Reaction of Zn+ with N02. The gas-phase thermochemistry of ZnO
نویسندگان
چکیده
The homolytic bond dissociation energies of ZnO and ZnO + have been determined by using guided ion-beam mass spectrometry to measure the kinetic-energy dependence of the endothermic reactions of Zn + with nitrogen dioxide. The data are interpreted to yield the bond energy for ZnO, D g = 1.61 t 0.04 eV, a value considerably lower than previous experimental values, but in much better agreement with theoretical calculations. We also obtain D g (ZnO + ) = 1.67 k 0.05 eV, in good agreement with previous results. Other thermochemistry derived in this study is D i (Zn +-NO) = 0.79 f 0.10 eV and the ionization energies, IE( ZnO) = 9.34 + 0.02 eV and IE( NO, ) = 9.57 + 0.04 eV.
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تاریخ انتشار 1999