Synthesis and Characterization of Tris(tetraethylammonium) Pentacyanoperoxynitritocobaltate(III)

Wick, Patrick K.; Kissner, Reinhard; Koppenol, Willem H.

doi:10.1002/(sici)1522-2675(20000412)83:4<748::aid-hlca748>3.0.co;2-3

Cited by 39 publications

(32 citation statements)

References 19 publications

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“…410 m −1 cm −1 ; Figure ). The intense high‐energy feature near 310 nm has been has been reported for alkali and ammonium salts and in metal coordination complexes of peroxynitrite …”

Section: Methodsmentioning

confidence: 77%

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Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

et al. 2019

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We report the formation of a new copper peroxynitrite (PN) complex [CuII(TMG3tren)(κ1‐OONO)]+ (PN1) from the reaction of [CuII(TMG3tren)(O2.−)]+ (1) with NO.(g) at −125 °C. The first resonance Raman spectroscopic characterization of such a metal‐bound PN moiety supports a cis κ1‐(−OONO) geometry. PN1 transforms thermally into an isomeric form (PN2) with κ2‐O,O′‐(−OONO) coordination, which undergoes O−O bond homolysis to generate a putative cupryl (LCuII−O.) intermediate and NO2.. These transient species do not recombine to give a nitrato (NO3−) product but instead proceed to effect oxidative chemistry and formation of a CuII–nitrito (NO2−) complex (2).

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“…410 m −1 cm −1 ; Figure ). The intense high‐energy feature near 310 nm has been has been reported for alkali and ammonium salts and in metal coordination complexes of peroxynitrite …”

Section: Methodsmentioning

confidence: 77%

“…While progress has been made to implicate metal ions in the decay of peroxynitrite, a discrete peroxynitrite coordination complex has rarely been observed . Examples of stable peroxynitrite complexes are scarce, and those containing vibrational (i.e., IR spectroscopic) information about the peroxynitrite ligand even more so …”

Section: Methodsmentioning

confidence: 99%

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

et al. 2019

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“…The Cu(II)–peroxynitrite complex then undergoes thermal transformation to a Cu(II)–nitrite complex . Other non-porphyrin peroxynitrito metal complexes have been investigated by Koppenol and coworkers, including pentacyanoperoxynitritocobaltate(III). , …”

Section: Nitric Oxide In Mammalian Signaling and Immune Defensementioning

confidence: 99%

The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity

et al. 2021

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Nitric oxide (NO) is an important signaling molecule that is involved in a wide range of physiological and pathological events in biology. Metal coordination chemistry, especially with iron, is at the heart of many biological transformations involving NO. A series of heme proteins, nitric oxide synthases (NOS), soluble guanylate cyclase (sGC), and nitrophorins, are responsible for the biosynthesis, sensing, and transport of NO. Alternatively, NO can be generated from nitrite by heme- and copper-containing nitrite reductases (NIRs). The NO-bearing small molecules such as nitrosothiols and dinitrosyl iron complexes (DNICs) can serve as an alternative vehicle for NO storage and transport. Once NO is formed, the rich reaction chemistry of NO leads to a wide variety of biological activities including reduction of NO by heme or non-heme iron-containing NO reductases and protein post-translational modifications by DNICs. Much of our understanding of the reactivity of metal sites in biology with NO and the mechanisms of these transformations has come from the elucidation of the geometric and electronic structures and chemical reactivity of synthetic model systems, in synergy with biochemical and biophysical studies on the relevant proteins themselves. This review focuses on recent advancements from studies on proteins and model complexes that not only have improved our understanding of the biological roles of NO but also have provided foundations for biomedical research and for bio-inspired catalyst design in energy science.

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“…Bioinspired chemical systems have shown that coordination complexes with a number of different metal ions, along with sources of NO (g) and O 2(g) , can lead to the generation of metal-bound PN species. Koppenol and co-workers reported the first isolated PN complex of cobalt(III), from reaction of a pentacyano-cobalt(III) superoxide compound reacting with NO (g) to give [Co III (CN) 5 ( − OONO)] 3– (Scheme ). Kurtikyan and co-workers have more recently published on porphyrinate Co III –PN complexes, thoroughly characterized by infrared (IR) spectroscopy and density functional theory (DFT) calculations.…”

Section: Introductionmentioning

confidence: 99%

A Peroxynitrite Dicopper Complex: Formation via Cu–NO and Cu–O₂ Intermediates and Reactivity via O–O Cleavage Chemistry

et al. 2016

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Synthesis and Characterization of Tris(tetraethylammonium) Pentacyanoperoxynitritocobaltate(III)

Cited by 39 publications

References 19 publications

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity

A Peroxynitrite Dicopper Complex: Formation via Cu–NO and Cu–O₂ Intermediates and Reactivity via O–O Cleavage Chemistry

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Synthesis and Characterization of Tris(tetraethylammonium) Pentacyanoperoxynitritocobaltate(III)

Cited by 39 publications

References 19 publications

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O2 and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O2 and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

The Biologically Relevant Coordination Chemistry of Iron and Nitric Oxide: Electronic Structure and Reactivity

A Peroxynitrite Dicopper Complex: Formation via Cu–NO and Cu–O2 Intermediates and Reactivity via O–O Cleavage Chemistry

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Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

Direct Resonance Raman Characterization of a Peroxynitrito Copper Complex Generated from O₂ and NO and Mechanistic Insights into Metal‐Mediated Peroxynitrite Decomposition

A Peroxynitrite Dicopper Complex: Formation via Cu–NO and Cu–O₂ Intermediates and Reactivity via O–O Cleavage Chemistry