Pyrilocyanines. 24. Symmetrical tetra-tert-butyl substituted pyrilo-2-cyanines

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Chem. Heterocycl. Compd. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00486905· OSTI ID:6975071

Kurdyukov, V V; Ishchenko, A A; Kudinova, M A; Tolmachev, A I

2,4-di-tert-butyl-6-methylpyrilium and -thiopyrilium salts were synthesized. From them were obtained symmetrical tetra-tert-butyl substituted ..cap alpha..-pyrilocarbo- and dicarbocyanines and their sulfur analogs. The ..cap alpha..-pyrilocyanines were converted to symmetrical ..cap alpha..-pyridocyanines. The effects of heteroresidue structure, length of polymethine chain, and solvent on the location and shape of the absorption bands of these dyes were studied. Their experimental spectral properties were compared with the results of quantum chemical calculations of average band location, second-power changes of bond order upon excitation, and theoretical electron donor capabilities.

• Research Organization: Institute of Organic Chemistry, Kiev (USSR)
• OSTI ID: 6975071
• Journal Information: Chem. Heterocycl. Compd. (Engl. Transl.); (United States), Journal Name: Chem. Heterocycl. Compd. (Engl. Transl.); (United States) Vol. 23:6; ISSN CHCCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
ATOMIC MODELS
BINDING ENERGY
CHEMICAL SHIFT
CYANINE DYES
DYES
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
EXCITED STATES
FERMIONS
GROUND STATES
HETEROCYCLIC COMPOUNDS
LEPTONS
MATHEMATICAL MODELS
MECHANICS
METHYLENE CHLORIDE
MOLECULAR STRUCTURE
NMR SPECTRA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTUM MECHANICS
SPECTRA
SYNTHESIS
VALENCE