Abstract
AbstractEmploying a time‐dependent Hartree‐Fock method, we simulate photoexcitation and the following nonlinear lattice relaxation of quasi‐one‐dimensional binuclear platinum complexes with bridging halogens. High‐energy excitations above the electron‐hole continuum tend to relax into polarons, while excitons pumped within the optical gap can be stabilized into solitons.Both neutral and charged solitons appear as stable photoproducts, which is not the case with conventional platinum‐halide chains. When a pair of kink and antikink is born out of a self‐trapped exciton and recombine to disappear, excess spin and charge densities alternate and oscillate on them. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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