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[求助]
關(guān)于Ru(II)的多吡啶化合物熒光淬滅的理解
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Upon excitation into the metal-to-ligand charge transfer (MLCT) band, dppz complexes of Ru(II) are highly emissive when intercalated into DNA but show significant quenching when measured in aqueous buffer because of hydrogen bonding to the phenazine nitrogen atoms. Thus, these complexes exhibit a “l(fā)ightswitch” effect in DNA because intercalation of the dppz ligand into the DNA π-stack protects the phenazine nitrogens from quenching by aqueous solvent, restoring luminescence 在水溶液 buffer 中Ru(II)的多吡啶化合物與DNA以插入模式作用而發(fā)生熒光淬滅。而后半句卻說可以恢復(fù)發(fā)光,沒理解明白,請(qǐng)高手幫忙解釋一些,非常感謝! |
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