Steps to Demarcate the Effects of Chromophore Aggregation and Planarization in Poly (phenyleneethynylene) s. 2. The Photophysics of 1, 4-Diethynyl-2- …

…, K Schmieder, MA Garcia-Garibay

Index: Levitus; Zepeda; Dang; Godinez; Khuong; Schmieder; Garcia-Garibay Journal of Organic Chemistry, 2001 , vol. 66, # 9 p. 3188 - 3195

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Citation Number: 29

Abstract

Crystals of 1, 4-bis (2-hydroxy-2-methyl-3-butynyl)-2-fluorobenzene 4 have a rich packing structure with four distinct molecules in the unit cell. A complex hydrogen bonding network results in the formation of cofacial trimers, cofacial dimers, and monomers within the same unit cell. Given a remarkable opportunity to investigate the effect of aggregation on the photophysics of 1, 4-diethynylbenzenes, we analyzed the absorption, diffuse reflectance, ...