TUngsten complexes electrochemistry

The electrosynthesis of hydride complexes directly from molecular hydrogen at atmospheric pressure by reduction of Mo(II) and W(II) tertiary phosphine precursors in moderate yield has been described as also the electrosynthesis of trihydride complexes of these metals by reduction of M(IV) dihydride precursors [101,102]. Hydrogen evolution at the active site of molybdenum nitrogenases [103] is intimately linked with biological nitrogen fixation and the electrochemistry of certain well-defined mononuclear molybdenum and tungsten hydrido species has been discussed in this context [104,105]. 

Data on the redox potentials of germylenes, stannylenes, plumbylenes and their complexes are scarce. In fact, only the electrochemistry of dihalogermylenes, dihalostan-nylenes and their complexes with Lewis bases338 as well as with chromium, molybdenum and tungsten pentacarbonyles339 has been studied. 

CHEMISTRY AND ELECTROCHEMISTRY OF ALKYNE- AND ISOCYANIDE-DERIVED CARBYNE COMPLEXES OF RHENIUM, MOLYBDENUM OR TUNGSTEN... 

Porphyrins with all of the Group 6 metals have been investigated as to their electrochemistry, but most data have been obtained for the Cr and Mo complexes [7]. The only porphyrins with a tungsten metal ion whose electrochemistry has been reported are the oxo/hydroxo derivatives (P)WO(OH) [52, 142]. Both metal and ring-centered processes are observed upon reduction of these W(V) porphyrins, and a similar electrochemical behavior has generally been reported for most Cr(V)... 

Dinitrogen binding and electrochemistry in complexes of molybdenum and tungsten... 

LOU TEMPERATURE ELECTROCHEMISTRY AND SPECTROELECTROCHENISTRY OF CATALYTICALLY IMPORTANT TUNGSTEN(O) COMPLEXES... 

Low Temperature Electrochemistry and Spectroelectrochemistry of Catalytically Important Tungsten(0) Complexes M. Wlgodd. T. Szymanska-Buzar. M. JaroszewsM and J.J. Zolkowski... 

The application of electrochemistry to the investigation of new organometallic molecules is illustrated in this contribution on two groups of recently synthesized Fischer-type aminocarbene complexes of chromium, tungsten, and iron involving about 40 derivatives. All of them represent molecules with two separated redox-active centers where the extent of their interaction (mutual influence) is given by the electron delocalization of the bridging unit, by the distance between the centers and/or by sterical effects. 

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