scholarly journals N-Heterotricyclic cationic carbene ligands. Synthesis, reactivity and coordination chemistry

2018 ◽  
Vol 47 (15) ◽  
pp. 5196-5206 ◽  
Author(s):  
Javier Iglesias-Sigüenza ◽  
Cristina Izquierdo ◽  
Elena Díez ◽  
Rosario Fernández ◽  
José M. Lassaletta
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Carbene Ligands ◽  
Charge Delocalization ◽  
The Impact

Metal complexes based on cationic N-heterotricyclic carbenes have been synthesized and the impact of charge delocalization on their electronic properties has been analysed.

Fine-Tuning Electronic Properties of Luminescent Pt(II) Complexes via Vertex-Differentiated Coordination of Sterically Invariant Carborane-Based Ligands

2018 ◽  
Author(s):  
Kent O. Kirlikovali ◽  
Jonathan C. Axtell ◽  
Kierstyn Anderson ◽  
Peter I. Djurovich ◽  
Arnold L. Rheingold ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Fine Tuning ◽  
Fine Tune

We report the synthesis of two isomeric Pt(II) complexes ligated by doubly deprotonated 1,1′-bis(<i>o</i>-carborane) (<b>bc</b>). This work provides a potential route to fine-tune the electronic properties of luminescent metal complexes by virtue of vertex-differentiated coordination chemistry of carborane-based ligands.

scholarly journals Complexes of the tripodal phosphine ligands PhSi(XPPh2)3(X = CH2, O): synthesis, structure and catalytic activity in the hydroboration of CO2

2016 ◽  
Vol 45 (37) ◽  
pp. 14774-14788 ◽  
Author(s):  
Alicia Aloisi ◽  
Jean-Claude Berthet ◽  
Caroline Genre ◽  
Pierre Thuéry ◽  
Thibault Cantat
Keyword(s):  
Catalytic Activity ◽  
Coordination Chemistry ◽  
Electronic Properties ◽  
Phosphine Ligands ◽  
Phosphorus Ligands ◽  
The Impact

The coordination chemistry of Fe2+, Co2+and Cu+ions was explored with the ligands PhSi{CH2PPh2}3(1) and PhSi{OPPh2}3(2), so as to evaluate the impact of the electronic properties of the tripodal phosphorus ligands on the structure and reactivity of the corresponding complexes.

scholarly journals Ddpd as Expanded Terpyridine: Dramatic Effects of Symmetry and Electronic Properties in First Row Transition Metal Complexes

Inorganics ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 86 ◽  
Author(s):  
Christoph Förster ◽  
Matthias Dorn ◽  
Thomas Reuter ◽  
Sven Otto ◽  
Güllü Davarci ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Coordination Chemistry ◽  
Transition Metal ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Transition Metal Complexes ◽  
Redox Chemistry

The 2,2′:6′:2″-terpyridine ligand has literally shaped the coordination chemistry of transition metal complexes in a plethora of fields. Expansion of the ligand bite by amine functionalities between the pyridine units in the tridentate N,N’-dimethyl-N,N’-dipyridine-2-yl-pyridine-2,6-diamine ligand (ddpd) modifies the properties of corresponding transition metal complexes, comprising redox chemistry, molecular dynamics, magnetism and luminescence. The origins of these differences between ddpd and tpy complexes will be elucidated and comprehensively summarized with respect to first row transition metal complexes with d2–d10 electron configurations. Emerging applications of these ddpd complexes complementary to those of the well-known terpyridine ligand will be highlighted.

Fine-Tuning Electronic Properties of Luminescent Pt(II) Complexes via Vertex-Differentiated Coordination of Sterically Invariant Carborane-Based Ligands

2018 ◽  
Author(s):  
Kent O. Kirlikovali ◽  
Jonathan C. Axtell ◽  
Kierstyn Anderson ◽  
Peter I. Djurovich ◽  
Arnold L. Rheingold ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Fine Tuning ◽  
Fine Tune

We report the synthesis of two isomeric Pt(II) complexes ligated by doubly deprotonated 1,1′-bis(<i>o</i>-carborane) (<b>bc</b>). This work provides a potential route to fine-tune the electronic properties of luminescent metal complexes by virtue of vertex-differentiated coordination chemistry of carborane-based ligands.

scholarly journals Catalytic Antioxidant Activity of Bis-Aniline-Derived Diselenides as GPx Mimics

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4446
Author(s):  
Giancarlo V. Botteselle ◽  
Welman C. Elias ◽  
Luana Bettanin ◽  
Rômulo F. S. Canto ◽  
Drielly N. O. Salin ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Hydrogen Bond ◽  
Electronic Properties ◽  
Partial Charge ◽  
Amino Group ◽  
Diphenyl Diselenide ◽  
Charge Delocalization ◽  
Ipso Substitution ◽  
Efficient Route ◽  
Catalytic Performances

Herein, we describe a simple and efficient route to access aniline-derived diselenides and evaluate their antioxidant/GPx-mimetic properties. The diselenides were obtained in good yields via ipso-substitution/reduction from the readily available 2-nitroaromatic halides (Cl, Br, I). These diselenides present GPx-mimetic properties, showing better antioxidant activity than the standard GPx-mimetic compounds, ebselen and diphenyl diselenide. DFT analysis demonstrated that the electronic properties of the substituents determine the charge delocalization and the partial charge on selenium, which correlate with the catalytic performances. The amino group concurs in the stabilization of the selenolate intermediate through a hydrogen bond with the selenium.

Synthesis and Electronic Properties of Transition Metal Complexes Containing Sulfonamidoquinoline Ligands

Polyhedron ◽  
2021 ◽  
pp. 115269
Author(s):  
Matthew T. Gole ◽  
Patrick Pauls ◽  
Sage F. Hartlaub ◽  
Chip Nataro ◽  
Lauren M. Rossiter ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Electronic Properties ◽  
Transition Metal Complexes
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