Skip to main content

Bridged Macrocyclic Transition Metal Complexes, a New Type of Semiconducting Materials

  • Michael Hanack (a1), A. Hirsch (a1), A. Lange (a1), M. Rein (a1), G. Renz (a1) and P. Vermehren (a1)...

Bridged quasi onedimensional macrocyclic transition metal complexes [MacM(L)]n using phthalocyanine (Pc), tetrabenzoporphyrine (TBP), 1,2 -and 2,3-naphthalocyanines (1,2-; 2,3-Nc) as macrocycles (Mac) with M = e.g. Fe, Ru, Co and L = e.g. pyrazine (pyz), 1,4-diisocyanobenzene (dib), tetrazine (tz) exhibit interesting electrical properties. Regardless of the size of the bridging ligand after either chemical or electrochemical doping stable semiconducting compounds [MacM(L)Xy]n (X = e.g. I, BF4-, CIO4-…) are formed. For the first time the complete characterization of a soluble oligomer [MacM(L)]n (Mac = R4PC, M = Ru, L = dib) by 1H-NMR spectroscopy is reported. Some of these shish kebab complexes e.g. [PcM(tz)]n, (M = Fe, Ru) or [MacMCN]n; (Mac = Pc, TBP; M = Co, Fe) exhibit good semiconducting properties without additional external doping. Whether or not these compounds are intrinsic semiconductors will be discussed. The synthesis of oligomeric bridged mixed valence compounds [PcM3+LPсM2+L]n (M = e.g. Fe) is another target of our work. We report here about first attempts to synthesize these oligomers.

Hide All
[1] Hanack, M., Chimia 37, 238 (1983;
Hanack, M., Datz, A., Fay, R., Fischer, K., Keppeler, U., Koch, J., Metz, J., Mezger, M., Schneider, O. and Schulze, H.-J. in Skotheim, T. (ed.), Handbook onConducting Polymers, Marcel Dekker, New York 1985.
[2] Keppeler, U. and Hanack, M., Chem. Ber. 119, 3363 (1986).
[3] Hanack, M., Keppeler, U. and Schulze, H.-J., Synth. Met. 20, 347 (1987).
[4] Diel, B.N., Inabe, T., Jaggi, K.K., Lyding, J.W., Schneider, O., Hanack, M.,Kannewurf, C.R., Marks, T.J. and Schwartz, C.H., J. Am. Chem. Soc. 106, 3207(1984).
[5] Keppeler, U., Deger, S., Lange, A. and Hanack, M., Angew. Chem. 99, 349 (1987).
[6] Lange, A. and Hanack, M., unpublished.
[7] Lange, A., Keppeler, U. and Hanack, M., Inorg. Chem., in press.
[8] Canadell, E. and Alvarez, S., Inorg. Chem. 23, 573 (1984).
[9] Metz, J., Hanack, M., J. Am. Chem. Soc. 105, 828 (1983).
[10] Schwartz, M., Hatfield, W.E., Joestein, M.D., Hanack, M., Datz, A., Inorg. Chem. 24, 4198 (1985).
[11] Hanack, M., Hedtmann-Rein, C., Datz, A., Keppeler, U., Münz, X., Synth. Met. 19, 787 (1987).
[12] Hedtmann-Rein, C., Hanack, M., Peters, K., Peters, E.-M., Schnering, H.G. v., Inorg. Chem. 26, 2647 (1987).
[13] Hanack, M., Brokken, J., Peters, K., Acta Cryst., in press.
[14] Creutz, C., Prog. Inorg. Chem. 30, 1 (1983).
[15] Calderazzo, F., Frediani, S., James, B.R., Pampaloni, G., Remier, K.J., Sams, J.R., Serra, A.M., Vitali, D., Inorg. Chem. 21, 2302 (1982).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 2 *
Loading metrics...

Abstract views

Total abstract views: 59 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 16th August 2018. This data will be updated every 24 hours.