caa a22 4500 378871099 CHVBK 20180305123409.0 cr unu---uuuuu 161128e20030101xx s 000 0 eng 10.1515/irm-2003-0102 doi (NATIONALLICENCE)gruyter-10.1515/irm-2003-0102 Site of Bond Breaking in mer-(Dihapto-[60]fullerene) (Dihapto-1,2-Bis-(DiphenyIphosphino)ethane Tricarbonyl Tungsten(0) [Elektronische Daten] [Yessenia Ocasio-Delgadof, Luis A. Rivera-Riveraf, Gisela Crespo-Romanf, Jose E. Cortes-Figueroa] Piperidine (pip) displaces l,2-bis(diphenylphosphino)ethane (dppe) from mer-(η2-C60)(η2-dppe)W(CO)3 to produce mer*-(η2-C60)(η1-ρίρ)2\ν(ΟΟ)3. The reactions are first order and second order with respect to the molar concentrations of m£r-(r|2-C60)(r|2-dppe)W(CO)3 and pip, respectively. The proposed mechanism, based on the rate law and on the activation parameters, involves an initial pip-assisted ringopening of the dppe ligand to produce the electronically-saturated intermediate fac (η2-C60)(η'-ρίρ) (n1-dppe)W(CO)3. This mechanism differs from previously proposed mechanisms for the ligand exchange reactions of closely-related complexes such as/fac-(η1-L)(η2-dppe)W(CO)3 (L = CO, piperidine, pyridine) and is contrary to the known cis labilizing property of dppe. These results suggest that [60]fullerene has a strong steric influence on the inorganic moiety of the complex and on its chemical behavior. © 2014 by Walter de Gruyter Berlin/Boston [60]fullerene nationallicence Metal Carbonyls nationallicence Transition Metals nationallicence Ocasio-Delgadof Yessenia aut Rivera-Riveraf Luis A. aut Crespo-Romanf Gisela aut Cortes-Figueroa Jose E. aut BioInorganic Reaction Mechanisms De Gruyter 5/1(2003-01-01), 13-20 2191-2483 5:1<13 2003 5 irm https://doi.org/10.1515/irm-2003-0102 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/irm-2003-0102 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ocasio-Delgadof Yessenia aut NATIONALLICENCE 700 1- Rivera-Riveraf Luis A. aut NATIONALLICENCE 700 1- Crespo-Romanf Gisela aut NATIONALLICENCE 700 1- Cortes-Figueroa Jose E. aut NATIONALLICENCE 773 0- BioInorganic Reaction Mechanisms De Gruyter 5/1(2003-01-01), 13-20 2191-2483 5:1<13 2003 5 irm CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter