Monomethine cyanines rigidized by a two-carbon chain

Details Monomethine cyanines rigidized by a two-carbon chain Monomethine cyanines rigidized by a two-carbon chain

1995-06-07

1999-11-16

Shah, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D24300, C07D48722, C07D49100, C07D49800

Patent

active

059860936

ABSTRACT:
Fluorescent monomethine cyanine complexes rigidized by a two-carbon alkyl group between the nitrogen's of the cyanine's heterocycles are provided and have the structure ##STR1## wherein R.sub.1 through R.sub.7 represent various selected groups or ring structures that may be chosen to provide desired solubility, reactive, or spectral properties.

REFERENCES:
McEwen, C. Field desorption and electron impact mass spectra of ionic dyes. Anal. Chem. vol. 49(7) 922-926, Jun. 1977.
D.M. Sturmer and W.S. Gaugh, "Spectral Sensitization by Sterically Hindered Chromophores", Photographic Science and Engineering, vol. 19, No. 5 (Sep.-Oct. 1975), pp. 273-278.
T. Ramos et al., "Crystal and molecular structure of 6-Phenyl-13H-pyrimido [4,3-6: 6, 1 --b] bis-benzothiazolium-12 trliodide," J. Crystallographic and Spectroscopic Research, vol. 21, No. 2 (Apr. 1991), pp. 179-182.
G. Scheibe et al., "Das Franck-condon-Prinzip und die Lichtabsorpotion von Merocyaninen", Z. physik, Chem. Neue Folge, Bd. 64, S. 97-114 (1969).

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