POLYANIONS AND THEIR COMPLEXES .2. LIGHT-INDUCED PARAMAGNETISM IN SOLID GLYCOSAMINOGLYCAN-DYE COMPLEXES
POLYANIONS AND THEIR COMPLEXES .2. LIGHT-INDUCED PARAMAGNETISM IN SOLID GLYCOSAMINOGLYCAN-DYE COMPLEXES
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DOI：
10.1016/0304-4165(67)90113-4
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发表时间：
1967-01-01
期刊：
影响因子：
--
通讯作者：
YOUNG, MD
中科院分区：
文献类型：
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作者：
BALAZS, EA;PHILLIPS, GO;YOUNG, MD
复合物的糖胺聚糖与各种阳离子噻嗪，吖啶，和三苯甲烷染料光诱导电子顺磁共振光谱显示没有超精细分裂。在-100至20°范围内，信号强度不依赖于温度，自由基的衰减遵循一级动力学。诱导顺磁信号的光的波长是异染带的波长，并且该效应取决于染料的电子亲和势。有人提出，它是阴离子位点和阳离子染料之间的相互作用，引起的异染性光谱位移（hysochromic和hypochromic效应）和光诱导的自由基，这种相互作用是由于电子或电荷转移。
Complexes of glycosaminoglycans with various cationic thiazin, acridine, and triphenylmethane dyes give light-induced electron paramagnetic resonance spectra showing no hyperfine splitting. The intensity of the signal is not dependent on temperature over the range of —100 to 20°, and the decay of the radicals follows first-order kinetics. The wavelength of the light which induces the paramagnetic signal is that of the metachromatic band and this effect is dependent on the electron affinity of the dye. It is proposed that it is the interaction between the anionic site and the cationic dye that gives rise to the metachromatic spectral shift (hysochromic and hypochromic effect) and the photo-inducible free radicals, and that this inneraction is due to electron or charge transfer.