873077-92-0Relevant academic research and scientific papers
Self-assembly of a luminescent zinc(II) complex: A supramolecular host-guest fluorescence signaling system for selective nitrobenzene inclusion
Das, Sanjib,Bharadwaj, Parimal K.
, p. 5257 - 5259 (2006)
A luminescent Zn(II) complex, [Zn(bpy)(aba)2] (1) {bpy = 2,2′-bipyridyl and aba = 4-dimethylaminobenzoate} has been synthesized as a white solid. Complex 1 shows unusually high selectivity toward nitrobenzene in the presence of other organic guests in solution, as well as in the vapor phase, resulting in both a dramatic color change and a concomitant quenching of luminescence. When crystallized from nitrobenzene, 1 affords deep red crystals with the composition [Zn(bpy)(aba)2]·C6H 5NO2 (2) as a hydrogen-bonded channel structure via unusual intermolecular C-H...C(sp3) and H...H interactions. Inside the channels, nitrobenzene molecules form infinite polar linear tapes through strong C-H...O interactions in a head-to-tail fashion. The desorption and resorption of nitrobenzene can be achieved in a thermally reversible manner that can be monitored by X-ray powder diffraction patterns.
