Flexibility of the Cu(110)–O structure in the presence of pyridine

Abstract

The presence of pyridine is shown by STM to have a profound effect on the structure of a Cu(110)–O surface; the spacing within the <100> directed Cu–O chains is unchanged at 3.6 Å but there is an increase in the spacing between the chains from 5.1 to 7.7 Å; the flexibility of the Cu(110)–O structure is emphasised by the observation that the change in structure is reversible when the pyridine is thermally desorbed.

References

1. A. F. Carley, A. Chambers, P. R. Davies, G. G. Mariotti, R. Kurian and M. W. Roberts, Faraday Discuss., 1996, 105, 225.
2. M. W. Roberts, Surf. Sci., 1994, 300, 769.
3. C. T. Au and M. W. Roberts, J. Chem. Soc., Faraday Trans. 1, 1987, 83, 2047.
4. M. W. Roberts, Chem. Soc. Rev., 1996, 25, 437.
5. P. R. Davies and N. Shukla, Surf. Sci., 1995, 322, 8.
6. F. Jensen, F. Besenbacher and I. Stensgaard, Surf. Sci., 1992, 270, 400.
7. J. Wintterlin, R. Schuster, D. J. Coulman, G. Ertl and R. J. Behm, J. Vac. Sci. Technol. B, 1991, 9, 902.
8. F. Jensen, F. Besenbacher, E. Laesgaard and I. Stensgaard, Phys. Rev. B. Condens. Matter, 1990, 41, 10233.
9. A. F. Carley, P. R. Davies, G. U. Kulkarni and M. W. Roberts, Catal. Lett., 1999, in press.