The inorganic chemistry of the cobalt corrinoids, derivatives of vitamin B 12, is reviewed, with
particular emphasis on equilibrium constants for, and kinetics of, their axial ligand …

CONSPECTUS Porphyrins and the related chlorins and corrins contain a cyclic tetrapyrrole
with the ability to coordinate an active metal center and to perform a variety of functions …

Biologically active derivatives of vitamin B12 are organometallic cobalt-corrinoid complexes
crucial for the healthy function of humans, animals and microbes. Their role as cofactors to …

Ultrafast, polarization-selective time-resolved X-ray absorption near-edge structure (XANES)
was used to characterize the photochemistry of vitamin B12, cyanocobalamin (CNCbl), in …

This Perspective Article highlights recent theoretical developments, and summarizes the
current understanding of the photolytic properties of cobalamins from a computational point …

Time-resolved infrared spectroscopy reveals the flow of electron density through coenzyme
B12 in the light-activated, bacterial transcriptional regulator, CarH. The protein stabilises a …

The biologically active forms of vitamin B 12, methylcobalamin (MeCbl) and
adenosylcobalamin (AdoCbl), are important cofactors in a variety of enzymatic processes. In …

Polarized ultrafast time-resolved X-ray absorption near edge structure (XANES) allows
characterization of excited state dynamics following excitation. Excitation of vitamin B12 …

Cobalamins are of widespread importance in biology. Both of the cofactors essential for
human metabolism, the organocobalamins coenzyme B12 and methylcobalamin, are highly …

Methylcobalamin (MeCbl)-dependent enzyme methionine synthase (MetH), plays a critical
role in the catalysis of methyl group transfer from methyltetrahydrofolate (CH 3-H 4 folate) to …