Hybrid materials consisting of organic/inorganic components are candidates for industrial applications and exhibit interesting properties[1]. KH2PO4 (KDP) has been observed to include a variety of anionic organic molecules on the {101} face due to electrostatic interactions between the molecules and the crystal surface[2]. Sulfonated azo dyes are shown to selectively recognize the {101} growth face during crystallization from aqueous solution. When in a high temperature environment, KDP has been observed to grow around the organic dye molecules to produce an undyed or partially dyed crystal. This research project seeks to investigate the temperature range of inclusion for three sulfonated azo dyes, find a relationship between the dye structure and the temperature at which it is included, and characterize KDP dye inclusion crystals. This information will aid in growing a large KDP dye inclusion crystal and increase what is known about the dye adsorption mechanism in growing KDP crystals. [1] Asakuma, Y.; Ang, M.; Fufui, K.; Li, Q.; Maeda, K.; Nishimura, M.; Tade, M. Coloring Mechanism of Dyed KDP Crystals by Quantum Chemistry. J. Molecular Structure. 2007, 810, 7-13. [2] Subramony, J. Dyeing KDP. Ph.D. Dissertation, Purdue University, 1999.

Dye inclusion on the {101} face of KDP crystals

249th National Meeting (2015)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.