| Autor: |
Sun C; Department of Chemistry, Furman University, Greenville, South Carolina 29613, USA., Thakker PU, Khulordava L, Tobben DJ, Greenstein SM, Grisenti DL, Kantor AG, Wagenknecht PS |
| Jazyk: |
angličtina |
| Zdroj: |
Inorganic chemistry [Inorg Chem] 2012 Oct 15; Vol. 51 (20), pp. 10477-9. Date of Electronic Publication: 2012 Sep 26. |
| DOI: |
10.1021/ic3016113 |
| Abstrakt: |
The trifluoropropynyl ligand -C≡CCF(3) was studied as a possible surrogate for the cyano ligand. Complexes of the type trans-[M(cyclam)(C≡CCF(3))(2)]OTf (where M = Cr(3+), Co(3+), and Rh(3+); OTf = trifluoromethanesulfonate) were prepared and then characterized by electronic spectroscopy and by cyclic voltammetry for the Co(3+) complex. The UV-vis spectra for all three bear a remarkable similarity to that of the trans-M(cyclam)(CN)(2)(+) cations. The trifluoropropynyl complex of Co(3+) shows electrochemical behavior nearly identical with that of its dicyano analogue. Metal-centered phosphorescence from the Rh(III) complex in room-temperature aqueous solution has a quantum yield of 0.12 and a lifetime of 73 μs, nearly 10 times higher than those of its dicyano analogue. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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