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 | |
| Publication status | Published - 1985 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Photochemistry of electron donor-acceptor complexes of the bis(fulvalene) dicobalt mono- and dications. / Clark, S. F.; Watts, R. J.; DuBois, Daniel L; Connolly, J. s.; Smart, J. C.
In: Coordination Chemistry Reviews, Vol. 64, No. C, 1985, p. 273-292.Research output: Contribution to journal › Article
}
TY - JOUR
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, Daniel L
AU - Connolly, J. s.
AU - Smart, J. C.
PY - 1985
Y1 - 1985
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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U2 - 10.1016/0010-8545(85)80055-2
DO - 10.1016/0010-8545(85)80055-2
M3 - Article
VL - 64
SP - 273
EP - 292
JO - Coordination Chemistry Reviews
JF - Coordination Chemistry Reviews
SN - 0010-8545
IS - C
ER -