Electronic excitations of polyalanine; test of the independent chromophore approximation
文献情報
Sanford A. Asher
Optical spectra of polyalanine in the W(nπ*) and NV1(ππ*) bands are calculated using the time-dependent Hartree–Fock technique and the INDO/S Hamiltonian. Examination of the transition density matrices shows that excitations in the NV1 band involve significant charge transfer between nearest and third-nearest neighbor amide groups. Our analysis suggests that the Frenkel exciton Hamiltonian cannot adequately describe the electronic excitations in the NV1 band.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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