"P(OC D15.10), Z(AV0Z4040901)" . "N/A" . . . . "1"^^ . . . "Winter, R. F." . . "N/A" . "Aminoallenylidene Complexes of Ruthenium(II) from the Regioselective Addition of Secondary Amines to Butatrienylidene Intermediates: A Combined Experimental and Theoretical Study of the Hindered Rotation around the CN-Bond."@en . . "0"^^ . "Z\u00E1li\u0161, Stanislav" . "Aminoallenylidene Complexes of Ruthenium(II) from the Regioselective Addition of Secondary Amines to Butatrienylidene Intermediates: A Combined Experimental and Theoretical Study of the Hindered Rotation around the CN-Bond." . "4"^^ . . "0"^^ . . "RIV/61388955:_____/03:54030062!RIV/2004/AV0/A54004/N" . "Aminoallenylidene Complexes of Ruthenium(II) from the Regioselective Addition of Secondary Amines to Butatrienylidene Intermediates: A Combined Experimental and Theoretical Study of the Hindered Rotation around the CN-Bond."@en . "RIV/61388955:_____/03:54030062" . "aminoallenylidene complexes; ruthenium; experimental study"@en . "597892" . "Klinkhammer, K. W." . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "Journal of the Chemical Society. Dalton Transactions" . . "2342;2352" . . "Hartmann, S." . "Aminoallenylidene Complexes of Ruthenium(II) from the Regioselective Addition of Secondary Amines to Butatrienylidene Intermediates: A Combined Experimental and Theoretical Study of the Hindered Rotation around the CN-Bond." . . "11"^^ . "1472-7773" . . "Aminoallenylidene complexes trans-[Cl(dppm)2RuC3(NRR'')(CH3)]+ are obtained from the regioselective addition of secondary amines to trans-[Cl(dppm)2Ru=C=C=C=CH2]+. Unsymmetrically substituted amines give rise to Z/E isomeric mixtures. Dynamic 31P-NMR spectroscopy gave an energy barrier of about 85 kJ/mol T for rotation around the CN-bond pointing to a large contribution of the iminium alkynyl resonance form trans-[Cl(dppm)2Ru\u016FCC-C(=NRR'''')(CH3)]+. This is also indicated by the pronounced bond length alternation within the RuC3N-chain as is revealed by X-ray structure analysis of the Z isomer of the (benzylmethyl)methylamine derivative 2d. The issue of NR2 rotation was also addressed by DFT calculations on the trans-[Cl(dhpm)2RuC3{N(CH3)2}(CH3)]+ model complex (dhpm = H2PCH2PH2). Upon rotation around the iminium type CN bond nitrogen lone pair and the -system of the allenylidene ligand are decoupled resulting in a significantly longer CN bond." . . "[3856A24D3868]" . . "Aminoallenylidene complexes trans-[Cl(dppm)2RuC3(NRR'')(CH3)]+ are obtained from the regioselective addition of secondary amines to trans-[Cl(dppm)2Ru=C=C=C=CH2]+. Unsymmetrically substituted amines give rise to Z/E isomeric mixtures. Dynamic 31P-NMR spectroscopy gave an energy barrier of about 85 kJ/mol T for rotation around the CN-bond pointing to a large contribution of the iminium alkynyl resonance form trans-[Cl(dppm)2Ru\u016FCC-C(=NRR'''')(CH3)]+. This is also indicated by the pronounced bond length alternation within the RuC3N-chain as is revealed by X-ray structure analysis of the Z isomer of the (benzylmethyl)methylamine derivative 2d. The issue of NR2 rotation was also addressed by DFT calculations on the trans-[Cl(dhpm)2RuC3{N(CH3)2}(CH3)]+ model complex (dhpm = H2PCH2PH2). Upon rotation around the iminium type CN bond nitrogen lone pair and the -system of the allenylidene ligand are decoupled resulting in a significantly longer CN bond."@en .