Expeditious access to the most easily ionized closed-shell molecule, W 2(hpp)4

F. Albert Cotton, James P. Donahue, Dennis L. Lichtenberger, Carlos A. Murillo, Dino Villagrán

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


A new synthetic path, far superior to either of those previously available, to the W2(hpp)4 molecule (Hhpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine) is reported. The reaction of W(CO)6 with Hhpp in o-dichlorobenzene at 200 °C produces W2(hpp)4Cl2 in a one-pot reaction in over 90% yield. This compound is stable and easily stored for further use, and it can be efficiently reduced in a one-step reaction to the title compound W2(hpp)4.

Original languageEnglish (US)
Pages (from-to)10808-10809
Number of pages2
JournalJournal of the American Chemical Society
Issue number31
StatePublished - Aug 10 2005

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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