Synthesis, Characterization, and Crystal Structure of Germyl(phosphine)iron Complexes, Cp(CO)Fe(PPh₃)(GeR₃) (R = Et, ⁿBu, Ph), Prepared from Cp(CO)Fe(PPh₃)(Me) and HGeR₃

Abstract

Photoreaction of Cp(CO)₂Fe(Me) (Cp stands for η⁵-cyclopentadienyl) with PPh₃ afforded Cp(CO)Fe(PPh₃)(Me). Reaction of the methyl iron complex with HGeR₃ (R = Et, ⁿBu, Ph) produced Cp(CO)Fe(PPh₃)(GeR₃) (R = Et: 1, ⁿBu: 2, Ph: 3). All new complexes were fully characterized using ¹H, ¹³C{¹H}, and ³¹P{¹H} NMR measurements and elemental analyses. Furthermore, the structure of 3 was determined using single crystal X-ray analysis.

Keywords:

• Crystal structure
• iron
• hydrogermane
• phosphine
• photolysis

Acknowledgments

Dedicated to Professor Naomichi Furukawa on the occasion of his 70th birthday.

This work was supported by a Grant-in-Aid for Science Research on Priority Areas (No. 20036043, Synergistic Effect of Elements) and by a Grant-in-Aid for Young Scientists (B) (No. 20750049) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. We also acknowledge support from the Daicel Chemical Industries, Ltd. Award in Synthetic Organic Chemistry, Japan, and the Kinki-chiho-hatsumei-center.