کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1304905 | 974860 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and structural characterization of tris (phenolate)amine complexes of antimony derived from [κ4-N(CH2ArBu2tO)3]Sb Synthesis and structural characterization of tris (phenolate)amine complexes of antimony derived from [κ4-N(CH2ArBu2tO)3]Sb](/preview/png/1304905.png)
The antimony aryloxide compound [κ4-N(CH2ArBu2tO)3]Sb may be readily obtained via the reaction of Sb(OEt)3 with tris(3,5-di-t -butyl-2-hydroxybenzyl)amine, N(CH2ArBu2tOH)3.[κ4-N(CH2ArBu2tO)3]Sb forms the adduct [κ4-N(CH2ArBu2tO)3]Sb(OSMe2) upon treatment with Me2SO, and comparison of the molecular structure of [κ4-N(CH2ArBu2tO)3]Sb(OSMe2) with that of [κ4-N(o-C6H4O)3]Sb(OSMe2) demonstrates that the Sb–OSMe2 bond length in the former complex is significantly longer than that in the latter. This observation indicates that the [κ4-N(CH2ArBu2tO)3] ligand engenders a less Lewis acidic antimony center than does [κ4-N(o–C6H4O)3][κ4-N(o–C6H4O)3]. [κ4-N(CH2ArBu2tO)3]Sb exhibits diverse reactivity. For example, treatment of [κ4-N(CH2ArBu2tO)3]Sb with AcOH cleaves one of the Sb–O bonds to give [κ3-N(CH2ArBu2tO)2(CH2ArBu2tOH)]Sb(κ1-O2CMe), Br2 undergoes oxidative addition to give N(CH2ArBu2tO)3]SbBr2, while Me3NO · 2H2O yields the oxo and hydroxo complexes {[κ4-N(CH2ArBu2tO)3]Sb(μ-O)}2, [κ4-N(CH2ArBu2tO)3]Sb(OH)2, and {[κ4-N(CH2ArBu2tO)3]SbVO}4{Sb4IIIO6}.
The antimony aryloxide compound [κ4-N(CH2ArBu2tO)3]Sb reacts with Br2 to give N(CH2ArBu2tO)3]SbBr2, while Me3NO · 2H2O yields the oxo and hydroxo complexes {[κ4-(N(CH2ArBu2tO)3]Sb(μ-O)}2, [κ4-N(CH2ArBu2tO)3]Sb(OH)2, and {[κ4-N(CH2ArBu2tO)3]SbVO}4{Sb4IIIO6}.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 10, Issue 6, June 2007, Pages 699–704