High Oxidation State Organometallic And Coordination Chemistry

Download or read book High Oxidation State Organometallic and Coordination Chemistry written by William Allen Reinerth and published by . This book was released on 1996 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal-thioaldehyde complexes were reviewed in Chapter 1. A series of organoosmium(VI) thiolate complexes, (Os(N)$rm(CHsb2SiMesb3)sb2(mu$-SR) $sb2$ (R = Et, CMe$sb3,$ CHMe$sb2,$ CH$sb2$CHMe$sb2,$ CH$sb2$Ph), and the tetraalkoxide and tetrathiolate complexes $rmlbrack PPhsb4rbracklbrack Os(N)(ECHsb2Ph)sb4rbrack$ (E = O, S) were synthesized and characterized. Thermolysis of the tetrathiolate forms benzyl disulfide while the tetraalkoxide complex produces benzaldehyde and benzyl alcohol in a 1:1 ratio upon heating. This first reported example of $beta$-H elimination from an osmium-alkoxide complex is presented in Chapter 2. The reactivity of the cationic, solvate complex $rmlbrack Os(N)(CHsb2SiMesb3)sb2(NCsb5Hsb5)sb2rbracklbrack BFsb4rbrack$ with a variety of anionic ligands is reported in Chapter 3. Reactions of this solvate complex with monodentate, anionic ligands yield binuclear or trinuclear complexes, whereas reactions with multidentate and facially-coordinant, anionic ligands, such as indenyl and tris(pyrazolyl)borate, yield mononuclear complexes. The synthesis of several nitridoosmium and nitridoruthenium(VI)-dithiolene complexes is reported in Chapter 4. Included among these are the first organometallic dithiolene complexes possessing multiply-bonded ligands.