scholarly journals Controlling the nuclearity and topology of cobalt complexes through hydration at the ppm level

2020 ◽  
Vol 8 (13) ◽  
pp. 4401-4407 ◽  
Author(s):  
Raúl Castañeda ◽  
Mathieu Rouzières ◽  
Rodolphe Clérac ◽  
Jaclyn L. Brusso
Keyword(s):  
Spin State ◽  
Cobalt Complexes ◽  
Level Control ◽  
Cobalt Ions ◽  
Degree Of Hydration ◽  
And Topology ◽  
Magnetic Analysis ◽  
Ppm Level

Polynuclear cobalt complexes in which nuclearity and topology can be controlled via ppm level control over the degree of hydration (300 vs. 10 000 ppm). Structural and magnetic analysis were used to elucidate the spin state of the cobalt ions.

scholarly journals Polynuclear Cobalt Complexes as Catalysts for Light-Driven Water Oxidation: A Review of Recent Advances

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 602 ◽  
Author(s):  
Dmytro Nesterov ◽  
Oksana Nesterova
Keyword(s):  
Water Oxidation ◽  
Catalytic Efficiency ◽  
Cobalt Complexes ◽  
Platinum Group Metal ◽  
Experimental Methods ◽  
Cobalt Ions ◽  
Recent Advances ◽  
Wide Range ◽  
Artificial Photosynthetic ◽  
Molecular Catalysts

Photochemical water oxidation, as a half-reaction of water splitting, represents a great challenge towards the construction of artificial photosynthetic systems. Complexes of first-row transition metals have attracted great attention in the last decade due to their pronounced catalytic efficiency in water oxidation, comparable to that exhibited by classical platinum-group metal complexes. Cobalt, being an abundant and relatively cheap metal, has rich coordination chemistry allowing construction of a wide range of polynuclear architectures for the catalytic purposes. This review covers recent advances in application of cobalt complexes as (pre)catalysts for water oxidation in the model catalytic system comprising [Ru(bpy)3]2+ as a photosensitizer and S2O82− as a sacrificial electron acceptor. The catalytic parameters are summarized and discussed in view of the structures of the catalysts. Special attention is paid to the degradation of molecular catalysts under catalytic conditions and the experimental methods and techniques used to control their degradation as well as the leaching of cobalt ions.

scholarly journals Studies on the spin-state equilibria of cobalt ions in the system La1−x Na x Co1−x Nb x O3 (x⩽0·40)

1989 ◽  
Vol 12 (1) ◽  
pp. 53-56
Author(s):  
Om Parkash ◽  
N Chaturvedi ◽  
M Tiwari ◽  
Devendra Kumar
Keyword(s):  
Spin State ◽  
Cobalt Ions

Impact of nuclearity and topology on the single molecule magnet behaviour of hexaazatrinaphtylene-based cobalt complexes

2018 ◽  
Vol 47 (13) ◽  
pp. 4678-4684 ◽  
Author(s):  
Maykon A. Lemes ◽  
François Magnan ◽  
Bulat Gabidullin ◽  
Jaclyn Brusso
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Metal Complex ◽  
Single Molecule ◽  
Transition Metal Complex ◽  
Cobalt Complexes ◽  
Single Molecule Magnet ◽  
And Topology

A hexaazatrinaphtylene-based transition metal complex that exhibits single molecule magnet behaviour is reported herein. This study reveals the influence of both nuclearity and topology on the magnetic properties of hexaazatrinaphtylene-based complexes.

The effect of temperature and pressure on the spin state of cobalt ions in La1−xPrxCoO3 compounds

2020 ◽  
Vol 46 (6) ◽  
pp. 606-614
Author(s):  
A. S. Panfilov ◽  
A. A. Lyogenkaya ◽  
G. E. Grechnev ◽  
V. A. Pashchenko ◽  
L. O. Vasylechko ◽  
...  
Keyword(s):  
Spin State ◽  
Effect Of Temperature ◽  
Cobalt Ions ◽  
Temperature And Pressure

scholarly journals FIRST COORDINATION SPHERE AND SPIN-STATE IN SPIN CROSS-OVER IRON AND COBALT COMPLEXES

1986 ◽  
Vol 47 (C8) ◽  
pp. C8-563-C8-568 ◽  
Author(s):  
C. CARTIER ◽  
P. THUERY ◽  
M. VERDAGUER ◽  
J. ZAREMBOWITCH ◽  
A. MICHALOWICZ
Keyword(s):  
Coordination Sphere ◽  
Spin State ◽  
Cobalt Complexes

Spin state and magnetic interaction of cobalt ions in niobium-doped cobaltites

2006 ◽  
Vol 48 (4) ◽  
pp. 722-725 ◽  
Author(s):  
I. O. Troyanchuk ◽  
D. V. Karpinsky ◽  
R. Szymczak
Keyword(s):  
Spin State ◽  
Magnetic Interaction ◽  
Cobalt Ions ◽  
Niobium Doped

Exploration of spin state and exchange integral of cobalt ions in stoichiometric ZnCo2O4 spinel oxides

2016 ◽  
Vol 108 (14) ◽  
pp. 143102 ◽  
Author(s):  
Xiangli Che ◽  
Liping Li ◽  
Guangshe Li
Keyword(s):  
Spin State ◽  
Exchange Integral ◽  
Cobalt Ions ◽  
Spinel Oxides

Spin state of cobalt ions in NdCoO3

2006 ◽  
Vol 51 (1) ◽  
pp. 11-15 ◽  
Author(s):  
A. P. Sazonov ◽  
I. O. Troyanchuk ◽  
V. V. Sikolenko
Keyword(s):  
Spin State ◽  
Cobalt Ions

Spin State of Cobalt Ions and the Magnetic Properties of Heavily Ba-Substituted Cobaltites with Perovskite Structure

2018 ◽  
Vol 255 (10) ◽  
pp. 1800315
Author(s):  
Igor Troyanchuk ◽  
Maxim Bushinsky ◽  
Nina Tereshko ◽  
Clemens Ritter ◽  
Vadim Sikolenko ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spin State ◽  
Perovskite Structure ◽  
Cobalt Ions
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