Inorganic chemistry.
Publisher:
American Chemical Society.
Frequency: Biweekly
Country: United States
Language: English
Author(s):
American Chemical Society.
Start Year:1962 -
ISSN:
0020-1669 (Print)
1520-510X (Electronic)
0020-1669 (Linking)
1520-510X (Electronic)
0020-1669 (Linking)
Impact Factor
4.6
2022
| NLM ID: | 0366543 |
| (DNLM): | I17140000(s) |
| (OCoLC): | 01753164 |
| Coden: | INOCAJ |
| Classification: | W1 IN455R |
Chiral Selectivity in Inter-reactant Recognition and Electron Transfer of the Oxidation of Horse Heart Cytochrome c by Trioxalatocobaltate(III). Outer-sphere electron transfer (ET) between optically active transition-metal complexes and either other transition-metal complexes or metalloproteins is a prototype reaction for kinetic chirality. Chirality as the ratio between bimolecular rate constants of two enantiomers mostly amounts to 1.05-1.2 with either the Λ or Δ form the more reactive, but the origin of chirality in ET parameters such as work terms, electronic transmission coefficient, and nuclear reorganization free energy has not been addressed. We report a study of ET between the Λ-/Δ-[Co(Ox)3](3-) pair (Ox = oxalate) and hor...
A multifrequency HYSCORE study of weakly coupled nuclei in frozen solutions of high-spin aquometmyoglobin. In this work, we show the extreme power of multifrequency HYSCORE (hyperfine sublevel correlation spectroscopy) techniques to unravel the hyperfine interactions of the electron spin with the remote nuclei in the heme site of high-spin ferric heme proteins. Horse heart aquo-metmyoglobin was used as a model system to demonstrate the power of these techniques. Experimental evidence was collected and assigned to protons of the proximal histidine ligand, to the mesoprotons of the heme ligand, and to two different protons of the distal water ligand. The latter difference relates to the stabilization...