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In Pursuit of Panchromatic Absorption in Metal Coordination Complexes: Experimental Delineation of the HOMO Inversion Model Using Pseudo-Octahedral Complexes of Diarylamido Ligands
(American Chemical Society, 2020-11-23)
The ability of a compound to broadly absorb light across the incident solar spectrum is an important design target in the development of molecular photosensitizers. The ‘HOMO inversion’ model predicts that for [(tpy)2Fe]2+ ...
Zn-Templated synthesis of substituted (2,6-diimine)pyridine proligands and evaluation of their iron complexes as anolytes for flow battery applications
(Royal Society of Chemistry, 2020-04-13)
Pseudo-octahedral iron complexes supported by tridentate N^N^N-binding, redox ‘non-innocent’ diiminepyridine (DIP) ligands exhibit multiple reversible ligand-based reductions that suggest the potential application of these ...
Diiminepyridine-Supported Phosphorus(I) and Phosphorus(III) Complexes: Synthesis, Characterization, and Electrochemistry
(Wiley VCH, 2020-06-08)
The synthesis of phosphorus coordination complexes of redox non-innocent diiminepyridine (DIP) ligands with the pnictogen in both the P(I) and P(III) oxidation states is presented. Electrochemical characterization indicates ...
Redox non-innocent bis(2,6-diimine-pyridine) ligand–iron complexes as anolytes for flow battery applications
(Royal Society of Chemistry, 2017-11-13)
Diiminepyridines are a well-known class of “non-innocent” ligands that confer additional redox activity to coordination complexes beyond metal-centred oxidation/reduction. Here, we demonstrate that metal coordination ...
Luminescent Platinum(II) Complexes of N^N–^N Amido Ligands with Benzannulated N-Heterocyclic Donor Arms: Quinolines Offer Unexpectedly Deeper Red Phosphorescence than Phenanthridines
(American Chemical Society, 2019-10-22)
A platform for investigating the impact of π-extension in benzannulated, anionic pincer-type N^N–^N-coordinating amido ligands and their Pt(II) complexes is presented. Based on bis(8-quinolinyl)amine, symmetric and asymmetric ...
Deep-Red Luminescence from Platinum(II) Complexes of N^N–^N-Amido Ligands with Benzannulated N-Heterocyclic Donor Arms
(American Chemical Society, 2020-08-18)
A synthetic methodology for accessing narrow-band, deep-red phosphorescence from mononuclear Pt(II) complexes is presented. These charge-neutral complexes have the general structure (N^N–^N)PtCl, in which the Pt(II) centers ...
Site-Selective Benzannulation of N-Heterocycles in Bidentate Ligands Leads to Blue-Shifted Emission from [(P^N)Cu]2(μ-X)2 Dimers
(American Chemical Society, 2018-04-12)
Benzannulated bidentate pyridine/phosphine (P^N) ligands bearing quinoline or phenanthridine (3,4-benzoquinoline) units have been prepared, along with their halide-bridged, dimeric Cu(I) complexes of the form [(P^N)Cu]2(μ-X)2. ...
Exploiting synergy between ligand design and counterion interactions to boost room temperature phosphorescence from Cu(i) compounds
(Royal Society of Chemistry, 2019-01-16)
The structural and photophysical properties of three sets of luminescent copper complexes of the form [(P^N)2Cu]X are presented. Here, P^N represents a bidentate ligand based on phenanthridine (3,4-benzoquinoline) incorporating ...
Monomeric zinc(II) amide complexes supported by bidentate, benzannulated phenanthridine amido ligands
(Elsevier, 2019-03-15)
The first examples of homoleptic zinc amides (1-Zn and 2-Zn) supported by chelating, benzannulated 4-amidophenanthridine ligands (L1, L2) are reported. The organometallic compounds were characterized fully both in solution ...
Synthesis, Characterization and Coordination Chemistry of a Phenanthridine-Containing N-Heterocyclic Carbene Ligand
(Canadian Science Publishing, 2020-11-12)
An N-heterocyclic carbene ligand precursor bearing a π-extended phenanthridine (3,4-benzoquinoline) unit is presented. The proligand was isolated as the imidazolium salt of chloride (1•HCl), bromide (1•HBr), or hexafluorophosphate ...