Back to articles
Articles
Volume: 18 | Article ID: art00057_2
Image
Local Similarity Between Mixed Crystals of Two Components and Crystals of Their Hybrid Single Component in Pyrrolopyrrole Compounds
  DOI :  10.2352/ISSN.2169-4451.2002.18.1.art00057_2  Published OnlineJanuary 2002
Abstract

Diketopyrrolopyrroles are typical hydrogen-bonded pigments of red color based on the skeleton of 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP). Our previous investigation revealed that the 1:1 mixed crystal (MX-DPP) composed of DPP and its (t-butylphenyl) derivative (BTB-DPP) gives practically the same electronic spectra as well as X-ray diffraction diagram as those of the hybrid compound of DPP and BTB-DPP (MTB-DPP). In order to elucidate the present coincidence, electronic structure has been investigated on single crystals of MX-DPP and MTB-DPP on the basis of the structure analysis. The space groups of both crystals are found to be the same (P-1) and the crystallographic parameters are quite similar. In both MX-DPP and MTB-DPP, the same molecular environment (in other words, the “local similarity”) is achieved throughout the crystal. Furthermore, the polarized reflection spectra measured on single crystals also gave approximately the same results. These experimental facts led us to conclude that the “local similarity” plays the key role in the determination of the crystal and electronic structures in MX-DPP and MTB-DPP.

Subject Areas :
Views 6
Downloads 0
 articleview.views 6
 articleview.downloads 0
  Cite this article 

H. Shikamori, J. Mizuguchi, "Local Similarity Between Mixed Crystals of Two Components and Crystals of Their Hybrid Single Component in Pyrrolopyrrole Compoundsin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP18),  2002,  pp 661 - 665,  https://doi.org/10.2352/ISSN.2169-4451.2002.18.1.art00057_2

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2002
72010410
NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA