Thermodynamic and kinetic study of cleavage of the N-O bond of N-oxides by a vanadium(III) complex: enhanced oxygen atom transfer reaction rates for adducts of nitrous oxide and mesityl nitrile oxide.

作者: Taryn D. Palluccio , Elena V. Rybak-Akimova , Subhojit Majumdar , Xiaochen Cai , Megan Chui

DOI: 10.1021/JA405395Z

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摘要: Thermodynamic, kinetic, and computational studies are reported for oxygen atom transfer (OAT) to the complex V(N[t-Bu]Ar)3 (Ar = 3,5-C6H3Me2, 1) from compounds containing N–O bonds with a range of BDEs spanning nearly 100 kcal mol–1: PhNO (108) > SIPr/MesCNO (75) PyO (63) IPr/N2O (62) MesCNO (53) N2O (40) dbabhNO (10) (Mes mesityl; SIPr 1,3-bis(diisopropyl)phenylimidazolin-2-ylidene; Py pyridine; IPr 1,3-bis(diisopropyl)phenylimidazol-2-ylidene; dbabh 2,3:5,6-dibenzo-7-azabicyclo[2.2.1]hepta-2,5-diene). Stopped flow kinetic OAT reactions show behavior influenced by both mode strength coordination O donor its ease transfer. Four categories observed depending upon magnitudes rate constants involved: (I) dinuclear following an overall third order law (N2O); (II) formation stable oxidant-bound complexes followed in separate step (PyO PhNO); (III) transient a...

参考文章(50)
Mahdi M. Abu-Omar, Oxygen Atom Transfer Physical Inorganic Chemistry. pp. 75- 108 ,(2010) , 10.1002/9780470602577.CH3
Justin K. Brask, Víctor Durà-Vilà, Paula L. Diaconescu, Christopher C. Cummins, Vanadium nitride functionalization and denitrogenation by carbon disulfide and dioxide. Chemical Communications. pp. 902- 903 ,(2002) , 10.1039/B111550M
John-Paul F. Cherry, Adam R. Johnson, Luis M. Baraldo, Yi-Chou Tsai, Christopher C. Cummins, Sergey V. Kryatov, Elena V. Rybak-Akimova, Kenneth B. Capps, Carl D. Hoff, Christopher M. Haar, Steven P. Nolan, On the origin of selective nitrous oxide N-N bond cleavage by three-coordinate molybdenum(III) complexes. Journal of the American Chemical Society. ,vol. 123, pp. 7271- 7286 ,(2001) , 10.1021/JA0031063
N. P. Gritsan, M. S. Platz, Kinetics, spectroscopy, and computational chemistry of arylnitrenes. Chemical Reviews. ,vol. 106, pp. 3844- 3867 ,(2006) , 10.1021/CR040055+
Nicole D. Harrold, Rory Waterman, Gregory L. Hillhouse, Thomas R. Cundari, Group-Transfer Reactions of Nickel-Carbene and -Nitrene Complexes with Organoazides and Nitrous Oxide that Form New C=N, C=O, and N=N Bonds Journal of the American Chemical Society. ,vol. 131, pp. 12872- 12873 ,(2009) , 10.1021/JA904370H
Hongjun Fan, Kenneth G. Caulton, 2-Electron reduction of N2O yields a new ligand binding mode: N-Nitrosoimide Polyhedron. ,vol. 26, pp. 4731- 4736 ,(2007) , 10.1016/J.POLY.2007.05.035
Brian E. Schultz, R. H. Holm, Kinetics of oxygen atom transfer in an analogue reaction system of the molybdenum oxotransferases Inorganic Chemistry. ,vol. 32, pp. 4244- 4248 ,(1993) , 10.1021/IC00072A016
Grant Proulx, Robert G. Bergman, Synthesis and Structure of a Terminal Metal Azide Complex: An Isolated Intermediate in the Formation of Imidometal Complexes from Organic Azides Journal of the American Chemical Society. ,vol. 117, pp. 6382- 6383 ,(1995) , 10.1021/JA00128A038
Alexander G. Tskhovrebov, Euro Solari, Matthew D. Wodrich, Rosario Scopelliti, Kay Severin, Sequential N–O and N–N Bond Cleavage of N-Heterocyclic Carbene-Activated Nitrous Oxide with a Vanadium Complex Journal of the American Chemical Society. ,vol. 134, pp. 1471- 1473 ,(2012) , 10.1021/JA210976A