Photochemistry of electron donor-acceptor complexes of the bis(fulvalene) dicobalt mono- and dications

S. F. Clark; R. J. Watts; D. L. Dubois; J. s. Connolly; J. C. Smart

doi:10.1016/0010-8545(85)80055-2

Photochemistry of electron donor-acceptor complexes of the bis(fulvalene) dicobalt mono- and dications

S. F. Clark, R. J. Watts, D. L. Dubois, J. s. Connolly, J. C. Smart

Pacific Northwest National Laboratory

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

14 Citations (Scopus)

Abstract

Addition of carbon tetrachloride or chloroform to acetonitrile solutions of the bis(fulvalene)dicobalt monocation results in the appearance of new absorption features which are attributed to formation of electron donor-acceptor complexes. The association constants of these complexes aer 2.36 /mole fraction (carbon tetrachloride) and 2.74 /mole fraction (chloroform). Excitation in the absorption bands of the donor-acceptor complexes results in oxidation of the monocation to the dication with high quantum yields. A donor-acceptor complex is also formed when sodium tetraphenylborate is added to acetonitrile solutions of the bis(fulvalene)dicobalt dication. Spectroscopic determination of the association constant of the dication with tetraphenylborate yields a value of 26.3 /mole fraction. Excitation of the absorption bands of the ion-pair results in high quantum yields for formation of the bis(fulvalene) dicobalt monocation. Biphenyl is found in photolyzed solutions as a byproduct of the oxidation of the tetraphenylborate anion.

Original language	English
Pages (from-to)	273-292
Number of pages	20
Journal	Coordination Chemistry Reviews
Volume	64
Issue number	C
DOIs	https://doi.org/10.1016/0010-8545(85)80055-2
Publication status	Published - May 1985

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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@article{8f84738bd61745698bcd7a242c85c701,

title = "Photochemistry of electron donor-acceptor complexes of the bis(fulvalene) dicobalt mono- and dications",

abstract = "Addition of carbon tetrachloride or chloroform to acetonitrile solutions of the bis(fulvalene)dicobalt monocation results in the appearance of new absorption features which are attributed to formation of electron donor-acceptor complexes. The association constants of these complexes aer 2.36 /mole fraction (carbon tetrachloride) and 2.74 /mole fraction (chloroform). Excitation in the absorption bands of the donor-acceptor complexes results in oxidation of the monocation to the dication with high quantum yields. A donor-acceptor complex is also formed when sodium tetraphenylborate is added to acetonitrile solutions of the bis(fulvalene)dicobalt dication. Spectroscopic determination of the association constant of the dication with tetraphenylborate yields a value of 26.3 /mole fraction. Excitation of the absorption bands of the ion-pair results in high quantum yields for formation of the bis(fulvalene) dicobalt monocation. Biphenyl is found in photolyzed solutions as a byproduct of the oxidation of the tetraphenylborate anion.",

author = "Clark, {S. F.} and Watts, {R. J.} and Dubois, {D. L.} and Connolly, {J. s.} and Smart, {J. C.}",

note = "Funding Information: Acknowledgement. This work was supported by the Office of Basic Energy Sciences of the Department of Energy, Project DE-AT03-78ER70277 (RJW and SFC).",

year = "1985",

month = may,

doi = "10.1016/0010-8545(85)80055-2",

language = "English",

volume = "64",

pages = "273--292",

journal = "Coordination Chemistry Reviews",

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T1 - Photochemistry of electron donor-acceptor complexes of the bis(fulvalene) dicobalt mono- and dications

AU - Clark, S. F.

AU - Watts, R. J.

AU - Dubois, D. L.

AU - Connolly, J. s.

AU - Smart, J. C.

N1 - Funding Information: Acknowledgement. This work was supported by the Office of Basic Energy Sciences of the Department of Energy, Project DE-AT03-78ER70277 (RJW and SFC).

PY - 1985/5

Y1 - 1985/5

N2 - Addition of carbon tetrachloride or chloroform to acetonitrile solutions of the bis(fulvalene)dicobalt monocation results in the appearance of new absorption features which are attributed to formation of electron donor-acceptor complexes. The association constants of these complexes aer 2.36 /mole fraction (carbon tetrachloride) and 2.74 /mole fraction (chloroform). Excitation in the absorption bands of the donor-acceptor complexes results in oxidation of the monocation to the dication with high quantum yields. A donor-acceptor complex is also formed when sodium tetraphenylborate is added to acetonitrile solutions of the bis(fulvalene)dicobalt dication. Spectroscopic determination of the association constant of the dication with tetraphenylborate yields a value of 26.3 /mole fraction. Excitation of the absorption bands of the ion-pair results in high quantum yields for formation of the bis(fulvalene) dicobalt monocation. Biphenyl is found in photolyzed solutions as a byproduct of the oxidation of the tetraphenylborate anion.

AB - Addition of carbon tetrachloride or chloroform to acetonitrile solutions of the bis(fulvalene)dicobalt monocation results in the appearance of new absorption features which are attributed to formation of electron donor-acceptor complexes. The association constants of these complexes aer 2.36 /mole fraction (carbon tetrachloride) and 2.74 /mole fraction (chloroform). Excitation in the absorption bands of the donor-acceptor complexes results in oxidation of the monocation to the dication with high quantum yields. A donor-acceptor complex is also formed when sodium tetraphenylborate is added to acetonitrile solutions of the bis(fulvalene)dicobalt dication. Spectroscopic determination of the association constant of the dication with tetraphenylborate yields a value of 26.3 /mole fraction. Excitation of the absorption bands of the ion-pair results in high quantum yields for formation of the bis(fulvalene) dicobalt monocation. Biphenyl is found in photolyzed solutions as a byproduct of the oxidation of the tetraphenylborate anion.

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