caa a22 4500 465808018 CHVBK 20180323112108.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00943885 doi (NATIONALLICENCE)springer-10.1007/BF00943885 Comparative investigation of the intramolecular interaction of the chromophores in diketones and dihydroxydicarbonium and dicarbonium ions [Elektronische Daten] [V. Chuev, V. Nikitchenko] The intramolecular interaction of the chromophores in the systems of the dichalcone (I) and its dihydroxydicarbonium (II) and dicarbonium (III) ions with the general formula $$CH_3 O---C_6 H_4 ---CH = CH---X---C_6 H_4 ---O---C_6 H_4 ---X---CH = CH---C_6 H_4 ---R,$$ where X=-CO-(I), $$---\mathop C\limits^ + (OH)---$$ (II), and $$---\mathop C\limits^ + H---$$ (III), was studied. It was shown that the "splitting” of the long-wave maximum, both experimentally observed and theoretically calculated, increases in the order I, II, III. This is due to the corresponding change in the dipole-dipole and resonance interaction of the chromophores. Plenum Publishing Corporation, 1990 Chuev V. Khar'kov University, USSR aut Nikitchenko V. Khar'kov University, USSR aut Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 26/1(1990-01-01), 78-81 0040-5760 26:1<78 1990 26 11237 https://doi.org/10.1007/BF00943885 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00943885 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chuev V. Khar'kov University, USSR aut NATIONALLICENCE 700 1- Nikitchenko V. Khar'kov University, USSR aut NATIONALLICENCE 773 0- Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 26/1(1990-01-01), 78-81 0040-5760 26:1<78 1990 26 11237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer