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Volumn 44, Issue 25, 2005, Pages 9322-9334

Computational studies of the H-cluster of Fe-only hydrogenases: Geometric, electronic, and magnetic properties and their dependence on the [Fe 4S4] cubane

Author keywords

[No Author keywords available]

Indexed keywords

FERROUS ION; FERROUS SULFIDE; HYDROGENASE; IRON HYDROGENASE; IRON SULFUR PROTEIN;

EID: 29544449553     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic050946f     Document Type: Article
Times cited : (96)

References (116)
  • 1
    • 29544449161 scopus 로고    scopus 로고
    • note
    • Abbreviations used: ADF, Amsterdam density functional; AF, anti-ferromagnetic; BS, broken symmetry; CI, configuration interaction; CP-SCF, coupled-perturbed self-consistent field; DFT, density functional theory; ENDOR, electron nuclear double resonance; EPR, electron paramagnetic resonance; F, ferromagnetic; FeHase, Fe-only hydrogenase; FTIR, Fourier transform infrared; HOMO, highest-occupied molecular orbital; HS, high spin; INDO/S, intermediate neglect of differential overlap, spectroscopic parametrization; HOMO, highest occupied molecular orbital; LS, low spin; LUMO, lowest unoccupied molecular orbital; MO, molecular orbital; pdt, propanedithiolate; SOC, spin-orbit coupling; SOMO, singly occupied molecular orbital; ZORA, zeroth-order regular approximation.
  • 37
    • 29544446990 scopus 로고    scopus 로고
    • note
    • 18,19
  • 57
    • 29544447750 scopus 로고    scopus 로고
    • note
    • d.
  • 66
    • 29544445901 scopus 로고    scopus 로고
    • Unpublished results
    • Ahlrichs, R. Unpublished results.
    • Ahlrichs, R.1
  • 79
  • 81
    • 0035936304 scopus 로고    scopus 로고
    • (c) Neese, F. J. Chem. Phys. 2001, 115, 11080-11096.
    • (2001) J. Chem. Phys. , vol.115 , pp. 11080-11096
    • Neese, F.1
  • 98
    • 29544434211 scopus 로고    scopus 로고
    • note
    • cube, are sufficient to model the exchange interactions within the H-cluster.
  • 99
    • 29544437293 scopus 로고    scopus 로고
    • note
    • 9
  • 104
    • 29544449856 scopus 로고    scopus 로고
    • note
    • Cys-H bond distance was fixed at 1.37 Å.
  • 105
    • 29544452223 scopus 로고    scopus 로고
    • note
    • b(π*) character.
  • 108
    • 29544448197 scopus 로고    scopus 로고
    • note
    • For a system with S = 1/2, the Mulliken spin for a given atom (multiplied by 100) should be approximately equal to its percent contribution to the SOMO.
  • 110
    • 29544436178 scopus 로고    scopus 로고
    • note
    • This discrepancy between ADF and ORCA computations is likely due to the fact that the former utilized the nonhybrid BP functional, whereas the latter used the hybrid B3LYP functional. It is well-known that nonhybrid functionals tend to overestimate the degree of metal-ligand covalency, generally leading to larger ligand hyperfine values.
  • 111
    • 29544445704 scopus 로고    scopus 로고
    • note
    • iso values with the experimental results, it does not account for the large anisotropies of the calculated A tensors.
  • 113
    • 29544431566 scopus 로고    scopus 로고
    • See ref 71
    • Although the incorporation of a bridging CO ligand into FeHase models has proved quite challenging, complexes with this feature were recently synthesized and characterized by Rauchfuss and co-workers. See ref 71.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.