caa a22 4500 465808131 CHVBK 20180323112108.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00641335 doi (NATIONALLICENCE)springer-10.1007/BF00641335 Principles of molecular design of binuclear polymethine systems [Elektronische Daten] [M. Ushomirskii, E. Lifshits] The electronic nature of reaction centers of reactants in the formation of polymethine compounds has been analyzed, and it has been established that the polymethine structures, depending on the combination of parity of the external polymethine chain and the signs of the electron-donor strength of the terminal heterocyclic nuclei, can be divided into two classes: classical polymethine dyes and generalized Hünig systems. In the generalized Hünig systems, the dependence of the charge distribution and bond orders in the polymethine chain on the difference in basicities of the terminal nuclei should be the opposite of the known relationships in a number of classical polymethine dyes. Plenum Publishing Corporation, 1990 Ushomirskii M. All-Union State Scientific-Research and Design Institute of the Photographic Chemicals Industry, Moscow aut Lifshits E. All-Union State Scientific-Research and Design Institute of the Photographic Chemicals Industry, Moscow aut Theoretical and Experimental Chemistry Kluwer Academic Publishers 26/3(1990-05-01), 286-293 0040-5760 26:3<286 1990 26 11237 https://doi.org/10.1007/BF00641335 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00641335 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ushomirskii M. All-Union State Scientific-Research and Design Institute of the Photographic Chemicals Industry, Moscow aut NATIONALLICENCE 700 1- Lifshits E. All-Union State Scientific-Research and Design Institute of the Photographic Chemicals Industry, Moscow aut NATIONALLICENCE 773 0- Theoretical and Experimental Chemistry Kluwer Academic Publishers 26/3(1990-05-01), 286-293 0040-5760 26:3<286 1990 26 11237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer