TY - JOUR
T1 - Metal carbonyl derivatives of sulfur-containing quinones and hydroquinones
T2 - Synthesis, structures, and electrochemical properties
AU - Adams, Richard D.
AU - Miao, Shaobin
PY - 2004/12/27
Y1 - 2004/12/27
N2 - The reaction of CpMoMn(μ-S2)(CO)5, 1, with 1,4-benzoquinone in the presence of irradiation with visible light yielded the quinonedithiolato complex CpMoMn(CO)5(μ-S2C 6H2O2), 2. The new complex CpMoMn(CO) 5(μ-S2C6Cl2O2) (4) was synthesized similarly from 1 and 2,3-dichloro-1,4-benzoquinone. Compounds 2 and 4 were reduced with hydrogen to yield the hydroquinone complexes CpMoMn(CO)5[μ-S2C6H2(OH) 2], 3, and CpMoMn(CO)5[μ-S2C 6Cl2(OH)2], 5. UV-vis irradiation of solutions of Fe2(CO)6(μ-S2) and 1,4-benzoquinone yielded the hydroquinone complex Fe2(CO)6[μ-S 2C6H2(OH)2], 6. Compound 6 was oxidized to the quinone complex Fe2(CO)6(μ-S 2C6H2O2), 7, by using 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. Substitution of the CO ligands on 6 by PPh3 yielded the derivatives Fe2(CO) 5(PPh3)[μ-S2C6H 2(OH)2], 8, and Fe2(CO)4(PPh 3)2[μ-S2C6H2(OH) 2], 9. The electrochemical properties of 3, 5, 6, 8, and 9 were measured by cyclic voltammetry. The molecular structure of each of the new compounds 2-9 was established by single-crystal X-ray diffraction analyses.
AB - The reaction of CpMoMn(μ-S2)(CO)5, 1, with 1,4-benzoquinone in the presence of irradiation with visible light yielded the quinonedithiolato complex CpMoMn(CO)5(μ-S2C 6H2O2), 2. The new complex CpMoMn(CO) 5(μ-S2C6Cl2O2) (4) was synthesized similarly from 1 and 2,3-dichloro-1,4-benzoquinone. Compounds 2 and 4 were reduced with hydrogen to yield the hydroquinone complexes CpMoMn(CO)5[μ-S2C6H2(OH) 2], 3, and CpMoMn(CO)5[μ-S2C 6Cl2(OH)2], 5. UV-vis irradiation of solutions of Fe2(CO)6(μ-S2) and 1,4-benzoquinone yielded the hydroquinone complex Fe2(CO)6[μ-S 2C6H2(OH)2], 6. Compound 6 was oxidized to the quinone complex Fe2(CO)6(μ-S 2C6H2O2), 7, by using 2,3-dichloro-5,6-dicyano-1,4-benzoquinone. Substitution of the CO ligands on 6 by PPh3 yielded the derivatives Fe2(CO) 5(PPh3)[μ-S2C6H 2(OH)2], 8, and Fe2(CO)4(PPh 3)2[μ-S2C6H2(OH) 2], 9. The electrochemical properties of 3, 5, 6, 8, and 9 were measured by cyclic voltammetry. The molecular structure of each of the new compounds 2-9 was established by single-crystal X-ray diffraction analyses.
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U2 - 10.1021/ic048880w
DO - 10.1021/ic048880w
M3 - Article
C2 - 15606190
AN - SCOPUS:11144261921
SN - 0020-1669
VL - 43
SP - 8414
EP - 8426
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 26
ER -