www.eurjic.org
FULL PAPER
Quantum Yield Measurements: Quantum yields were determined by
actinometry studies using a ferric oxalate solution. The intensity of
the UV light (λirr = 365 nm) was determined with a ferrioxalate
actinometer (0.006 m solution of potassium ferrioxalate in 0.1 n
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[
39–43]
H
2
SO
4
).
Quantum yields (φ) of NO photorelease for com-
[
plexes 1a and 2a were determined by the decrease in their absorp-
tion bands near 282 and 321 nm, respectively, when irradiated with
3
65 nm light and were calculated by following the procedure re-
[
42]
ported earlier.
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[
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and im-
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plemented in the Gaussian 03 program package.[
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The elec-
2
tronic structure of the complex was determined using the
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[
35]
LANL2DZ basis set for the ruthenium center and the 6-31G(d)
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[
34,35]
basis set
for other nonmetal atoms. The X-ray coordinates of
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1
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