Project supported by the National Natural Science Foundation of China (No. 90101018) and the Science Foundation of Jiangsu Province of China (No. BK2004085).
The new chromophore compounds with NLO properties were prepared by Knoevenagel condensation from forrnyl or diformyl calix[4/arene and isophorone derivatives in the presence of piperidine and acetic acid, respectively...
Project supported by the National Natural Science Foundation of China (No. 90101018) and the Center of Materials Analysis of Nanjing University.
Five novel azo calix[4]arenes were reported. The p-aminobenzaldehyde was diazotized with sodium nitrite in aqueous hydrochloride solution. Mono-, bis-, tris- and tetrakis(p-formylphenyl)azo calix[4]arenes (including p...