597-35-3Relevant articles and documents
Goheen,Bennett
, p. 1331 (1961)
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Bonner,Drisko
, p. 3699 (1951)
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CHEMISTRY OF SINGLET OXYGEN - 38. TEMPERATURE EFFECT ON THE PHOTOOXIDATION OF SULFIDES.
Gu,Foote
, p. 6060 - 6063 (1982)
The reactivity of diethyl sulfide with singlet oxygen has been determined at room temperature (23-24 degree C) and at minus 78 degree C in various solvents. Although the consumption of sulfide is much faster at minus 78 degree C, the rate of removal of singlet oxygen by sulfide is relatively independent of solvent and temperature. A comparison of the rate of product formation with the rate of singlet oxygen removal shows that over 97% quenching is observed in aprotic and about 10% in protic solvents at room temperature. At minus 78 degree C, the quenching process is suppressed in both protic and aprotic solvents. Surprisingly, 2,5-diphenylfuran showed a similar but much smaller effect of solvent and temperature.
Effect of alcohols on the photooxidative behavior of diethyl sulfide
Clennan, Edward L.,Greer, Alexander
, p. 4793 - 4797 (1996)
The reactions of singlet oxygen with diethyl sulfide (Et2S) in benzene alcohol mixtures have been examined. The salient discoveries include: (1) the rate constants of product formation, kr, in benzene/methanol mixtures are a function of the concentration of methanol, (2) the ability of alcohols to supress physical quenching are a function of their pKa's, and (3) trapping experiments with diphenyl sulfoxide are consistent with two distinct intermediates. A mechanism which involves formation of a persulfoxide followed by reaction with methanol to give a hydroperoxy-methoxy sulfurane is consistent with all of the results.
A μ-AsO4-Bridging Hexadecanuclear Ni-Substituted Polyoxotungstate
Lian, Chen,Li, Hai-Lou,Yang, Guo-Yu
, p. 3996 - 4003 (2021/04/07)
A novel tetrahedral μ-AsO4-bridging hexadecanuclear Ni-substituted silicotungstate (ST) Na21H10[(AsO4){Ni8(OH)6(H2O)2(CO3)2(A-α-SiW9O34)2}2]·60H2O (1) was made by the reactions of trivacant [A-α-SiW9O34]10- ({SiW9}) units with Ni2+ cations and Na3AsO4·12H2O and characterized by IR spectrometry, elemental analysis, thermogravimetric analysis (TGA), and powder X-ray diffraction (PXRD). 1 contains a novel polyoxoanion [(AsO4){Ni8(OH)6(H2O)2(CO3)2(A-α-SiW9O34)2}2]31- built by four trivacant Keggin [A-α-SiW9O34]10- fragments linked through an unprecedented [(AsO4){Ni8(OH)6(H2O)2(CO3)2}2]9+ cluster, where the tetrahedral AsO4 acts as an exclusively μ2-bridging unit to link multiple Ni centers; such a connection mode appears for the first time in polyoxometalate chemistry. Furthermore, the electrochemical and catalytic oxidation properties of compound 1 have been investigated.
{Ti6}/{Ti10} Wheel Cluster Substituted Silicotungstate Aggregates
Li, Hai-Lou,Lian, Chen,Yang, Guo-Yu
, p. 16852 - 16859 (2021/11/13)
Two novel Ti-oxo wheel cluster substituted silicotungstates (STs) [H2N(CH3)2]9H9[Ti6O6(SiW10O37)3]·11H2O (1) and [H2N(CH3)2]16H10[Ti10O11(SiW10O37)2(SiW9O35)2]·14H2O (2) have been made by hydrothermal reactions. The polyoxoanion of 1 is a ring-shaped trimer where a Ti6O6 ({Ti6}) wheel cluster is encapsulated by three divacant [SiW10O37]10- (SiW10O37) fragments. However, 2 is built by two divacant SiW10O37 units and two rare trivacant [SiW9O35]12- (SiW9O35) fragments and further installs an unprecedented Ti10O11 ({Ti10}) double-wheel cluster. To the best of our knowledge, 2 is rare in POM chemistry. Studies on the catalytic oxidation properties reveal that 1 exhibits high catalytic activity toward the oxidation of various sulfides using H2O2 as an oxidant. Furthermore, 1 can be facilely recycled and reused for at least five cycles without obvious loss of catalytic activity.
