bipyridyl complex
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2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Brian N. Long ◽  
María J. Beltrán-Leiva ◽  
Cristian Celis-Barros ◽  
Joseph M. Sperling ◽  
Todd N. Poe ◽  
...  

AbstractVariations in bonding between trivalent lanthanides and actinides is critical for reprocessing spent nuclear fuel. The ability to tune bonding and the coordination environment in these trivalent systems is a key factor in identifying a solution for separating lanthanides and actinides. Coordination of 4,4′−bipyridine (4,4′−bpy) and trimethylsilylcyclopentadienide (Cp′) to americium introduces unexpectedly ionic Am−N bonding character and unique spectroscopic properties. Here we report the structural characterization of (Cp′3Am)2(μ − 4,4′−bpy) and its lanthanide analogue, (Cp′3Nd)2(μ − 4,4′−bpy), by single-crystal X-ray diffraction. Spectroscopic techniques in both solid and solution phase are performed in conjunction with theoretical calculations to probe the effects the unique coordination environment has on the electronic structure.


2021 ◽  
Vol 20 (2) ◽  
pp. 193-202
Author(s):  
Çiğdem Yörür-Göreci ◽  
Nilay Altaş-Puntar ◽  
Abdullah Toraman ◽  
Nebahat Demirhan

The new salicylaldimine, as O,N-bidentate ligand (HL), containing amino acide ester and its Ru(II) complex [Ru(bpy)2(HL)]Cl2 have been prepared. Synthesized compounds have been structurally characterized by IR, 1H NMR, LC-MS, fluorescence spectroscopy, elemental and thermal (TGA-DSC) analyses. The metal to the ligand ratio of the Ru(II) complex was found to be 1:1. Antifungal activities of the ligand and complex have been investigated. The Ru(II) complex have strong antifungal activity than the ligand against Aspergillus niger.


2021 ◽  
Vol 581 ◽  
pp. 919-927
Author(s):  
Sarah Komaty ◽  
Hayriye Özçelik ◽  
Moussa Zaarour ◽  
Aurélie Ferre ◽  
Samuel Valable ◽  
...  

2020 ◽  
Vol 0 (3) ◽  
pp. 23-28
Author(s):  
A.M. ABDRAKHMANOV ◽  
◽  
L.R. YAKSHEMBETOVA ◽  
B.M. GAREEV ◽  
G.L. SHARIPOV ◽  
...  

NANO ◽  
2019 ◽  
Vol 14 (02) ◽  
pp. 1950024 ◽  
Author(s):  
Xin Xin ◽  
Ning Ma ◽  
Changying Hu ◽  
Qi Liang ◽  
Zhaoyong Bian

An abundant manganese complex-anchored BiOI hybrid system for CO2 photocatalytic conversion was constructed. Layered BiOI and tricarbonyl Mn bipyridyl complex with carboxyl acid groups were connected with covalent bonds and used as visible light antenna and CO2 reduction reaction centers, respectively. The covalent connection of this hybrid system benefits the transfer of electrons from the semiconductor to the Mn complex. The anchoring group (carboxyl) is the key to CO2 reduction for the direct coupling of the two units, facilitating the transfer of electrons from BiOI to the manganese complexes. The photocatalytic properties and stability of the tricarbonyl Mn–bipyridyl complex were significantly enhanced with the aid of anchored BiOI. A high turnover number ([Formula: see text]) of HCOO− formation from CO2 could be achieved using this hybrid system under visible light irradiation.


2018 ◽  
Vol 122 (51) ◽  
pp. 29190-29199 ◽  
Author(s):  
Andrea Santiago-Portillo ◽  
Herme G. Baldoví ◽  
Esther Carbonell ◽  
Sergio Navalón ◽  
Mercedes Álvaro ◽  
...  
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