Nitrogenases are responsible for biological nitrogen fixation, a crucial step in the
biogeochemical nitrogen cycle. These enzymes utilize a two-component protein system and …

Transition metal–sulfur (M–S) compounds are an indispensable means for biological
systems to convert N2 into NH3 (biological N2 fixation), and these may have emerged by …

Vanadium is a trace element, which may be beneficial and possibly essential in humans1
but certainly essential for some living organisms. 2r11 Metal ions and thus vanadium ions …

Nitrogenase is a complex enzyme that catalyzes the formation of ammonia utilizing a
MoFe7S9C cluster. The presence of a central carbon atom was recently revealed, finally …

The past few years have witnessed an ever-increasing interest in the chemistry of
compounds that contain two or more metal centers. A wide variety of transition metal cluster …

Among the more compelling challenges in the synthetic analogue approach to
metalloprotein active sites is the construction of metal clusters that are meaningful …

The first comprehensive resource on the chemistry of vanadium, Vanadium: Chemistry,
Biochemistry, Pharmacology, and Practical Applications has evolved from over a quarter …

Publisher Summary This chapter discusses some of the most significant recent findings and
unusual properties of native and synthetic Fe 4 S 4 clusters. Certain properties lead to newer …

An investigation of the active site cofactors of the molybdenum and vanadium nitrogenases
(FeMoco and FeVco) was performed using high-resolution X-ray spectroscopy. Synthetic …

Biological nitrogen fixation is enabled by molybdenum-dependent nitrogenase enzymes,
which effect the reduction of dinitrogen to ammonia using an Fe 7 MoS 9 C active site …