52686-54-1Relevant academic research and scientific papers
L-Tartaric acid assisted binary organogel system: Strongly enhanced fluorescence induced by supramolecular assembly
Bao, Chunyan,Lu, Ran,Jin, Ming,Xue, Pengchong,Tan, Changhui,Liu, Guofa,Zhao, Yingying
, p. 2508 - 2512 (2005)
A new series of binary organogels, which showed good gelated capability and strongly enhanced fluorescence emission, were designed and prepared by simply mixing two components of L-tartaric acid and alkoxyl substituted stilbazoles. It was found that L-tartaric acid could not only introduce stilbazole with fluorescent property into the gel system, but also provided a main motif for the formation of the gel-phase via multiple hydrogen bonds. Meanwhile, π-π interactions between the complexes also played a key role in the gel formation. The decreased nonradiative process, suggested by the longer fluorescent lifetime of aggregates than that of monomers and the presence of the J-aggregation for the aggregated state, favored the enhanced fluorescence emission The Royal Society of Chemistry 2005.
STUDIES OF SOME HETEROCYCLIC MESOGENS.
Nash,Gray
, p. 299 - 321 (2007/10/07)
New mesogens have been prepared and studied by differential thermal analysis and optical microscopy to elucidate the effects on mesomorphic properties of replacing a benzene ring by different heterocyclic rings. To supplement earlier work and to complement the above studies of changing the terminal groups of molecules, compounds with pyridyl rings in non-terminal positions have also been studied. The overall results relating to the mesophases formed and the trends in the crystal-mesophase or -amorphous liquid and mesophase-mesophase or -amorphous liquid transition temperatures are discussed in terms of changes in axial molecular polarizability produced by the hetero-atom either directly or indirectly.
