Bhatt Prashant N, Pathak Trupti V, Mehta Jignasu P, Misra Sudhindra N
Department of Chemistry, Bhavnagar University, Bhavnagar 364 002, India.
Indian J Biochem Biophys. 2004 Apr-Jun;41(2-3):123-7.
Spectroscopic properties of Nd (III)-DOPA in aquated organic solvents are investigated through absorption difference and comparative absorption spectroscopy involving 4f-4f transitions. The change in coordination in different conditions is observed from the absorption intensity analysis when Nd (III) interacts with DOPA. The interaction induced substantial changes in the intensities of 4f-4f bands and their perturbation was reflected through oscillator strength Judd-Ofelt intensity (Tlamda) parameters. It is suggested that the changes in the oscillator strengths of different 4f-4f bands and Judd-Ofelt intensity (Tlamda) parameters can be used to predict in vivo intracellular complexation of DOPA with Ca(II) through Nd (III)-DOPA absorption spectral studies in-vitro as both Nd (III) and Ca(II) have unique similarity in their coordination behaviour.
通过吸收差异和涉及4f-4f跃迁的比较吸收光谱，研究了Nd(III)-多巴在水合有机溶剂中的光谱性质。当Nd(III)与多巴相互作用时，通过吸收强度分析观察到不同条件下配位的变化。这种相互作用引起了4f-4f能带强度的显著变化，其微扰通过振子强度贾德-奥费尔特强度（Tlamda）参数得以体现。研究表明，通过体外Nd(III)-多巴吸收光谱研究，不同4f-4f能带的振子强度和贾德-奥费尔特强度（Tlamda）参数的变化可用于预测多巴在体内与Ca(II)的细胞内络合情况，因为Nd(III)和Ca(II)在配位行为上具有独特的相似性。
