Photochemistry of Bis(diphenylphosphino)ethane hydride complexes of iron

✍ Scribed by A. Maldotti; S. Sostero; O. Traverso; J. Šima

• Book ID: 104138115
• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 203 KB
• Volume: 54
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)95458-6

✦ Synopsis

The phoochemistry of transition-metal hydride complexes has recently attracted considerable attention [l] commensurate with their importance in many transition-metal-assisted or -catalyzed organic transformations.

Photoinduced elimination of molecular hydrogen seems to be a general reaction for diand poly-hydride complexes of the transition elements [2, 31. Photochemical reactions of this type may have considerable potential for hydrogen and energy storage and the present study has been undertaken in order to define the mechanism of dehydrogenation more precisely. This paper reports the photochemistry of [Fe(DPPE)aHCl] and [Fe(DPPE)2Ha] (DPPE = bis(diphenylphosphino)ethane) complexes. Reductive elimination of HCl and HZ occurs upon ultraviolet irradiation and the formation of the highly reactive intermediate [Fe(DPPE)a] is observed.