ISSN:
1432-2234
Keywords:
Substituted polymethines
;
Energy spectrum of ∼
;
Complex substituents
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract It is shown that upon substitution of polymethines R-(CH)N-R with complex many-atom substitution R-, in the energy gap of polymethine chains (N → ∞) may arise states which are responsible for longest-wavelength transition. For certain substituents the energy of the electron transitions may be considerably lower than 1 eV, i.e. the transitions may be in the near infra-red.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00526423
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