By S. Roth (auth.), Professor Dr. Hans Kuzmany, Professor Dr. Michael Mehring, Dr. Siegmar Roth (eds.)

At the overseas iciness university on "Electronic homes of Polymers and comparable Compounds" specific realization used to be paid to a really new and distinct box in polymer examine. it really is focused on the research of the digital constitution of polymers and with actual and chemical houses without delay re­ lated to this constitution. specifically, instructional and study contributions on electric, electrochemical, optical, magnetic, lattice dynamical and structural homes have been offered. moreover, evaluate experiences on similar subject matters akin to cost move complexes and linear-chain compounds (transi­ tion-metal trichalcogenides) have been integrated. In dialogue meEjtings, the precise position of polyacetylene and attainable current and destiny functions of the digital homes of polymers, as e.g. conductors or as electrodes in electrochemical cells, have been elucidated. The digital homes of polymers disguise quite a lot of learn difficulties that are of specific curiosity for polymers with a 1T-electron procedure. therefore, an exceptional a part of the paintings provided was once focused on conjuga­ ted structures. extra displays handled different platforms similar to bio­ polymers, photopolymers or electrets, that are of important clinical and technical value. It was once tested how their digital right­ ties are more and more being investigated from a basic viewpoint by means of using identified thoughts of snlid-state science.

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It has been subsequently studied in the CH/I3 [14] and CH/AsF [20] systems. - the 1 PI structure, in which mixed CH-dopant planes alternate with CH planes/is expected at intermediate level of doping. 06]X [19]. From the observation of a nearly homogeneous doping of (CH)x with about 6% of C104 and FeC14,it may also be realized in other systems. 6 X ray studies of highly oriented (CH)x doped with 13 and SbF6 [21], have clearly shown, as schematically illustrated by the figure 12 ,that there is i ncommensurabil ity between the acceptor (CA) and polymer (CCH) peri odi cities in chain direction ,and that no substantial transverse order exists between acceptor chains.

An immediate prediction from this model is that the conductivity in polymeric systems should be rather independent of chain length, since the electronic properties arise because of the same principles as in the low-molecular weight analogues. The missing link between the low-molecular weight organic metals and the polymers has been found in the case of the cation-radical salts of ter- and quaterphenyl (5,6). These are prepared as described for the other (arene) ~ . X- materials by anodic oxidation,and exhibit the structure predicted from Fig.

J. Phys. Soc. Japan 53, 4044 (1984) G. , Phys. Rev. B, submitted T. , Solid State Commun. 40, 563 (1981); G. Kaindl, G. Wortmann, S. Roth, K. Menke, Solid State Commun. 11, 75 (1982) J. Stohr, R. Jager, Phys. Rev. B27, 5146 (1983) and Phys. Rev. B26, 4111 (1982) W. , unpublished results T. Matsuyama, H. Yamaoka, H. Shirakawa, J. Phys. Chern. Solids 44, 1093 (1983) Recent Developments in Precursor Routes to Polyacetylene W. J. Feast, D. Parker, and J. N. C. S. P. Research Centre, Sunbury-on-Thames, Middlesex TW16 7LN 1.

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