Effect of Adding Bromine Sensors to the Central Linker of New Diquinoline Derivative

Abstract

Designing a selective lattice inclusion host had been challenging and fulfilling. Using 3 as a building block, we introduced bromine sensors to the central linker and investigate its effect on inclusion properties. An unexpected result was obtained when a pure sample of the diquinoline derivative 4 was crystallised from tetrahydrofuran. Unlike host 3, the diquinoline 4 did not include any guest molecules.

Keywords:

• bromine sensors
• inclusion compounds
• supramolecular synthon
• X-ray crystal structure

ACKNOWLEDGMENTS

The author would like to thank Mutah University for the support needed for this research, the Agency for Science, Technology, and Research (A*STAR, Singapore) for the financial support, Prof. Koh Lip Lin and Ms. Tan Geok Kheng from the National University of Singapore for their technical support and assistance. Great thanks are also due to Prof. Roger Bishop who was the first one to introduce and design the modular for this study. Special thanks are due to Dr. Zaher Juddeh (Nanyang Technological University, Singapore) for technical support and assistance in running some of the experiments reported in this article.