Coordination-based symmetric and asymmetric bilayers on gold surfaces

Chemistry - A European Journal

Volumn 4, Issue 3, 1998, Pages 502-507

  Moav, Tamar ^a   Hatzor, Anat ^a   Cohen, Hagai ^a   Libman, Jacqueline ^a   Rubinstein, Israel ^a   Shanzer, Abraham ^a  

^a WEIZMANN INSTITUTE OF SCIENCE   (Israel)

Author keywords

Gold; Hydoxamates; Layered compouds; Self assembly; Transition metals

Indexed keywords

EID: 0000429959     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/(sici)1521-3765(19980310)4:3<502::aid-chem502>3.0.co;2-b     Document Type: Article

References (27)

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2. See, for example: a) R. H. Tredgold, Order in Thin Organic Films, Cambridge University Press, Cambridge, 1994, pp. 116-134; b) A. N. Parikh, B. Liedberg, S. V. Atre, M. Ho, D. L. Allara, J. Phys. Chem. 1995, 99, 9996; c) H. O. Finklea, in Electroanalytical Chemistry, Vol. 19 (Eds.: A. J. Bard, I. Rubinstein), Marcel Dekker, New York. 1996.
3. See, for example: a) R. H. Tredgold, Order in Thin Organic Films, Cambridge University Press, Cambridge, 1994, pp. 116-134; b) A. N. Parikh, B. Liedberg, S. V. Atre, M. Ho, D. L. Allara, J. Phys. Chem. 1995, 99, 9996; c) H. O. Finklea, in Electroanalytical Chemistry, Vol. 19 (Eds.: A. J. Bard, I. Rubinstein), Marcel Dekker, New York. 1996.
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12. IV) are well documented; see: d) W. L. Steffen, R. C. Fay, Inorg. Chem. 1978, 17, 779.
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14. IV) are well documented; see: d) W. L. Steffen, R. C. Fay, Inorg. Chem. 1978, 17, 779.
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16. The terms symmetric and asymmetric relate to bilayers composed of two identical or two different ion-binding molecules, respectively.
17. f,-0 (ref. [13]).
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19. Comparison of apparent monolayer thicknesses calculated from the XPS results (not shown) and the ellipsometric thicknesses (Table 1) suggests that the metal ions have a substantial effect on photoelectron attenuation. This intriguing phenomenon, which is beyond the scope of this paper, is currently being investigated.
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22. The low concentration of the metal ions allows only qualitative determination.
23. These thicknesses are an average of results from three experiments. In all cases the thickness after bilayer reconstruction was somewhat higher than that of the original bilayer. Although the reason for this increase is not yet clear, it may suggest better organization after reconstruction.
24. Coordination-based multilayers were formed by stepwise assembly with tetrahydroxamates as repeat units. Multilayers comprising up to 20 layers were obtained; preliminary characterization (by electron diffraction and scanning probe techniques) suggests a high degree of order.
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