Cationic nickel porphyrinoids with unexpected reactivity.

Chem Sci

Institute for Inorganic and Analytical Chemistry , Technical University Braunschweig, Hagenring 30 , 38106 Braunschweig , Germany . Email:

Published: January 2016

Cationic nickel(ii) complexes of two ring-contracted porphyrinoid ligands distantly related to the corrins were prepared by metal templated macrocyclisation. The compounds show reversible electron transfer processes and were found to be the first porphyrinoid-based catalysts for C-C cross-coupling.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5952870PMC
http://dx.doi.org/10.1039/c5sc03663aDOI Listing

Publication Analysis

Top Keywords

cationic nickel
4
nickel porphyrinoids
4
porphyrinoids unexpected
4
unexpected reactivity
4
reactivity cationic
4
cationic nickelii
4
nickelii complexes
4
complexes ring-contracted
4
ring-contracted porphyrinoid
4
porphyrinoid ligands
4

Similar Publications

Electrodialysis (ED) has already been applied to recover nickel in galvanizing processes, allowing nickel recovery and the production of a treated effluent with demineralized water quality. However, the growth in ED use is still limited by the production and commercialization of ion-selective membranes, currently limited to a few large companies. Therefore, this paper presents the development of homogeneous cationic and anionic membranes made from poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) for ED use.

View Article and Find Full Text PDF

Tunability in Heterobimetallic Complexes Featuring an Acyclic "Tiara" Polyether Motif.

Inorg Chem

December 2024

Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States.

Both cyclic "crown" and acyclic "tiara" polyethers have been recognized as useful for the binding of metal cations and enabling the assembly of multimetallic complexes. However, the properties of heterobimetallic complexes built upon acyclic polyethers have received less attention than they deserve. Here, the synthesis and characterization of a family of eight redox-active heterobimetallic complexes that pair a nickel center with secondary redox-inactive cations (K, Na, Li, Sr, Ca, Zn, La, and Lu) bound in acyclic polyether "tiara" moieties are reported.

View Article and Find Full Text PDF

The crystal structure of the title compound, hexa-aqua-nickel(II) dichloride-1,4,7,10,13,16-hexa-oxa-cyclo-octa-deca-ne-water (1/2/2), [Ni(HO)]Cl·2CHO·2HO, is reported. The asymmetric unit contains half of the Ni(OH) moiety with a formula of CHClNiO at 105 K and triclinic (1) symmetry. The [Ni(OH)] cation has close to ideal octa-hedral geometry with O-Ni-O bond angles that are within 3° of idealized values.

View Article and Find Full Text PDF

Triggering Oxygen Redox Cycles in Nickel Ferrite by Octahedral Geometry Engineering for Enhancing Oxygen Evolution.

Adv Sci (Weinh)

December 2024

Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices, Collaborative Innovation Center of Advanced Energy Materials, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.

Spinel-type nickel ferrite (NiFeO, x≤1) is a widely used electrocatalyst for the oxygen evolution reaction (OER). Due to the lower hybridization of metal-d and oxygen-p orbitals, the OER process on NiFeO follows the sluggish adsorbate evolution mechanism (AEM). Generally, activating the lattice oxygen to trigger the lattice-oxygen-mediated mechanism (LOM) can enhance the OER activity.

View Article and Find Full Text PDF

Synergistic effect of W(VI) and Ni(II) uptakes on an MgAl-layered double hydroxide.

Environ Res

December 2024

Jiangxi Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Ganzhou, 341000, PR China; School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, PR China. Electronic address:

The coadsorption of anionic and cationic pollutants on adsorbents holds considerable importance in the development of relevant removal technologies and the understanding of pollutant transport in complex environmental media. Herein, tungsten (W), an emerging contaminant, and nickel (Ni) were chosen as two differently charged inorganic pollutants to investigate their removal characteristics on a magnesium-aluminum layered double hydroxide (LDH) prepared via microwave radiation. In the single systems, the amount of adsorbed W on LDH was initially increased and then decreased with increasing initial W concentration.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!