In Situ Structural Characterization of Ferric Iron Dimers in Aqueous Solutions: Identification of μ-Oxo Species

2013 ◽  
Vol 52 (12) ◽  
pp. 6788-6797 ◽  
Author(s):  
Mengqiang Zhu ◽  
Brendan W. Puls ◽  
Cathrine Frandsen ◽  
James D. Kubicki ◽  
Hengzhong Zhang ◽  
...  
Author(s):  
Shabana Noor ◽  
Richard Goddard ◽  
Fehmeeda Khatoon ◽  
Sarvendra Kumar ◽  
Rüdiger W. Seidel

AbstractSynthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes with the formula [ZnLn(HL)(µ-OAc)(NO3)2(H2O)x(MeOH)1-x]NO3 · n H2O · n MeOH [Ln = Pr (1), Nd (2)] and the crystal and molecular structure of [ZnNd(HL)(µ-OAc)(NO3)2(H2O)] [ZnNd(HL)(OAc)(NO3)2(H2O)](NO3)2 · n H2O · n MeOH (3) are reported. The asymmetrical compartmental ligand (E)-2-(1-(2-((2-hydroxy-3-methoxybenzylidene)amino)-ethyl)imidazolidin-2-yl)-6-methoxyphenol (H2L) is formed from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation, resulting in a peripheral imidazoline ring. The structures of 1–3 were revealed by X-ray crystallography. The smaller ZnII ion occupies the inner N2O2 compartment of the ligand, whereas the larger and more oxophilic LnIII ions are found in the outer O2O2’ site. Graphic Abstract Synthesis and structural characterization of two heterodinuclear ZnII-LnIII complexes (Ln = Pr, Nd) bearing an asymmetrical compartmental ligand formed in situ from N1,N3-bis(3-methoxysalicylidene)diethylenetriamine (H2valdien) through intramolecular aminal formation are reported.


2012 ◽  
Vol 544 ◽  
pp. 34-38 ◽  
Author(s):  
T. Hosokai ◽  
A. Hinderhofer ◽  
A. Vorobiev ◽  
C. Lorch ◽  
T. Watanabe ◽  
...  

1990 ◽  
Vol 112 (12) ◽  
pp. 4821-4830 ◽  
Author(s):  
David R. Corbin ◽  
L. Abrams ◽  
G. A. Jones ◽  
M. M. Eddy ◽  
W. T. A. Harrison ◽  
...  

2019 ◽  
Vol 5 (4) ◽  
pp. 457-467 ◽  
Author(s):  
Francisco M. Braz Fernandes ◽  
Edgar Camacho ◽  
Patrícia F. Rodrigues ◽  
Patrick Inácio ◽  
Telmo G. Santos ◽  
...  

2015 ◽  
Vol 44 (6) ◽  
pp. 2597-2605 ◽  
Author(s):  
Madeline Basile ◽  
Daniel K. Unruh ◽  
Erin Flores ◽  
Adam Johns ◽  
Tori Z. Forbes

Structural characterization of U(vi) : (Al(iii), Fe(iii)) : citrate complexes provides insight into the formation of polynuclear clusters present in environmentally-relevant aqueous solutions.


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