We report the observation of two Fe-doped boron clusters with wheel-type structures, containing an octa-coordinate (C8v-Fe B8 ) and a nona-coordinate (D9h-Fe B9 ) Fe atom. The clusters were produced in a laser vaporization supersonic molecular beam and characterized by combined photoelectron spectroscopy and ab initio studies. Chemical bonding analyses revealed that in the ground state both clu...

Folates are soluble B9 vitamins with essential functions in all kingdoms of life—both in organisms that produce these vitamins de novo (fungi, plants, and most microorganisms) and in those that do not (animals). As essential cofactors in one-carbon transfers, different folate species mediate the biosynthesis of multiple biomolecules, including nucleic acids, amino acids, and lipids. Folates als...

The structures of the MnB9 cluster have been investigated by theoretical calculations. combination genetic algorithm and density functional theory calculations (GA-DFT) find out seventeen minimum structures, including local global structure. can be formed adding an Mn atom into B9 cluster. There is also a strong interaction between H2 molecule resulting in expansion or dissociation H-H bond. Th...

The B-vitamins include thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), the B6 complex (pyridoxal, pyridoxamine, pyridoxine), biotin (B8 or Vitamin H), folic acid (B9), and B12. Each of the B-vitamins plays a key role as either an enzymatic cofactor or metabolic constituent in many facets of intermediary metabolism. For example, about half of the propionate that reaches the ru...

1 School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine, BT52 1SA, UK 2 Siena Eye Laser, 53035 Monteriggioni, Siena, Italy 3 Emmetropia Mediterranean Eye Institute, Plateia Eleytherias 44, 71201, Heraklion, Crete, Greece 4 School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK 5 Midland Eye Institute, 50 Lode Lane, Solihull, West Midlan...