Fading of a novel colorimetric receptor after recognizing H2PO4−. Issue 8 (3rd August 2018)

• Record Type: Journal Article
• Authors: Li, Dan; Zheng, Shibing; Lin, Huakuan; Yang, Zhongyue; Huang, Weiwei
• Is Part Of: Supramolecular chemistry. Volume 30:Issue 8(2018)
• Page Start: 681
• Page End: 686
• Publication Date: 2018-08-03
• Subjects: Colorimetric -- naked-eye -- hydrogen bonds -- H2PO4−; Macromolecules -- Periodicals; Supramolecular chemistry -- Periodicals; 547.005
• DOI: 10.1080/10610278.2018.1442004
• Languages: English
• ISSNs: 1061-0278

Abstract

Abstract: A novel selective and sensitive colorimetric receptor1 ( 1, 10 - phenanthroline - 2, 9 - dialdehyde bis -(- p - nitrophenylureasemicarbo - hydrazone )) based on urea showing distinctive color fading phenomenon towards H2 PO4 − ion was reported. Fancifully, the recognition process of receptor1 to H2 PO4 − was not interfered by the existence of others anions. We have probed the binding mechanism of1 -H2 PO4 − that H2 PO4 − ion induced competitive hydrogen binding process via intramolecular hydrogen-bond by UV–vis, fluorescence, 1 H NMR titrations and ESI-MS experiments. Abstract :