Spectroscopic evidence on improvement in complex formation of O2N2 aza-crown macrocyclic ligands with Cu(II) acetate upon incorporation with [60]Fullerene
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- 作者：Bahram Ghanbari ; Ghanbari@sharif.edu" class="auth_mail" title="E-mail the corresponding author ; Parisa Gholamnezhad
- 关键词：Azacrown ; Benesi-Hildebrand ; Binding constant ; [60]Fullerene ; Spectroscopy ; Thermodynamic ; Blue copper site
- 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
- 出版年：2016
- 出版时间：5 December 2016
- 年：2016
- 卷：169
- 期：Complete
- 页码：202-207
- 全文大小：592 K
文摘
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UV–vis-NIR spectra of the Cu(II) complex of the aza-crowns anchored to C60 (Ln) was measured.
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The spectra displayed a new strong LMCT bands.
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The Kb values of L1 and L2 with Cu(II) were measured
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DFT calculations recommended significant HOMO's alternation for L1 < L2 order.
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Entropic factors are dominant for coordination of Cu(II) with L1 and L2.