Synthesis and Characterization of New Dicationic Dihydrogen Complexes of Ruthenium

References

• Kubas , G. J. 2001 . Metal Dihydrogen and σ‐Bond Complexes: Structure, Theory and Reactivity New York : Kluwer .
   Google Scholar
• Peruzzini , M. and Poli , R. 2001 . Recent Advances in Hydride Chemistry Amsterdam : Elsevier .
   Google Scholar
• Kubas , G. J. 2004 . Heterolytic splitting of H‐H, Si‐H, and other σ‐bonds on electrophilic metal centers . Adv. Inorg. Chem. , 56 : 127
   Web of Science ®Google Scholar
• Nishibayashi , Y. , Takei , I. and Hidai , M. 1999 . Novel catalytic hydrogenolysis of trimethylsilyl enol ethers by the use of an acidic ruthenium dihydrogen complex . Angew. Chem. Int. Ed. , 38 : 3047
   PubMed Web of Science ®Google Scholar
• Clapham , S. E. , Hadzovic , A. and Morris , R. H. 2004 . Mechanisms of the H2‐hydrogenation and transfer hydrogenation of polar bonds catalyzed by ruthenium hydride complexes . Coord. Chem. Rev. , 248 : 2201
   Web of Science ®Google Scholar
• Rocchini , E. , Mezzetti , A. , Rügger , H. , Burckhardt , U. , Gramlich , V. , Del Zotto , A. D. , Martinuzzi , P. and Rigo , P. 1997 . Heterolytic H2 activation by dihydrogen complexes. Effects of the ligand X in [M(X)H2{Ph2P(CH2)3PPh2}2]n+ (M=Ru, Os; X=CO, Cl, H) . Inorg. Chem. , 36 : 711
   Web of Science ®Google Scholar
• Fong , T. P. , Lough , A. J. , Morris , R. H. , Mezzetti , A. , Rocchini , E. and Rigo , P. 1998 . Turning dihydrogen gas into a strong acid. Formation and reactions of the very acidic ruthenium dihydrogen complexes trans‐[Ru(H2)(CNH){PPh2(CH2)nPPh2}2][O3SCF3]2 (n=2 or 3) . J. Chem. Soc., Dalton Trans. , : 2111
   Google Scholar
• Fong , T. P. , Forde , C. E. , Lough , A. J. , Morris , R. H. , Rigo , P. , Rocchini , E. and Stephan , T. 1999 . Synthesis of the acidic dihydrogen complexes trans‐[M(H2)(CN)L2]+ and trans‐[M(H2)(CNH)L2]2+ where M=Fe, Ru, Os and L=dppm, dppe, dppp, depe, and dihydrogen substitution by the trifluoromethanesulfonate anion to give trans‐[Ru(OTf)(CN)L2] or trans‐[Ru(OTf)(CNH)L2]OTf . J. Chem. Soc., Dalton Trans. , : 4475
   Google Scholar
• Majumdar , K. K. , Nanishankar , H. V. and Jagirdar , B. R. 2001 . Some new dicationic dihydrogen complexes of ruthenium . Eur. J. Inorg. Chem. , : 1847
   Google Scholar
• Maseras , F. , Koga , N. and Morokuma , K. 1994 . Ab Initio MO and MM study on the nature of [Ru(P‐P)2″H3″]+ (P‐P=dppb, diop, dpmb, dppe) complexes . Organometallics , 13 : 4008
   Web of Science ®Google Scholar
• Kranenburg , M. , Kamer , P. C. , van Leeuwen , W. N. M. and Chaudret , B. 1997 . Diphosphines with large natural bite angles lead to the formation of non‐classical cis‐(diphosphine)2Ru(H)(H2)+ complexes . Chem. Commun. , : 373
   Web of Science ®Google Scholar
• Mathew , N. , Jagirdar , B. R. and Ranganathan , A. 2003 . Trans→cis isomerization of trans‐[(dppm)2Ru(H)(L)][BF4] (L=P(OR)3) complexes: Preparation of cis‐[(dppm)2Ru(η2‐H2)(L)][BF4]2 . Inorg. Chem. , 42 : 187
   PubMed Web of Science ®Google Scholar
