The supramolecular recognitions of α-amino acid,anion,aromatic acid and small peptides have been investigated by UV-visible spectrometric titration in this paper.The results indicated that the host compounds form 1:1...The supramolecular recognitions of α-amino acid,anion,aromatic acid and small peptides have been investigated by UV-visible spectrometric titration in this paper.The results indicated that the host compounds form 1:1 or 1:2 supramolecular complexes with the guests.The impetuses of the supramolecular recognitions are mainly the hydrogen bond and electrostatic force.The space structure is also a important effect factor.展开更多
The new N,N’-bis(squaryl)-3,6-pyridazine bis(methylamine) had been synthesized by the reaction 3,6-diformylpyridazine with 2-amino-1-propanol,2-(aminomethyl)phenol and squaric acid.The new compounds was confirmed by ...The new N,N’-bis(squaryl)-3,6-pyridazine bis(methylamine) had been synthesized by the reaction 3,6-diformylpyridazine with 2-amino-1-propanol,2-(aminomethyl)phenol and squaric acid.The new compounds was confirmed by Infrared spectra,1H NMR and element analysis.The effect of metal ions on fluorescence characterization of the compound was investigated.The selective interaction between metal ions(Cu2+,Ni2+) and the compound led to obvious fluorescence quenching.展开更多
文摘The supramolecular recognitions of α-amino acid,anion,aromatic acid and small peptides have been investigated by UV-visible spectrometric titration in this paper.The results indicated that the host compounds form 1:1 or 1:2 supramolecular complexes with the guests.The impetuses of the supramolecular recognitions are mainly the hydrogen bond and electrostatic force.The space structure is also a important effect factor.
文摘The new N,N’-bis(squaryl)-3,6-pyridazine bis(methylamine) had been synthesized by the reaction 3,6-diformylpyridazine with 2-amino-1-propanol,2-(aminomethyl)phenol and squaric acid.The new compounds was confirmed by Infrared spectra,1H NMR and element analysis.The effect of metal ions on fluorescence characterization of the compound was investigated.The selective interaction between metal ions(Cu2+,Ni2+) and the compound led to obvious fluorescence quenching.
