Cyanide-Bridged Arrays of 2, 3 and 4 Metal Atoms Based on Salene–Iron Complexes – Syntheses, Structures and Metal–Metal Interactions

✍ Scribed by Andreas Geiß; Heinrich Vahrenkamp

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 335 KB
• Volume: 1999
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199910)1999:10<1793::aid-ejic1793>3.0.co;2-3

✦ Synopsis

Salene-Fe III complexes of the types LFeCl and [LFe(CN) 2 ] - Fe(salene)-NC-M species. Cyclic voltammetry showed that there are significant electronic interactions between the two were treated with organometallic reagents to introduce the cyanide-linked units (CO) 5 Cr, (CO) 5 Mo, (CO) 5 W, Cp(CO) 2 Fe, outer organometallic units in the trinuclear complexes. UV/Vis spectra indicated a metal-metal charge transfer from the outer Cp(dppe)Fe, and Cp(PPh 3 ) 2 Ru. IR spectra and structure determinations revealed that all resulting complexes contained Cp(dppe)Fe groups to the central Fe III . The magnetic moments at room temperature of the tri-and tetranuclear complexes are M-CN units with N coordination to the salene-Fe units. They were either dinuclear M-CN-Fe(salene), trinuclear M-CN-slightly lower than those calculated for isolated high-spin Fe III species. Fe(salene)-NC-M, or tetranuclear M-CN-Fe(salene)-