A series of new norspermidine derivatives, both nonionic and cationic, have been obtained. Structures of the synthesized compounds have been estab-lished by FTIR, 1H NMR, 13C NMR, 2D NMR, mass spectrometry and element...A series of new norspermidine derivatives, both nonionic and cationic, have been obtained. Structures of the synthesized compounds have been estab-lished by FTIR, 1H NMR, 13C NMR, 2D NMR, mass spectrometry and elemental analyses. Physicochemical and anti-microbial properties have been discussed.展开更多
In solution and on a variety of substrates, the ability of spectral sensitizing dyes to form molecular aggregates with close intermolecular spacings and strong coupling is a well-known phenomenon. A given dye may form...In solution and on a variety of substrates, the ability of spectral sensitizing dyes to form molecular aggregates with close intermolecular spacings and strong coupling is a well-known phenomenon. A given dye may form several different types of aggregates, which exhibits spectral shifts of±100 nm from the monomer spectrum in the solution. Aggregate of dye ab-展开更多
文摘A series of new norspermidine derivatives, both nonionic and cationic, have been obtained. Structures of the synthesized compounds have been estab-lished by FTIR, 1H NMR, 13C NMR, 2D NMR, mass spectrometry and elemental analyses. Physicochemical and anti-microbial properties have been discussed.
文摘In solution and on a variety of substrates, the ability of spectral sensitizing dyes to form molecular aggregates with close intermolecular spacings and strong coupling is a well-known phenomenon. A given dye may form several different types of aggregates, which exhibits spectral shifts of±100 nm from the monomer spectrum in the solution. Aggregate of dye ab-
