Ab initio applied computing is used to determine the viability of a plausible mechanism for
the formation of riboflavin from planetary and interstellar gases that contain the necessary …

The planetary molecules cyanogen, cyanoacetylene, hydrogen cyanide, ammonia, and
carbon monoxide and hydrogen are invoked in a synthesis of the pteridine precursor of the …

A set of chemical reactions is proposed to account for the formation of pyridoxal phosphate,
Vitamin B6, from a primeval atmosphere composed of cyanoacetylene, diacetylene, carbon …

The magnesium ion metalloporphyrin complex is shown to bind the ligands propyne nitrile
and propynimine in weak van der Waals complexes on the metal and nitrogen sites. Further …

The four stereospecific pyrroline derivatives present in the corrin structure of Vitamin B12
may be oligomerized to form a corrin structure or a porphin structure. The analogous porphin …

Theoretical chemistry is applied to describe in detail the formation of reactive intermediates
in a primeval atmosphere composed of hydrogen, carbon monoxide and ammonia that at a …

The cofactor riboflavin is biochemically synthesized by a constitutionally intricate process in
which two molecules of 6, 7-dimethyl-8-ribityllumazine react with each other to form one …

The magnesium ion metalloporphyrin complex is shown to bind the ligand diacetylene in a
weak van der Waals complex which may further react with carbodiimide, an isomer of …

Alkynes such as but-2-ynimine and but-2-yne nitrile form weak charge-transfer complexes
with catalysts such as Mg. porphin centered on the Mg++ ion and a pyrrole nitrogen. With …

With the continuously increasing power of computers, quantum chemistry is becoming a
valuable theoretical tool in enzyme research. Molecules as large as flavins can now be …