• Hewertson , W. and Watson , H. R. 1962 . J. Chem. Soc. , : 1490
   Web of Science ®Google Scholar
• Weber , P. W. , Gokel , G. W. and Ugi , I. K. 1972 . Phase transfer catalysis in the Hofmann carbylamine reaction . Angew. Chem. Int. Ed. , 11 : 530
   Web of Science ®Google Scholar
• Khorasani‐Motlagh , M. , Safari , N. , Pamplin , C. B. , Patrick , B. O. and James , B. R. 2001 . Bis(mercapto) and hydrido(thiolate) complexes of Ru(II)–dppm (dppm=Ph2PCH2PPh2) . Inorg. Chim. Acta , 320 : 184
   Web of Science ®Google Scholar
• Hamilton , D. G. and Crabtree , R. H. 1988 . An NMR method for distinguishing classical from nonclassical structures in transition metal polyhydrides . J. Am. Chem. Soc. , 110 : 4126
   Web of Science ®Google Scholar
• Chinn , M. S. , Heinekey , D. M. , Payne , N. G. and Sofield , C. D. 1989 . Highly reactive dihydrogen complexes of ruthenium and rhenium: facile heterolysis of coordinated dihydrogen . Organometallics , 8 : 1824
   Web of Science ®Google Scholar
• 1999 . Bruker SMART and SAINT Versions 6.22a Wisconsin : BRUKER AXS Madison .
   Google Scholar
• Sheldrick , G. M. 2001 . SADABS, Version 2, Multiscan Absorption Correction Progam Göttingen, , Germany : University of Göttingen .
   Google Scholar
• Sheldrick , G. M. 1997 . SHELXL‐97 Program for the Solution of Crystal Structures Göttingen, , Germany : University of Göttingen .
   Google Scholar
• Mathew , N. , Jagirdar , B. R. , Gopalan , R. S. and Kulkarni , G. U. 2000 . Influence of the cone angles and the π‐acceptor properties of phosphorus‐containing ligands in the chemistry of dihydrogen complexes of ruthenium . Organometallics , 19 : 4506
   Web of Science ®Google Scholar
• Santos , A. , Lopez , J. , Montoya , J. , Noheda , P. , Romero , A. and Echavarren , A. M. 1994 . Synthesis of new ruthenium(II) carbonyl hydrido, alkenyl, and alkynyl complexes with chelating diphosphines . Organometallics , 13 : 3605
   Web of Science ®Google Scholar
• Mirza , H. A. , Vittal , J. J. and Puddephatt , R. J. 1993 . A new route to binuclear and trinuclear ruthenium carbonyl derivatives; structures of [Ru3(CO)6(μ‐Ph2PCH2PPh2)3] and its proton adduct . Inorg. Chem. , 32 : 1327
   Web of Science ®Google Scholar
• Laarab , H. B. , Chaudret , B. , Dahan , F. , Devillers , J. , Poilblanc , R. and Sabo‐Etienne , S. 1990 . Heterobimetallic molybdenum‐ruthenium and manganese‐ruthenium complexes from direct reactions of RuH2(dppm)2 with metal carbonyls . New J. Chem. , 14 : 321
   Google Scholar
• Nanishankar , H. V. , Nethaji , M. and Jagirdar , B. R. 2004 . Synthesis and characterization of the first examples of dicationic dihydrogen complexes of iron and ruthenium with the PF3 ligand . Eur. J. Inorg. Chem. , : 3048
   Web of Science ®Google Scholar
• Winter , R. F. and Scheiring , T. Z. 2000 . Synthesis, structures, ligand substitution reactions, and electrochemistry of the nitrile complexes cis‐[Ru(dppm)2Cl(NCR)]+PF6 − (dppm=bis(diphenylphosphino)methane, R=CH3, C2H5,tBu, Ph) . Anorg. Allg. Chem. , 626 : 1196
