In:
Israel Journal of Chemistry, Wiley, Vol. 27, No. 4 ( 1986-01), p. 337-346
Abstract:
Small molecule spectroscopy on M(Pc)(OR) 2 and ROM(Pc)OM(Pc)OR molecular fragments (M = Si, Ge; Pc = phthalocyaninato) of the conductive polymer [M(Pc p+ )O] n provides a unique probe of the band structure‐forming π‐π interactions. We describe here the synthesis and characterization of the M = Ge monomer and dimer where R = ( t ‐Bu)Me 2 Si‐. The lowest energy He I photoelectron spectroscopic feature of the dimer is a doublet with a splitting of 0.19(3) eV. This splitting can be associated with the cofacial HOMO‐HOMO Pc‐Pc interaction and translates into a tight‐binding bandwidth in the polymer of 0.38(6) eV. This result is in good agreement with an experimental bandwidth of 0.48(5) eV obtained from a Drude analysis of the {[Ge(Pc)0]I 1.1 } n reflectance spectrum and a bandwidth of 0.50 eV derived from theoretical calculations.
Type of Medium:
Online Resource
ISSN:
0021-2148
,
1869-5868
DOI:
10.1002/ijch.198600052
Language:
English
Publisher:
Wiley
Publication Date:
1986
detail.hit.zdb_id:
2066481-3
