caa a22 4500 469056657 CHVBK 20180323132845.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1163/156856792X00119 doi (NATIONALLICENCE)springer-10.1163/156856792X00119 The effett of medium on cidnp kinetics in geminate recombination of biradicals. Experiment and calculation [Elektronische Daten] [A. Yurkovskaya, Yu. Tsentalovich, N. Lukzen, R. Sagdeev] Submicrosecond flash-CIDNP was used to study the dependences of the kinetics and amplitude of CIDNP, arising in biradicals produced in the photolysis of cyclic aliphatic ketones on the temperature and viscosity of the medium. It has been found that for biradicals the geminate CIDNP increases with the diffusion coefficient of the medium. The theoretical consideration of geminate recombinaiion kinetics is based on the numerical solution of the stochastic Liouville equation for the Fourier transform of the spin density matrix. The dependences of nuclear polarization on the lifetime of the triplet state of initial ketone, on electronic paramagnetic relaxation times, on scavenging rate, and on exchange interaction have been analyzed and compared with erperimental data. The conditions of quantum beats manifestaiion in CIDNP kinetics have been considered theoretically. Springer, 1992 Yurkovskaya A. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut Tsentalovich Yu Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut Lukzen N. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut Sagdeev R. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut Research on Chemical Intermediates Springer Netherlands 17/2(1992-06-01), 145-171 0922-6168 17:2<145 1992 17 11164 https://doi.org/10.1163/156856792X00119 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1163/156856792X00119 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yurkovskaya A. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Tsentalovich Yu Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Lukzen N. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Sagdeev R. Institute of Chemical Kinetics and Combustion and International Tomographic Centre, Institutskaya str. 3, 630090, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Research on Chemical Intermediates Springer Netherlands 17/2(1992-06-01), 145-171 0922-6168 17:2<145 1992 17 11164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer