Magnetic Observation of Anion Binding in Iron Coordination Complexes: Toward Spin-Switching Chemosensors

2009 ◽  
Vol 131 (1) ◽  
pp. 32-33 ◽  
Author(s):  
Zhaoping Ni ◽  
Matthew P. Shores
Keyword(s):  
Coordination Complexes ◽  
Anion Binding ◽  
Iron Coordination ◽  
Spin Switching

scholarly journals Doubling the Carbonate-Binding Capacity of Nanojars by the Formation of Expanded Nanojars

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3083
Author(s):  
Wisam A. Al Isawi ◽  
Gellert Mezei
Keyword(s):  
Co2 Fixation ◽  
Binding Capacity ◽  
Coordination Complexes ◽  
Anion Binding ◽  
Ionization Mass ◽  
X Ray ◽  
Carbonate Ion ◽  
Carbonate Ions ◽  
Supramolecular Coordination ◽  
Hydration Energies

Anion binding and extraction from solutions is currently a dynamic research topic in the field of supramolecular chemistry. A particularly challenging task is the extraction of anions with large hydration energies, such as the carbonate ion. Carbonate-binding complexes are also receiving increased interest due to their relevance to atmospheric CO2 fixation. Nanojars are a class of self-assembled, supramolecular coordination complexes that have been shown to bind highly hydrophilic anions and to extract even the most hydrophilic ones, including carbonate, from water into aliphatic solvents. Here we present an expanded nanojar that is able to bind two carbonate ions, thus doubling the previously reported carbonate-binding capacity of nanojars. The new nanojar is characterized by detailed single-crystal X-ray crystallographic studies in the solid state and electrospray ionization mass spectrometric (including tandem MS/MS) studies in solution.

scholarly journals A bottom up approach towards artificial oxygenases by combining iron coordination complexes and peptides

2017 ◽  
Vol 8 (5) ◽  
pp. 3660-3667 ◽  
Author(s):  
Olaf Cussó ◽  
Michael W. Giuliano ◽  
Xavi Ribas ◽  
Scott J. Miller ◽  
Miquel Costas
Keyword(s):  
Hydrogen Peroxide ◽  
Coordination Complexes ◽  
Asymmetric Epoxidation ◽  
Coordination Complex ◽  
High Yield ◽  
Aqueous Hydrogen Peroxide ◽  
Bottom Up ◽  
Iron Coordination

The combination of peptides and a chiral iron coordination complex catalyzes high yield highly asymmetric epoxidation with aqueous hydrogen peroxide.

scholarly journals Tracking excited-state charge and spin dynamics in iron coordination complexes

Nature ◽  
2014 ◽  
Vol 509 (7500) ◽  
pp. 345-348 ◽  
Author(s):  
Wenkai Zhang ◽  
Roberto Alonso-Mori ◽  
Uwe Bergmann ◽  
Christian Bressler ◽  
Matthieu Chollet ◽  
...  
Keyword(s):  
Excited State ◽  
Spin Dynamics ◽  
Coordination Complexes ◽  
Iron Coordination ◽  
State Charge

scholarly journals Design of Iron Coordination Complexes as Highly Active Homogenous Water Oxidation Catalysts by Deuteration of Oxidation-Sensitive Sites

2018 ◽  
Vol 141 (1) ◽  
pp. 323-333 ◽  
Author(s):  
Zoel Codolà ◽  
Ilaria Gamba ◽  
Ferran Acuña-Parés ◽  
Carla Casadevall ◽  
Martin Clémancey ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Coordination Complexes ◽  
Oxidation Catalysts ◽  
Highly Active ◽  
Iron Coordination

Accessing the inaccessible: discrete multinuclear coordination complexes and selective anion binding attainable only by tethering ligands together

2017 ◽  
Vol 53 (6) ◽  
pp. 1029-1032 ◽  
Author(s):  
Basil M. Ahmed ◽  
Gellert Mezei
Keyword(s):  
Coordination Complexes ◽  
Anion Binding ◽  
Selective Binding ◽  
Sulfate Anion

The use of tethers between ligands allows for the preparation of novel multimetallic complexes, not obtainable without tethers, and leads to unexpected properties, such as selective binding of the carbonate vs. sulfate anion by nanojars.

Robust Iron Coordination Complexes with N-Based Neutral Ligands As Efficient Fenton-Like Catalysts at Neutral pH

2013 ◽  
Vol 47 (17) ◽  
pp. 9918-9927 ◽  
Author(s):  
Maite Canals ◽  
Rafael Gonzalez-Olmos ◽  
Miquel Costas ◽  
Anna Company
Keyword(s):  
Coordination Complexes ◽  
Neutral Ph ◽  
Iron Coordination ◽  
Neutral Ligands

scholarly journals Isomers in the chemistry of iron coordination compounds

2010 ◽  
Vol 8 (5) ◽  
pp. 965-991 ◽  
Author(s):  
Milan Melnik ◽  
Mária Kohútová
Keyword(s):  
Coordination Chemistry ◽  
Bond Length ◽  
Iron Atom ◽  
Coordination Compounds ◽  
Structural Data ◽  
Coordination Complexes ◽  
Oxidation States ◽  
Wide Field ◽  
Iron Coordination ◽  
Atom Bond

AbstractThe coordination chemistry of iron covers a wide field, as shown by a survey covering the crystallographic and structural data of almost one thousand and three hundred coordination complexes. About 6.7% of these complexes exist as isomers and are summarized in this review. Included are distortion (96.6%) and cis — trans (3.4%) isomers. These are discussed in terms of the coordination about the iron atom, bond length and interbond angles. Distortion isomers, differing only by degree of distortion in Fe-L, Fe-L-Fe and L-Fe-L parameters, are the most common. Iron is found in the oxidation states zero, +2 and +3 of which +3 is most common. The stereochemistry around iron centers are tetrahedral, five — coordinated (mostly trigonal — bipyramid) and six — coordinated. The most common ligands have O and N donor sites.

scholarly journals Manipulating charge transfer excited state relaxation and spin crossover in iron coordination complexes with ligand substitution

2017 ◽  
Vol 8 (1) ◽  
pp. 515-523 ◽  
Author(s):  
Wenkai Zhang ◽  
Kasper S. Kjær ◽  
Roberto Alonso-Mori ◽  
Uwe Bergmann ◽  
Matthieu Chollet ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Free Electron ◽  
Free Electron Laser ◽  
Spin Crossover ◽  
Coordination Complexes ◽  
Ligand Substitution ◽  
X Ray ◽  
Laser Measurements ◽  
Iron Coordination

Optical and X-ray free-electron laser measurements reveal ligand substitution in an Fe(ii)-centered complex extends its MLCT lifetime.

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