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|Title:||Dendritic porphyrins: synthesis and third-order optical non-linearity|
|Publisher:||JOHN WILEY & SONS LTD|
|Citation:||JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 4(7), 659-664|
|Abstract:||First- and second-generation dendritic porphyrins were synthesized by cascade polymer methodology. The second molecular hyperpolarizabilities (gamma) of these dendritic porphyrins as well as 5,10,15,20-tetraphenylporphyrin were measured by the Z-scan technique at 800 nm using a mode-locked Ti:sapphire laser. The relationship between the various structures and their corresponding second molecular hyperpolarizabilities are explained on the basis of the oscillator strength of the Q band and the increasingly electron-rich microenvironment created by the dendritic branches around the porphyrin core. Copyright (C) 2000 , Ltd.|
|Appears in Collections:||Article|
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