Studies of indirect electrochemical reductions using chromium complexes with polyaminocarboxylate ligands as mediators

✍ Scribed by Derek Pletcher; James C.P. White

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 920 KB
• Volume: 37
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(92)80057-s

✦ Synopsis

Ah&act-The electrochermcal preparations of Cr(II)EDTA and related Cr(II) polyammocarboxylate complexes m weakly a&c, aqueous medm are described and their reations mth orgamc molecules am Lscussed It IS confirmed that the Cr(II)L complexes are strong reducmg agents capable of some mtezestmg transformations but these chenucal reactions are generally slow and, hence, an mdduect electrosynthesu would have to be carried out ex-cell with a large hol&ng tank The chtrmstry of the Cr(II)L complexes and Cr(I1) 111 chlonde and sulphate me&a are compared The extent of phase transfer of the Cr(III)L and Cr(II)L complexes mto water 1mnumble orgamc solvents by tetrabutylammomum 1on are also reported Key words Cr(II)EDTA, polyammocarboxylate complexes, mdlrect electrosynthess, phase transfer catalysis