A DFT study of two diiron (II) synthetic model compounds and their diiron(III) peroxide oxygenation products

作者: R. C. Binning , Daniel E. Bacelo

DOI: 10.1002/QUA.22350

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摘要: Unrestricted density functional theory calculations have been conducted on two diiron(II) synthetic model compounds. Calculations employed the BPW91 and BOP functionals with both high-spin broken symmetry low-spin representations of weakly coupled irons. Comparison calculated crystallographic structures is made, good agreement found spin representations. Raman spectral data are available for diiron(III) product reaction O2 to form a bridged peroxide. Calculated harmonic frequencies confirm experimental assignments. Small geometry differences between high results seen in bond lengths, angles, frequencies, densities associated oxo peroxo bridges oxidation products. © 2009 Wiley Periodicals, Inc. Int J Quantum Chem,

参考文章(28)
B. Delley, From molecules to solids with the DMol3 approach Journal of Chemical Physics. ,vol. 113, pp. 7756- 7764 ,(2000) , 10.1063/1.1316015
Tom Ziegler, Arvi Rauk, Evert J. Baerends, On the calculation of multiplet energies by the hartree-fock-slater method Theoretical Chemistry Accounts. ,vol. 43, pp. 261- 271 ,(1977) , 10.1007/BF00551551
Daniel E. Bacelo, R. C. Binning, Computational study of iron(II) and -(III) complexes with a simple model human H ferritin ferroxidase center. Inorganic Chemistry. ,vol. 45, pp. 10263- 10269 ,(2006) , 10.1021/IC060388K
Maricel Torrent, Djamaladdin G. Musaev, Harold Basch, Keiji Morokuma, Computational studies of reaction mechanisms of methane monooxygenase and ribonucleotide reductase. Journal of Computational Chemistry. ,vol. 23, pp. 59- 76 ,(2002) , 10.1002/JCC.1157
Donald M. Kurtz, Structural similarity and functional diversity in diiron-oxo proteins Journal of Biological Inorganic Chemistry. ,vol. 2, pp. 159- 167 ,(1997) , 10.1007/S007750050120
Takao Tsuneda, Toshihisa Suzumura, Kimihiko Hirao, A NEW ONE-PARAMETER PROGRESSIVE COLLE-SALVETTI-TYPE CORRELATION FUNCTIONAL Journal of Chemical Physics. ,vol. 110, pp. 10664- 10678 ,(1999) , 10.1063/1.479012
Louis Noodleman, Evert Jan Baerends, Electronic structure, magnetic properties, ESR, and optical spectra for 2-iron ferredoxin models by LCAO-X.alpha. valence bond theory Journal of the American Chemical Society. ,vol. 106, pp. 2316- 2327 ,(1984) , 10.1021/JA00320A017
Ronald Eugene Stenkamp, Dioxygen and hemerythrin Chemical Reviews. ,vol. 94, pp. 715- 726 ,(1994) , 10.1021/CR00027A008