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Modeling the extent of conjugation in histochemical dyes and fluorescent probes: clarification in calculating conjugated bond number (CBN) and introduction of a new parameter, resonance energy

Biotechnic & Histochemistry, 2023
Determining the extent of conjugation in dyes and fluorochromes is a helpful tool for understanding or predicting the behavior of these compounds when used as stains for microscopy. One measure that has been used repeatedly is conjugated bond number (CBN), which is the number of bonds in a conjugated system.
Richard W. Dapson, Richard W. Horobin
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Compatibility of the Methods of Calculation and Semiempirical Parameters in the Theory of Molecules with Conjugated Bonds

Russian Chemical Reviews, 1975
Various methods for the selection of the parameters of the model π-electron Hamiltonian are discussed, certain aspects of the interaction of π electrons with the σ skeleton are considered, and the scope of various methods for the calculation of the electronic structures of molecules and radicals with conjugated bonds are analysed.
I A Misurkin, Aleksandr A Ovchinnikov
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Effect of semi‐empirical parameters on the simple random‐phase approximation calculations of conjugated hydrocarbons

International Journal of Quantum Chemistry, 1977
AbstractSinglet‐singlet transition energies, oscillator strengths, triplet energy levels, and the ground state correlation energy of a number of conjugated hydrocarbons have been calculated by the simple random‐phase approximation (RPA) within the framework of the Pariser‐Parr‐Pople (PPP) model.
B. Guha Niyogi   +2 more
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