Chromium, molybdenum and tungsten

Holder, Alvin A.

doi:10.1039/b514860j

Cited by 2 publications

(1 citation statement)

References 168 publications

(260 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The complexes selected for the given study have been characterized structurally and provide a demonstrative set of examples for investigating differences between late (Hg and Ni) and early (Cr) as well as 3d (Cr) versus 4d (Mo) transition metal thiolate complexes. Furthermore, most of these model complexes provide simple and straightforward references of spectral features for coordination compounds that are relevant to metal toxicity (Hg, 7 Cr, 8,9 15 (where HCys denotes -SCH 2 CH(NH 3 + )COOand Cys denotes -SCH 2 CH(NH 2 )COO -) were synthesized as described previously.…”

Section: Introductionmentioning

confidence: 99%

Electronic Structure of Transition Metal−Cysteine Complexes from X-ray Absorption Spectroscopy

2008

View full text Add to dashboard Cite

The electronic structures of HgII, NiII, CrIII, and MoV complexes with cysteine were investigated by sulfur K-edge X-ray absorption near-edge structure (XANES) spectroscopy and density functional theory. The covalency in the metal-sulfur bond was determined by analyzing the intensities of the electric-dipole allowed pre-edge features appearing in the XANES spectra below the ionization threshold. Because of the well-defined structures of the selected cysteine complexes, the current work provides a reference set for further sulfur K-edge XAS studies of bioinorganic active sites with transition metal-sulfur bonds from cysteine residues as well as more complex coordination compounds with thiolate ligands.

show abstract