theresa L. Windus ◽  
...  
Keyword(s):  
Uranyl Complexes ◽  
Diacetone Alcohol

Uranyl Complexes of Alkyl-Bridged Ditopic Diaminotetraphenol Ligands and Their Use as Uranyl Ion Extractors

2013 ◽  
Vol 52 (15) ◽  
pp. 8591-8600 ◽  
Author(s):  
Antti Riisiö ◽  
Ari Väisänen ◽  
Reijo Sillanpää
Keyword(s):  
Uranyl Ion ◽  
Uranyl Complexes

The Diacetone Alcohol—Hydroxide Ion Reaction from the Standpoint of Ion-Dipole Theory

1944 ◽  
Vol 66 (11) ◽  
pp. 1823-1826 ◽  
Author(s):  
Edward S. Amis ◽  
George Jaffé ◽  
Ralph Theodore Overman
Keyword(s):  
Hydroxide Ion ◽  
Diacetone Alcohol

PYRIDINE N-OXIDE COMPLEXES OF ZIRCONYL, THORIUM, AND URANYL PERCHLORATES

1964 ◽  
Vol 42 (4) ◽  
pp. 856-860 ◽  
Author(s):  
P. Rama Murthy ◽  
C. C. Patel
Keyword(s):  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Visible Region ◽  
Lone Pair ◽  
Vibrational Structure ◽  
Uranyl Complexes ◽  
Bond Character

Pyridine N-oxide complexes having the composition ZrO(Py•O)6(ClO4)2, Th(Py•O)8(ClO4)4, and UO2(Py•O)5(ClO4)2 have been prepared. The infrared and electronic absorption spectra show that the bonding between the metal and pyridine N-oxide in the complexes has occurred by donation of the lone pair of p-electrons on oxygen to the metal, and that the π-bond character of NO group increases in the complexes as uranyl < thorium < zirconyl. The decrease in the vibrational structure of the UO22+ spectrum in the visible region indicates strong coordination of pyridine N-oxide to the uranyl group. The decomposition temperatures of zirconyl, thorium, and uranyl complexes are 307, 350, and 319 °C respectively.

scholarly journals Mandelohydroxamic Acid as Ligand for Copper(II) 15-Metallacrown-5 Lanthanide(III) and Copper(II) 15-Metallacrown-5 Uranyl Complexes

2006 ◽  
Vol 2006 (7) ◽  
pp. 1466-1474 ◽  
Author(s):  
Tatjana N. Parac-Vogt ◽  
Antoine Pacco ◽  
Peter Nockemann ◽  
Yao-Feng Yuan ◽  
Christiane Görller-Walrand ◽  
...  
Keyword(s):  
Uranyl Complexes

27Al NMR Study of Coordination States of Aluminum-tri-sec-butoxide Dissolved in Diacetone Alcohol

1994 ◽  
Vol 23 (8) ◽  
pp. 1507-1510 ◽  
Author(s):  
Kiyoharu Tadanaga ◽  
Tsutomu Minami ◽  
Noboru Tohge
Keyword(s):  
27Al Nmr ◽  
Diacetone Alcohol ◽  
Nmr Study

scholarly journals Investigation on the Synthesis and Photocatalytic Property of Uranyl Complexes of the β-Diketonates Biscatecholamide Ligand

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Qingchun Zhang ◽  
Bo Jin ◽  
Rufang Peng ◽  
Xiaofang Wang ◽  
Zhaotao Shi ◽  
...  
Keyword(s):  
Oxygen Atom ◽  
Photocatalytic Degradation ◽  
Elemental Analysis ◽  
Uranyl Nitrate ◽  
Rhodamine B ◽  
Photocatalytic Property ◽  
Uranyl Ion ◽  
Uranyl Complexes ◽  
H Nmr ◽  
Degradation Properties

A series of uranyl complexes have been synthesized by reacting hexadentate ligands CH2[COO (CH2)nCAM; n=2, 3, 4]2 [CAM = 2,3-Ph(OH)2CONH] containing the catecholamide (CAM) group and β-diketonates framework with uranyl nitrate. They were characterized by FTIR, UV-vis, 1H NMR, XPS, TGA, and elemental analysis. The analysis revealed that oxygen atom of β-diketonate did not bind to uranyl ion in complexes 1–3. The photocatalytic degradation properties of the target complexes for degradation of rhodamine B (RhB) were investigated. The result indicated that approximately 74%, 71%, and 67% RhB were degraded in the presence of complexes 1–3 after about 210 min, respectively. Consequently, complexes 1–3 have excellent photocatalytic degradation property.

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