Unusual monodentate binding of a C-NONOate ligand in the nitrosyl complex (OEP)Ru(NO)(η1-ONN(t-Bu)O)

Nan Xu; Alexander Bevak; Joseph Roesch; Bernadette Armstrong; Erwin Abucayon; Zachary Bell; Douglas R. Powell; George B. Richter-Addo

doi:10.1016/j.ica.2020.119567

Unusual monodentate binding of a C-NONOate ligand in the nitrosyl complex (OEP)Ru(NO)(η¹-ONN(t-Bu)O)

Nan Xu, Alexander Bevak, Joseph Roesch, Bernadette Armstrong, Erwin Abucayon, Zachary Bell, Douglas R. Powell, George B. Richter-Addo

Division of Mathematics & Natural Sciences (Altoona)

Research output: Contribution to journal › Article › peer-review

Abstract

The recent discovery of the C-NONOate moiety ([X{N₂O₂}]⁻; diazeniumdiolate) as a new class of siderophore functional group necessitates further examination of its coordination chemistry. The bidentate η²-O,O binding mode of the C-NONOate moiety is well-established. We have synthesized and characterized, by X-ray crystallography, the first monodentate η¹-O binding mode of a C-NONOate group to any metal, namely that of (OEP)Ru(NO)(η¹-ONN(t-Bu)O). The compound exhibits an irreversible first oxidation in CH₂Cl₂ at a Pt electrode. Protonation with triflic acid results in the formation of N₂O, presumably from the direct protonation of the C-NONOate ligand.

Original language	English (US)
Article number	119567
Journal	Inorganica Chimica Acta
Volume	507
DOIs	https://doi.org/10.1016/j.ica.2020.119567
State	Published - Jul 1 2020

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.ica.2020.119567

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title = "Unusual monodentate binding of a C-NONOate ligand in the nitrosyl complex (OEP)Ru(NO)(η1-ONN(t-Bu)O)",

abstract = "The recent discovery of the C-NONOate moiety ([X{N2O2}]−; diazeniumdiolate) as a new class of siderophore functional group necessitates further examination of its coordination chemistry. The bidentate η2-O,O binding mode of the C-NONOate moiety is well-established. We have synthesized and characterized, by X-ray crystallography, the first monodentate η1-O binding mode of a C-NONOate group to any metal, namely that of (OEP)Ru(NO)(η1-ONN(t-Bu)O). The compound exhibits an irreversible first oxidation in CH2Cl2 at a Pt electrode. Protonation with triflic acid results in the formation of N2O, presumably from the direct protonation of the C-NONOate ligand.",

author = "Nan Xu and Alexander Bevak and Joseph Roesch and Bernadette Armstrong and Erwin Abucayon and Zachary Bell and Powell, {Douglas R.} and Richter-Addo, {George B.}",

note = "Funding Information: We are grateful to Penn State University Altoona for support (to NX), and to the National Science Foundation ( CHE-1900181 and CHE-1566509 to GBRA) for funding for this research. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = jul,

day = "1",

doi = "10.1016/j.ica.2020.119567",

language = "English (US)",

volume = "507",

journal = "Inorganica Chimica Acta",

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T1 - Unusual monodentate binding of a C-NONOate ligand in the nitrosyl complex (OEP)Ru(NO)(η1-ONN(t-Bu)O)

AU - Xu, Nan

AU - Bevak, Alexander

AU - Roesch, Joseph

AU - Armstrong, Bernadette

AU - Abucayon, Erwin

AU - Bell, Zachary

AU - Powell, Douglas R.

AU - Richter-Addo, George B.

N1 - Funding Information: We are grateful to Penn State University Altoona for support (to NX), and to the National Science Foundation ( CHE-1900181 and CHE-1566509 to GBRA) for funding for this research. Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The recent discovery of the C-NONOate moiety ([X{N2O2}]−; diazeniumdiolate) as a new class of siderophore functional group necessitates further examination of its coordination chemistry. The bidentate η2-O,O binding mode of the C-NONOate moiety is well-established. We have synthesized and characterized, by X-ray crystallography, the first monodentate η1-O binding mode of a C-NONOate group to any metal, namely that of (OEP)Ru(NO)(η1-ONN(t-Bu)O). The compound exhibits an irreversible first oxidation in CH2Cl2 at a Pt electrode. Protonation with triflic acid results in the formation of N2O, presumably from the direct protonation of the C-NONOate ligand.

AB - The recent discovery of the C-NONOate moiety ([X{N2O2}]−; diazeniumdiolate) as a new class of siderophore functional group necessitates further examination of its coordination chemistry. The bidentate η2-O,O binding mode of the C-NONOate moiety is well-established. We have synthesized and characterized, by X-ray crystallography, the first monodentate η1-O binding mode of a C-NONOate group to any metal, namely that of (OEP)Ru(NO)(η1-ONN(t-Bu)O). The compound exhibits an irreversible first oxidation in CH2Cl2 at a Pt electrode. Protonation with triflic acid results in the formation of N2O, presumably from the direct protonation of the C-NONOate ligand.

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SN - 0020-1693

VL - 507

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

M1 - 119567

ER -

Unusual monodentate binding of a C-NONOate ligand in the nitrosyl complex (OEP)Ru(NO)(η¹-ONN(t-Bu)O)

Abstract

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