Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Photoreactivity of $ReH_5$(Cyttp) (Cyttp=Php$(CH_2CH_2CH_2PCy_2)_2)$ with CO, $CO_2\;and\;PMe_3$

  • Lee, Myung-Young (Department of Chemistry, College of Natural Science, Dankook University) ;
  • Shin, Dae-Ho (Korea Basic Science Center) ;
  • Kim, You-Hyuk (Department of Chemistry, College of Natural Science, Dankook University)
  • Published : 1994.07.20
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Abstract

The photoreactions of $ReH_5(Cyttp)\;(1)\;(Cyttp=PhP(CH_2CH_2CH_2PCy_2)_2)\;with\;CO,\;CO_2\;and\;PMe_3 has been investigated to find the differences in reactivities from those of trismonophosphine analog. Irradiation of 1 under CO, $CO_2$ and excess $PMe_3$ in benzene results in the formation of the complexes, $ReH(CO)_2(Cyttp)\;(2),\;ReH_2({\eta}^2-HCO_2)(Cyttp)\;(3)\;and\;$ReH_3(PMe_3)(Cyttp)$ (4), respectively. The resulting products suggest that photoreactions of $ReH_5(Cyttp)$ proceed by photoextrusion of $H_2$ giving a phototransient species "$ReH_3$(Cyttp)" which can be trapped by CO, $CO_2\;and\;PMe_3$. The structures of 2, 3 and 4 are inferred based on $^1H,\;^{31}P$ NMR and I. R spectroscopy.

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References

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