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Chemical analogues relevant to molybdenum and tungsten enzyme reaction centres toward structural dynamics and reaction diversity.

Chemical Society reviews (2008-11-21)
Hideki Sugimoto, Hiroshi Tsukube
ABSTRACT

Recent characterisation of molybdenum and tungsten enzymes revealed novel structural types of reaction centres, as well as providing new subjects of interest as synthetic chemical analogues. This tutorial review highlights the structure/reactivity relationships of the enzyme reaction centres and chemical analogues. Chemical analogues for the oxygen atom transfer enzymes have been well expanded in structure and reactivity. Other types of chemical analogues that exhibit different coordination chemistry have recently been presented for reaction centres of the hydroxylation and dehydrogenation enzymes and others.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Molybdenum, powder, <150 μm, 99.9% trace metals basis
Sigma-Aldrich
Tungsten, powder, 10 μm, ≥99.99% trace metals basis
Sigma-Aldrich
Molybdenum, powder, 1-5 μm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, foil, thickness 0.1 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Tungsten, powder, 12 μm, 99.9% trace metals basis
Sigma-Aldrich
Tungsten, wire, diam. 0.25 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, powder, <150 μm, 99.99% trace metals basis
Sigma-Aldrich
Molybdenum, foil, thickness 0.025 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Tungsten, foil, thickness 0.05 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, nanopowder, <100 nm particle size (TEM), 99.8% trace metals basis
Sigma-Aldrich
Tungsten, foil, thickness 0.127 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, wire, diam. 1.0 mm, 99.95% trace metals basis
Sigma-Aldrich
Tungsten, foil, thickness 0.25 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, foil, thickness 1.0 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Tungsten, foil, thickness 0.5 mm, ≥99.9% trace metals basis
Tungsten, wire reel, 5m, diameter 0.005mm, gold plated, 99.95%
Tungsten, wire reel, 25m, diameter 0.05mm, clean, 99.95%
Tungsten, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.95%
Tungsten, wire, straight, 300mm, diameter 0.10mm, 99.9+%
Tungsten, wire reel, 5m, diameter 0.125mm, clean, 99.95%
Tungsten, wire reel, 20m, diameter 1.0mm, clean, 99.95%
Molybdenum, rod, 100mm, diameter 15.0mm, centerless ground, 99.9%
Tungsten, wire reel, 25m, diameter 0.1mm, clean, 99.95%
Tungsten, rod, 100mm, diameter 1.6mm, centerless ground, 99.95%
Molybdenum, foil, 150x150mm, thickness 0.20mm, annealed, 99.9%
Molybdenum, wire reel, 100m, diameter 0.025mm, hard, 99.95%
Molybdenum, wire reel, 10m, diameter 0.05mm, annealed, 99.95%
Tungsten, wire reel, 5m, diameter 0.25mm, clean, 99.95%
Molybdenum, foil, 6mm disks, thickness 0.5mm, annealed, 99.9%
Molybdenum, foil, 6mm disks, thickness 0.75mm, annealed, 99.9%