   Web of Science ®Google Scholar
• Perdoncin , G. and Scorrano , G. 1977 . Protonation equilibria in water at several temperatures of alcohols, ethers, acetone, dimethyl sulfide, and dimethyl sulfoxide . J. Am. Chem. Soc. , 99 : 6983
   Web of Science ®Google Scholar
• Bordwell , F. G. 1988 . Equilibrium acidities in dimethyl sulfoxide solution . Acc. Chem. Res. , 21 : 456
   Web of Science ®Google Scholar
• Earl , K. A. , Jia , G. , Maltby , P. A. and Morris , R. H. 1991 . η2‐Dihydrogen on the brink of homolytic cleavage: trans‐[Os(H ·  ·  · H)H(PEt2CH2CH2PEt2)2]+ has spectroscopic, chemical properties between those of the isoelectronic complexes trans‐[OsH(PPh2CH2CH2PPh2)2(η2‐H2)]+ and ReH3(PPh2CH2CH2PPh2)2 . J. Am. Chem. Soc. , 113 : 3027
   Web of Science ®Google Scholar
• Heinekey , D. M. and Luther , T. A. 1996 . Synthesis, characterization, and reactivity of dicationic dihydrogen complexes of osmium . Inorg. Chem. , 35 : 4396
   PubMed Web of Science ®Google Scholar
• Maltby , P. A. , Schlaf , M. , Steinbeck , M. , Lough , A. J. , Morris , R. H. , Klooster , W. T. , Koetzle , T. F. and Srivastava , R. C. 1996 . Dihydrogen with frequency of motion near the 1H Larmor Frequency. Solid‐state structures and solution NMR spectroscopy of osmium complexes trans‐[Os(H ·  · H)X(PPh2CH2CH2PPh2)2]+ (X=Cl, Br) . J. Am. Chem. Soc. , 118 : 5396
   Web of Science ®Google Scholar
• Mathey , F. and Sevin , A. 1996 . Molecular Chemistry of the Transition Elements 139 – 140 . West Sussex : Wiley . Chapter 3
   Google Scholar
• Morris , R. H. and Wittebort , R. 1997 . Effect of a Libration or Hopping motion of the η2‐dihydrogen ligand on longitudinal Nuclear Magnetic Resonance relaxation . J. Magn. Reson. Chem. , 35 : 243
   Web of Science ®Google Scholar
• Ng , S. M. , Fang , Y. Q. , Lau , C. P. , Wong , W. T. and Jia , G. 1998 . Synthesis, characterization, and acidity of ruthenium dihydrogen complexes with 1,4,7‐triazacyclononane, 1,4,7‐trimethyl‐1,4,7‐triazacyclononane, and hydrotris(pyrazolyl)borato ligands . Organometallics , 17 : 2052
   Web of Science ®Google Scholar
• Cappellani , E. P. , Drouin , S. D. , Jia , G. , Maltby , P. A. , Morris , R. H. and Schweitzer , C. T. 1994 . Effect of the ligand and metal on the pK a values of the dihydrogen ligand in the series of complexes [M(H2)H(L)2]+, M=Fe, Ru, Os, containing isosteric ditertiaryphosphine ligands, L . J. Am. Chem. Soc. , 116 : 3375
   Web of Science ®Google Scholar
• Xu , Z. , Bytheway , I. , Jia , G. and Lin , Z. 1999 . Theoretical studies of the acidity of the dihydrogen complexes trans‐[LM(H2PCH2CH2PH2)2(η2‐H2)]n+ . Organometallics , 18 : 1761
   Web of Science ®Google Scholar
• Forde , C. E. , Landau , S. E. and Morris , R. H. 1997 . Dicationic iron(II) complexes with dihydrogen trans to π‐acid ligands: trans‐[Fe(η2‐H2)(L)(dppe)2]2+ (L=CO or CNH). Is there Fe–H2 π‐back bonding? . J. Chem. Soc. Dalton Trans. , : 1663
   Google Scholar