Fluoride ion coordination-induced turn-on fluorescence of tailored -methyl N-confused tripyrromonomethene analogues.

Structural isolation of two unprecedented AIEE/ACQ type fluorophores based on -methyl N-confused tripyrromonomethene analogues exhibiting selective F anion-coordination-induced-enhanced emission (ACIEE) with a detection limit of 10 M is reported. The intrinsic relation between molecular structures/molecular arrangements with (without) anion binding have been revealed at a deeper level spectroscopic measurements and DFT level theoretical studies.

Neuroprotective Activity of a Novel Synthetic Rhodamine-Based Hydrazone against Cu-Induced Alzheimer's Disease in .

A new rhodamine-based probe 3,5-di--butylsalicylaldehyde rhodamine hydrazone () has been synthesized and well characterized using spectroscopic techniques and single-crystal X-ray crystallography. Among several metal ions, it selectively detects Cu ions as monitored by UV-Vis and emission spectral titrations. It displays "turn on" behavior owing to the opening of a spirolactum ring and the presence of 3,5-di--butyl as an electron releasing group.

An ensemble of Zn with a rhodamine B-3-allylsalicylaldehyde hydrazone as novel photosensitive material: Photochromism, photopatterning, photoprinting and molecular logic gates.

An ensemble of Zn with Rhodamine B-3-allylsalicylaldehyde hydrazone (1-Zn), has been synthesized and fully characterized using spectroscopic techniques. A solution of 1-Zn in THF, displays color changes from light yellow to pink color in the presence UV light (λ, 405 nm). The process is reversible and owes to keto-enol tautomerism which allows the opening of spirolactam ring of rhodamine in the presence of UV light.

A benzimidazolyl terpyridine-Fe system and its recognition driven molecular model of a traffic light.

A new benzimidazolyl terpyridyl ligand (BIT) selectively detects Fe2+, F- and CN- ions in acetonitrile. The Fe2+ complex [Fe(H-BIT)2]·(ClO4)4 (1) displays the fast and selective detection of 2,4,6-trinitrophenol (TNP) with strong binding (log β = 8.51 ± 0.