The performance of methallyl nickel complexes and boron adducts in the catalytic activation of ethylene: a conceptual DFT perspective

Verfasser / Beitragende:
[Oleksandra Trofymchuk, Daniela Ortega, Soledad Gutiérrez-Oliva, René Rojas, Alejandro Toro-Labbé]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/9(2015-09-01), 1-10
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00894-015-2770-6  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00894-015-2770-6 
245 0 4 |a The performance of methallyl nickel complexes and boron adducts in the catalytic activation of ethylene: a conceptual DFT perspective  |h [Elektronische Daten]  |c [Oleksandra Trofymchuk, Daniela Ortega, Soledad Gutiérrez-Oliva, René Rojas, Alejandro Toro-Labbé] 
520 3 |a In this work, global and local descriptors of chemical reactivity and selectivity are used to explain the differences in reactivities toward ethylene of methallyl nickel complexes and their B(C6F5)3 and BF3 adducts. DFT calculations were used to explain why nickel complexes alone are inactive in ethylene polymerization while their boron adducts can activate it. It is shown that chemical potential, hardness, electrophilicity and molecular electrostatic potential surfaces describe fairly well the reactivity and selectivity of these organometallic systems toward ethylene. Experimental data indicates that addition of a borane molecule to nickel complexes changes dramatically their reactivity—behavior that is confirmed computationally. Our results show that bare complexes are unable to activate ethylene—a Lewis base—because they also behave as Lewis bases. The addition of the co-catalyst—a Lewis acid—turns the adducts into Lewis acids, making them active towards ethylene. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Chemical reactivity  |2 nationallicence 
690 7 |a Reactivity of catalysts  |2 nationallicence 
690 7 |a Methallyl Nickel catalysts  |2 nationallicence 
690 7 |a Conceptual DFT  |2 nationallicence 
690 7 |a Electronic chemical potential, hardness and electrophilicity  |2 nationallicence 
700 1 |a Trofymchuk  |D Oleksandra  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
700 1 |a Ortega  |D Daniela  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
700 1 |a Gutiérrez-Oliva  |D Soledad  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
700 1 |a Rojas  |D René  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
700 1 |a Toro-Labbé  |D Alejandro  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-10  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2770-6  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2770-6  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Trofymchuk  |D Oleksandra  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ortega  |D Daniela  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Gutiérrez-Oliva  |D Soledad  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rojas  |D René  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Toro-Labbé  |D Alejandro  |u Nucleus Millennium Chemical Processes and Catalysis (CPC), Laboratorio de Química Teórica Computacional (QTC), Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 306, Santiago-22, Chile  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/9(2015-09-01), 1-10  |x 1610-2940  |q 21:9<1  |1 2015  |2 21  |o 894