摘要: A combination of a Knudsen cell and mass spectrometric analysis the effusing vapor has been used to study gaseous species in equilibrium with Cu(l), Ag(l), Au(l). From observed ratios monomer dimer following dissociation energies have calculated D00(Cu2)=2.21±0.11 ev,D00(Ag2)=1.78±0.10 ev,D00(Au2)=2.30±0.12 ev. Upper limits for abundances trimers tetramers are given. Combining pressure accepted values heats sublimation monomers, dimers at 0°K obtained. L(Cu2)=110±4 kcal,L(Ag2)= 95±4 kcal,L(Au2)=118±5 kcal.
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