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Book Ligand Exchange Reactions of Some Cobalt  III  Complexes

Download or read book Ligand Exchange Reactions of Some Cobalt III Complexes written by Thomas Madison Vickrey and published by . This book was released on 1974 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Isotopic Exchange Reactions of Cobalt Complexes

Download or read book Isotopic Exchange Reactions of Cobalt Complexes written by Ningondappa Shenkreppa Biradar and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Journal of the Chemical Society

Download or read book Journal of the Chemical Society written by Chemical Society (Great Britain) and published by . This book was released on 1964 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12.

Book Bibliography of Mass Spectroscopy Literature for 1970

Download or read book Bibliography of Mass Spectroscopy Literature for 1970 written by and published by . This book was released on 1972 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Modern Coordination Chemistry

Download or read book Modern Coordination Chemistry written by Jack Lewis and published by . This book was released on 1960 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Chemistry  Electrochemistry and Electron Transfer Induced Reactions of Cobalt Complexes with Fluorinated Ligands

Download or read book Chemistry Electrochemistry and Electron Transfer Induced Reactions of Cobalt Complexes with Fluorinated Ligands written by Kihanduwage N. Gunawardhana and published by . This book was released on 2007 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemical or electrochemical reduction of the trifluoroacetyl complex CF3COCo(CO)3PPh3 involves a single electron transfer yielding trifluoromethyl radical and an anionic cobalt carbonyl complex. The mechanism is proposed to involve electron transfer followed by initial dissociation of either a carbonyl or phosphine ligand from the 19-electron [CF3COCo(CO)3PPh3]- anion. The resulting 17-electron intermediate undergoes subsequent one-electron reductive elimination of trifluoromethyl radical by homolytic cleavage of the carbon-carbon bond of the trifluoroacetyl group. The CF3. radical can be trapped by either benzophenone anion, forming the anion of [alpha]-(trifluoromethyl)benzhydrol, or Bu3SnH, yielding CF3H. The final organometallic product is an 18-electron anion, either [Co(CO)4]- or [Co(CO)3(PPh3)]-, depending upon which ligand is initially lost. The chemical or electrochemical reduction CF3Co(CO)3PPh3 is a two-electron process involving heterolytic cobalt-carbon bond cleavage to yield trifluoromethyl anion and cobalt carbonyl anions. The trifluoromethyl anion rapidly decomposes to fluoride and difluorocarbene. This carbene may dimerize to form C2F4. The unstable fluoro carbene can also be trapped by cyclohexene. The mechanism proposed for the reduction of C6F5Co(CO)3PPh3 involves a homolytic cobalt-carbon bond cleavage to form C6F5. radical. The resultant C6F5. radical abstracts hydrogen or deuterium from the solvent or trace amounts of water to produce C6F5H or C6F5D. With an excess of reducing agent this C6F5. radical can be further reduced to C6F5- anion before forming pentafluorobenzene by protonation. The inorganic fragment, the 18-electron [Co(CO)3PPh3]- anion, may participate in a ligand exchange reaction to form [Co(CO)4]-. In addition, interesting reactivity was observed between C6F5Co(CO)3PPh3 and tin hydrides, deuterides and chlorides without any reducing agents. We have demonstrated that ligand replacement reactions can be used for the synthesis of new cobalt-NHC complexes with fluorinated alkyl, acyl and aryl ligands. In addition, the X-ray crystal structure of CF3COCo(CO)3PPh3 was obtained to compare the bond lengths and bond angles with other related compounds. An unusual Co-C(acyl) bond length was observed for CF3COCo(CO)3PPh3. Considering the bond lengths of other alkyl and acyl complexes, it can generally be argued that the position of the alkyl/acyl equilibrium varies with the Co-C(alkyl/acyl) bond length.

Book Bulletin of the Chemical Society of Japan

Download or read book Bulletin of the Chemical Society of Japan written by Nihon Kagakkai and published by . This book was released on 1976 with total page 1446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Reactions of Some Cobalt Coordination Compounds

Download or read book Reactions of Some Cobalt Coordination Compounds written by Frazier H. Rohm and published by . This book was released on 1965 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Journal of the Chemical Society

Download or read book Journal of the Chemical Society written by and published by . This book was released on 1964 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Nuclear Science Abstracts

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-07 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Quarterly Journal of the Chemical Society of London

Download or read book Quarterly Journal of the Chemical Society of London written by Chemical Society (Great Britain) and published by . This book was released on 1971 with total page 1326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book U S  Government Research   Development Reports

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969-03 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: