Thioxane oxide

Also dipropyl sulfoxide [LnBra (161)], diphenyl sulfoxide [Lnl3 (155)], tetramethylene sulfoxide [LnCl3 (162), LnBrs (163), Lnls (164)], and thioxane oxide [LnCl3 (166), LnBrs (163), Lnl3 (266)]. 

Hexafluorophosphate derivatives, such as [M(Me2SO)n][PF6]3 (M = La, Lu, Y), have been synthesized (365), and infrared data show O-bonding of the sulfoxide with ionic hexafluorophosphate groups. Analytical data are incomplete for this series, as decomposition, postulated to be to lanthanide fluorides, occurs. The (CH2)4SO complexes [M( CH2 4SO)t.5][PF6]3 are reported (145), which are 3 1 electrolytes with uncoordinated anions, implying a possible semibridged structure, as previously mentioned. Complexes of other cyclic sulfoxides, including thioxane oxide (146) and trans-1,4-dithiane-1,4-dioxide (147) derivatives of hexafluorophosphate salts have also been prepared. 

In addition to these systematic studies of lanthanide sulfoxide complexes, with variation in both sulfoxide and anion, other more isolated reports are available. Lanthanide isothiocyanate complexes of the cyclic sulfoxides thioxane oxide (490) and tetramethylene sulfoxide (493) have been synthesized and complexes of the unusual potentially chelating ligand 2-(ethylsulfinyl)pyridine-V-oxide (63) described. Detailed studies of the solvation of lanthanide-shift reagents by Me2SO have also appeared (178,179). 

Thiophene, dioxirane oxidation, 1156 Thiourea, dialkyl peroxide synthesis, 706 1,4-Thioxane, oxidation, 805-6 Thiyl radicals, triplet oxygen domino reactions, 221-3, 224, 225, 226 THPO (1,2,3,4-tetrahydronaphthyl hydroperoxide), 331-2 Thromboxanes, from arachidonic hydroperoxides, 612... 

Adducts of Ga and In perchlorates with tetramethylene sulphoxide, M(C104)3,6TMS0, and of Ga perchlorate with thioxan oxide, Ga(C104)3,6TS0, have been prepared and characterized.527 A considerable shift of i>(S=0) to lower wavenumber indicated co-ordination via the sulphoxide oxygen. 

Other sulfoxides that have been studied recently include thioxane oxide (Vincentini and Vieira, 1973 Vincentini and Perrier, 1974 Serra et al., 1976), tetramethylenesulfoxide (Bertan and Madan, 1972 Vicentini and Zinner, 1975), and trans-l,4-dithiane-1,4-dioxide (Vicentini et al., 1975). The results that have been obtained follow the same general patterns previously discussed. 

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