Electron Affinities and Gas-Phase Acidities of Organogermanium and Organotin Compounds

Elizabeth A. Brinkman, Karen Salomon, William Tumas, John I. Brauman

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The electron affinities have been measured for trimethylgermanium and trimethyltin radicals as 31.9 ± 0.7 and 39.2 ± 1.5 kcal/mol, respectively, using electron photodetachment spectroscopy. The acidities (ΔH°acid) for the corresponding hydrides (Me3GeH and Me3SnH) have been bracketed as 361.5 ± 2.8 and 349 ± 2 kcal/mol. From the electron affinities and the acidities, the D°(Me3MH) are derived as 79.8 ± 3.5 and 75 ± 3.5 kcal/mol, respectively. These physical properties are compared with the properties of the group IVA through group VIIA binary hydrides and methyl-substituted compounds. The electron affinities of the group IVA compounds do not conform to the regular pattern; some of the reasons for this are discussed.

Original languageEnglish
Pages (from-to)4905-4910
Number of pages6
JournalJournal of the American Chemical Society
Issue number17
Publication statusPublished - May 1995

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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