Electrochemistry of nickel picket fence porphyrin. Electrogeneration and spectral characterization of nickel complexes in unusual oxidation states

A series of novel 1,9-diazodipyrrins (4) were readily synthesized by reacting aryldiazonium salts with 5-aryldipyrromethanes under both acidic and basic conditions. The zinc complex of 1,9-diphenylazodipyrrin (5aZn) was confirmed by X-ray crystallographic analysis, and 1,9-diazodipyrrins and their zinc and nickel complexes (5M) were characterized by 1H and 13C NMR, IR, UV–vis, and MS. All of the metal complexes absorb almost all colours of the rainbow; the absorption maximums are >650 nm and the half-band widths are over 100 nm. The fluorescence of the zinc complexes of 1,9-diphenylazodipyrrin (5aZn) and 1,9-di(2-iodophenylazo)dipyrrin (5cZn) were also explored.

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Electrochemical and Spectral Characterization of Iron Corroles in High and Low Oxidation States: First Structural Characterization of an Iron(IV) Tetrapyrrole π Cation Radical

Inorganic Chemistry ◽

10.1021/ic9509037 ◽

1996 ◽

Vol 35 (1) ◽

pp. 184-192 ◽

Cited By ~ 50

Author(s):

Eric Van Caemelbecke ◽

Stefan Will ◽

Marie Autret ◽

Victor A. Adamian ◽

Johann Lex ◽

...

Keyword(s):

Structural Characterization ◽

Cation Radical ◽

Spectral Characterization ◽

Oxidation States

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SPECTRAL CHARACTERIZATION OF REDOX-ACTIVE PRUSSIAN BLUE ON METALLATED PLASMA POLYMER SURFACE MODIFIED CARBON ELECTRODES USING PHOTOTHERMAL DETECTION

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1983645 ◽

1983 ◽

Vol 44 (C6) ◽

pp. C6-285-C6-290 ◽

Cited By ~ 3

Author(s):

J. W. Childers ◽

A. L. Crumbliss ◽

P. S. Lugg ◽

R. A. Palmer ◽

N. Morosoff ◽

...

Keyword(s):

Prussian Blue ◽

Polymer Surface ◽

Spectral Characterization ◽

Plasma Polymer ◽

Carbon Electrodes ◽

Redox Active ◽

Surface Modified

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Optimized Synthesis and Spectral Characterization of Some Hydrazones Based on 5-Nitroindazole with Pharmacological Potential

Ukrainian Journal of Physics ◽

10.15407/ujpe59.03.0313 ◽

2014 ◽

Vol 59 (3) ◽

pp. 313-318

Author(s):

C. Cheptea ◽

◽

L.M. Ivan ◽

D.O. Dorohoi ◽

V. Sunel ◽

...

Keyword(s):

Spectral Characterization ◽

Pharmacological Potential

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Catalytic Fluorination of Boron Compounds at a Bismuth Redox Platform

10.26434/chemrxiv.9729143 ◽

2019 ◽

Author(s):

Oriol Planas ◽

Feng Wang ◽

Markus Leutzsch ◽

Josep Cornella

Keyword(s):

Transition Metal ◽

Main Group ◽

Group Element ◽

Oxidation States ◽

Boron Compounds ◽

Main Text ◽

Main Group Element ◽

Rational Ligand Design ◽

Supplementary Material

The ability of bismuth to maneuver between different oxidation states in a catalytic redox cycle, mimicking the canonical organometallic steps associated to a transition metal, is an elusive and unprecedented approach in the field of homogeneous catalysis. Herein we present a catalytic protocol based on bismuth, a benign and sustainable main-group element, capable of performing every organometallic step in the context of oxidative fluorination of boron compounds; a territory reserved to transition metals. A rational ligand design featuring hypervalent coordination together with a mechanistic understanding of the fundamental steps, permitted a catalytic fluorination protocol based on a Bi(III)/Bi(V) redox couple, which represents a unique example where a main-group element is capable of outperforming its transition metal counterparts.<br>A main text and supplementary material have been attached as pdf files containing all the methodology, techniques and characterization of the compounds reported.<br>

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Synthesis and Spectral Characterization of Derivatives of Benzotriazole and Piperidine

Journal of Chemistry and Chemical Sciences ◽

10.29055/jccs/583 ◽

2018 ◽

Vol 8 (2) ◽

pp. 278-287

Author(s):

Selvarathy Grace P ◽

Ravindran Durainayagam B ◽

Pon Matheswari P.

Keyword(s):

Spectral Characterization ◽

Derivatives Of

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Synthesis and Spectral Characterization of New S-Alkylated 1,2,4-Triazoles as Potential Biological Agents

Revista de Chimie ◽

10.37358/rc.17.10.5900 ◽

2017 ◽

Vol 68 (10) ◽

pp. 2436-2439

Author(s):

Stefania Felicia Barbuceanu ◽

Laura Ileana Socea ◽

Constantin Draghici ◽

Elena Mihaela Pahontu ◽

Theodora Venera Apostol ◽

...

Keyword(s):

Mass Spectrometry ◽

Spectral Data ◽

1H Nmr ◽

Elemental Analysis ◽

13C Nmr ◽

Ethyl Bromide ◽

Spectral Characterization ◽

Basic Medium ◽

Phenacyl Bromide

In the work we presented the behavior of 5-(4-(4-X-phenylsulfonyl)phenyl)-4-(n-propyl)-2H-1,2,4-triazole-3(4H)-thiones (X= Cl or Br) with some alkylation agents. Thus, new S-alkylated 1,2,4-triazole derivatives were synthesized by reaction of the corresponding 1,2,4-triazole-3-thione derivatives with different �-halogenated compounds (ethyl bromide, ethyl chloroacetate or phenacyl bromide), in basic medium. The structures of synthesized compounds were elucidated by spectral data (1H-NMR, 13C-NMR, mass spectrometry) and elemental analysis.

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