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Use chloride to assist in constructing of penta- and nano-nucleus mixed-valent Cu(I/II) clusters and their photo-thermal properties
Chloride ions are introduced to construct two mixed-valence polynuclear Cu(I/II) clusters with different nucleus (penta-nucleus for I and nano-nucleus for II) and different proportion of valence state (1/4 for I vs 1/2 for II). Contrastively studies of their optical absorption properties indicate hi...
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Published in: | Inorganica Chimica Acta 2023-01, Vol.545, p.121270, Article 121270 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Chloride ions are introduced to construct two mixed-valence polynuclear Cu(I/II) clusters with different nucleus (penta-nucleus for I and nano-nucleus for II) and different proportion of valence state (1/4 for I vs 1/2 for II). Contrastively studies of their optical absorption properties indicate high-nucleus mixed-valence CuI/CuII cluster with higher proportion of CuII is superior to those penta-nucleus mixed-valent Cu(I/II) clusters. With the introduction of chloride ions to the structures of mixed-valence CuI/CuII clusters have not remarkably changed their photothermal conversion performance.
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•Chloride ions are introduced to construct one penta-nucleus Cu(I/II) cluster and one nano-nucleus Cu(I/II) cluster.•The optical absorption property of the high-nucleus mixed-valence Cu(I/II) cluster with higher proportion of CuII is superior to those penta-nucleus mixed-valent Cu(I/II) clusters.•With the introduction of chloride ions to the structures of mixed-valence Cu(I/II) clusters have not remarkably changed their photothermal conversion performance.
To prepare new series of mixed-valence polynuclear Cu(I/II) clusters, chloride ions are introduced to construct two mixed-valence polynuclear Cu(I/II) clusters for evaluating their photothermal conversion performance. X-ray single-crystal structural analysis reveals their molecular formula are {CuII[CuI(Cy3P)]4(BTA)4Cl2}·5DMF (I·5DMF, Cy3P = triscyclohexylphosphine, BTA = benzotriazole, DMF = N,N-Dimethylformamide) and {(CuII)3[CuI(PPh2Py)]6(BTA)8Cl4}·6DMF (II·6DMF, Ph2PyP = diphenyl-2-pyridylphosphine), respectively. X-ray Photoelectron Spectroscopy (XPS) and Electrospray Ionization Mass Spectrometry (ESI-MS) confirm their chemical composition and charge state. The reported two mixed-valence CuI/CuII clusters have different nucleus (penta-nucleus for I and nano-nucleus for II) and different proportion of valence state (1/4 for I vs 1/2 for II). The thermogravimetric analysis (TGA) reveals the thermal stability of both clusters is less than our previously reported penta-nucleus mixed-valence CuI/CuII clusters. Contrastively studies of their optical absorption properties by the solid-state ultraviolet diffuse reflection spectra indicate high-nucleus mixed-valence CuI/CuII cluster with higher proportion of CuII is superior to those penta-nucleus mixed-valent Cu(I/II) clusters. With the introduction of chloride ions to the structures of mixed-valence CuI/CuII clusters have not remarkably changed th |
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ISSN: | 0020-1693 1873-3255 |
DOI: | 10.1016/j.ica.2022.121270 |