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January 1, 1972Journal of the Chemical Society Dalton Transactions

Elimination stabilized alkyls. Part I. Chromium, molybdenum, tungsten, and vanadium

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Authors

WMW. MowatImperial College LondonASA. ShortlandGYG. YagupskyTechnion – Israel Institute of Technology

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Implication

Spectroscopic analysis demonstrates thermally stable transition metal alkyls formed with trimethylsilylmethyl reagents, indicating structural resistance to elimination pathways.

Key Points

  • Synthesize thermally stable transition metal alkyl complexes of vanadium, chromium, molybdenum, and tungsten and elucidate their molecular structures.
  • Reacted metal chlorides of vanadium, chromium, molybdenum, and tungsten with lithium or Grignard reagents derived from chloromethyltrimethylsilane.
  • Characterized the synthesized organometallic products using infrared, Raman, electronic absorption, electron spin resonance (ESR), and nuclear magnetic resonance (NMR) spectroscopy.
  • Obtained thermally stable alkyl complexes identified as V(CH2SiMe3)4, VO(CH2SiMe3)3, Cr(CH2SiMe3)4, and dimeric M2(CH2SiMe3)6 where M represents molybdenum or tungsten.
  • Assigned characteristic vibrational, electronic, and magnetic resonance spectral signatures consistent with the proposed molecular geometries.

Cite This Study

Mowat et al. (1972) studied this question.

synapsesocial.com/papers/6a83bc91ac97fff8746a9332https://doi.org/10.1039/dt9720000533
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