Dehydrogenation of 1,6-bis(diphenylphosphino) hexane by rhodium(I) and iridium(I) complexes; rhodium(I) and iridium(I) complexes containing the ligands 1,6-bis-(diphenylphosphino)hexane, 1,6-bis(diphenylphosphino)-trans-hex-3-ene, 1,6-bis(diphenylarsino)h

W. Clark P. (1977) Dehydrogenation of 1,6-bis(diphenylphosphino) hexane by rhodium(I) and iridium(I) complexes; rhodium(I) and iridium(I) complexes containing the ligands 1,6-bis-(diphenylphosphino)hexane, 1,6-bis(diphenylphosphino)-trans-hex-3-ene, 1,6-bis(diphenylarsino)h. Journal of Organometallic Chemistry, 137 2: 235-255. doi:10.1016/S0022-328X(00)83531-7


Author W. Clark P.
Title Dehydrogenation of 1,6-bis(diphenylphosphino) hexane by rhodium(I) and iridium(I) complexes; rhodium(I) and iridium(I) complexes containing the ligands 1,6-bis-(diphenylphosphino)hexane, 1,6-bis(diphenylphosphino)-trans-hex-3-ene, 1,6-bis(diphenylarsino)h
Journal name Journal of Organometallic Chemistry   Check publisher's open access policy
ISSN 0022-328X
Publication date 1977-09-13
Year available 1997
Sub-type Article (original research)
DOI 10.1016/S0022-328X(00)83531-7
Open Access Status Not yet assessed
Volume 137
Issue 2
Start page 235
End page 255
Total pages 21
Publisher ROYAL SOC CHEMISTRY
Language eng
Subject 1303 Specialist Studies in Education
1606 Political Science
1605 Policy and Administration
1604 Human Geography
2505 Materials Chemistry
Abstract The ligand 1,6-bis(diphenylphosphino)hexane undergoes a dehydrogenation reaction with M2X2(C8H12)2, C8H12 = cis cis cycloocta-1,5-diene to form MX(BDPH), M Rh and X Cl or Br, or M Ir and X C1, and BDPH 1,6-bis(diphenylphosphino)-trans-hex-3-ene. In the presence of carbon monoxide 1,6-bis(diphenylphosphino)hexane and 1,6-bis(diphenylarsino)hexane react with M2Cl2(C8H12)2 to give the dimeric complexes [M(CO)Cl(ligand)]2 which do not dehydrogenate. The ligands (C6H5)2P(CH2)nP(C6H5)2, n = 5, 7 or 8 and (C6H5)2As(CH2)6As(C6H5)2 do not undergo the dehydrogenation reaction under the same conditions. The ligands 1,6-bis(diphenyl-phosphino)-trans-hex-3-ene and 1,6-bis(diphenylarsino)-trans-hex-3-ene have been prepared and undergo normal substitution reactions with rhodium(I) and iridium(I) complexes. The square-planar complexes MCl(BDPH) react reversibly with carbon monoxide forming fluxional five coordinate complexes M(CO)Cl(BDPH), M Rh or Ir and with excess carbon monoxide to form [M(CO)2(BDPH)]+, M Ir, isolated as the tetraphenylborate salt. A possible mechanism for the dehydrogenation reaction is discussed. Analytical, mass spectral, infrared spectral, 1H N.M.R. spectral and 13C N.M.R. spectral data are consistent with the above reactions and formulations.
Keyword Chemistry, Inorganic & Nuclear
Chemistry
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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