Electrochemistry of CU(i) bipyridyl complexes with alkene, alkyne, and nitrile ligands. Implications for plant hormone action of ethylene

Peter Kovacic; Patrick F. Kiser; Daniel L. Reger; Mark F. Huff; Benjamin A. Feinberg

doi:10.3109/10715769109049134

Electrochemistry of CU(i) bipyridyl complexes with alkene, alkyne, and nitrile ligands. Implications for plant hormone action of ethylene

Peter Kovacic^*, Patrick F. Kiser, Daniel L. Reger, Mark F. Huff, Benjamin A. Feinberg

^*Corresponding author for this work

Biomedical Engineering

Research output: Contribution to journal › Article

12 Scopus citations

Abstract

The redox behavior was evaluated for several (BIPY)Cu(I) complexes (BIPY = 2,2'bipyridyl) with unsatur ated ligands by means of cyclic voltammetry in CH₂Cl₂ at reduced temperatures (- 78°-;23° 0°C). The complexes studied are [Cu(I)(BIPY)(C₂H₂)]PF₆, [Cu(I)(BIPY)(3-hexyne)]PF₆, [Cu(I)(BIPY)(DEAD)]PF₆, {[CU(I)(BIPY)]₂DEAD}[PF₆]₂ (DEAD = diethyl acetylene dicarboxylate) and [Cu(I)(BIPY)(CH₃CN)]PF₆. The oxidations are quasi-reversible at - 78°C for scan rates of 20 to 200mV/sec. The reductions were irreversible on the CV time scale. Evidence is presented in support of a role for an electron transfer mechanism in the case of the plant hormone ethylene. Related literature data are also discussed.

Original language	English (US)
Pages (from-to)	143-149
Number of pages	7
Journal	Free Radical Research
Volume	15
Issue number	3
DOIs	https://doi.org/10.3109/10715769109049134
State	Published - Jan 1 1991

Keywords

Cu(1) unsaturated complexes
Electrochemistry
Electron transfer
Ethylene plant hormone mechanism

ASJC Scopus subject areas

Biochemistry

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Kovacic, P., Kiser, P. F., Reger, D. L., Huff, M. F., & Feinberg, B. A. (1991). Electrochemistry of CU(i) bipyridyl complexes with alkene, alkyne, and nitrile ligands. Implications for plant hormone action of ethylene. Free Radical Research, 15(3), 143-149. https://doi.org/10.3109/10715769109049134

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title = "Electrochemistry of CU(i) bipyridyl complexes with alkene, alkyne, and nitrile ligands. Implications for plant hormone action of ethylene",

abstract = "The redox behavior was evaluated for several (BIPY)Cu(I) complexes (BIPY = 2,2'bipyridyl) with unsatur ated ligands by means of cyclic voltammetry in CH2Cl2 at reduced temperatures (- 78°-;23° 0°C). The complexes studied are [Cu(I)(BIPY)(C2H2)]PF6, [Cu(I)(BIPY)(3-hexyne)]PF6, [Cu(I)(BIPY)(DEAD)]PF6, {[CU(I)(BIPY)]2DEAD}[PF6]2 (DEAD = diethyl acetylene dicarboxylate) and [Cu(I)(BIPY)(CH3CN)]PF6. The oxidations are quasi-reversible at - 78°C for scan rates of 20 to 200mV/sec. The reductions were irreversible on the CV time scale. Evidence is presented in support of a role for an electron transfer mechanism in the case of the plant hormone ethylene. Related literature data are also discussed.",

keywords = "Cu(1) unsaturated complexes, Electrochemistry, Electron transfer, Ethylene plant hormone mechanism",

author = "Peter Kovacic and Kiser, {Patrick F.} and Reger, {Daniel L.} and Huff, {Mark F.} and Feinberg, {Benjamin A.}",

year = "1991",

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AU - Kovacic, Peter

AU - Kiser, Patrick F.

AU - Reger, Daniel L.

AU - Huff, Mark F.

AU - Feinberg, Benjamin A.

PY - 1991/1/1

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N2 - The redox behavior was evaluated for several (BIPY)Cu(I) complexes (BIPY = 2,2'bipyridyl) with unsatur ated ligands by means of cyclic voltammetry in CH2Cl2 at reduced temperatures (- 78°-;23° 0°C). The complexes studied are [Cu(I)(BIPY)(C2H2)]PF6, [Cu(I)(BIPY)(3-hexyne)]PF6, [Cu(I)(BIPY)(DEAD)]PF6, {[CU(I)(BIPY)]2DEAD}[PF6]2 (DEAD = diethyl acetylene dicarboxylate) and [Cu(I)(BIPY)(CH3CN)]PF6. The oxidations are quasi-reversible at - 78°C for scan rates of 20 to 200mV/sec. The reductions were irreversible on the CV time scale. Evidence is presented in support of a role for an electron transfer mechanism in the case of the plant hormone ethylene. Related literature data are also discussed.

AB - The redox behavior was evaluated for several (BIPY)Cu(I) complexes (BIPY = 2,2'bipyridyl) with unsatur ated ligands by means of cyclic voltammetry in CH2Cl2 at reduced temperatures (- 78°-;23° 0°C). The complexes studied are [Cu(I)(BIPY)(C2H2)]PF6, [Cu(I)(BIPY)(3-hexyne)]PF6, [Cu(I)(BIPY)(DEAD)]PF6, {[CU(I)(BIPY)]2DEAD}[PF6]2 (DEAD = diethyl acetylene dicarboxylate) and [Cu(I)(BIPY)(CH3CN)]PF6. The oxidations are quasi-reversible at - 78°C for scan rates of 20 to 200mV/sec. The reductions were irreversible on the CV time scale. Evidence is presented in support of a role for an electron transfer mechanism in the case of the plant hormone ethylene. Related literature data are also discussed.

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KW - Electrochemistry

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KW - Ethylene plant hormone mechanism

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