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- W1811005384 abstract "Atomistic theoretical descriptions of thermal chemical recations in complex environments are well achieved by combined quantum and molecular mechanical (QM/MM) methods. The goal of this work is to extend such techniques to enable the description of photochemical reactions and to carry out case studies subsequently. In order to tackle the enormous computational demand due to the involvement of excited electronic states, we (i) largely speed up the individually selecting multi-refernce configuration interaction (IS/MRCI) scheme by Tavan and Schulten (1980) by a new grahical algorithm and (ii) take use of recently developed semimempirical valence shell models (Thiel 1997) which are well suited for excited electronic states.The efficiency and accuracy of the resulting IS/MRCI-algorithm is demonstrated by its application to the first electronic excited states of butadiene. The new QM/MM method is used to calculate absorption energies along a molecular dynamics trajectory of a small Schiff base in isotonic solution." @default.
- W1811005384 created "2016-06-24" @default.
- W1811005384 creator A5054645284 @default.
- W1811005384 date "2003-07-04" @default.
- W1811005384 modified "2023-09-27" @default.
- W1811005384 title "Beschreibung angeregter Molekülzustände in komplex strukturierter Umgebung durch einen effizienten, individuell selektierenden MRCI-Algorithmus gekoppelt an ein molekularmechanisches Kraftfeld" @default.
- W1811005384 hasPublicationYear "2003" @default.
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