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Title: A new Cu–cysteamine complex: structure and optical properties

Abstract

Here we report the structure and optical properties of a new Cu–cysteamine complex (Cu–Cy) with a formula of Cu3Cl(SR)2 (R ¼ CH2CH2NH2). This Cu–Cy has a different structure from a previous Cu–Cy complex, in which both thio and amine groups from cysteamine bond with copper ions. Single-crystal X-ray diffraction and solid-state nuclear magnetic resonance results show that the oxidation state of copper in Cu3Cl(SR)2 is +1 rather than +2. Further, Cu3Cl(SR)2 has been observed to show intense photoluminescence and X-ray excited luminescence. More interesting is that Cu3Cl(SR)2 particles can produce singlet oxygen under irradiation by light or X-ray. This indicates that Cu3Cl(SR)2 is a new photosensitizer that can be used for deep cancer treatment as X-ray can penetrate soft tissues. All these findings mean that Cu3Cl(SR)2 is a new material with potential applications for lighting, radiation detection and cancer treatment.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1158993
Report Number(s):
PNNL-SA-103576
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Materials Chemistry C, 2(21):4239-4246
Additional Journal Information:
Journal Name: Journal of Materials Chemistry C, 2(21):4239-4246
Country of Publication:
United States
Language:
English

Citation Formats

Ma, Lun, Chen, Wei, Schatte, Gabriele, Wang, Wei, Joly, Alan G., Huang, Yining, Sammynaiken, Ramaswami, and Hossu, Marius. A new Cu–cysteamine complex: structure and optical properties. United States: N. p., 2014. Web. doi:10.1039/C4TC00114A.
Ma, Lun, Chen, Wei, Schatte, Gabriele, Wang, Wei, Joly, Alan G., Huang, Yining, Sammynaiken, Ramaswami, & Hossu, Marius. A new Cu–cysteamine complex: structure and optical properties. United States. https://doi.org/10.1039/C4TC00114A
Ma, Lun, Chen, Wei, Schatte, Gabriele, Wang, Wei, Joly, Alan G., Huang, Yining, Sammynaiken, Ramaswami, and Hossu, Marius. 2014. "A new Cu–cysteamine complex: structure and optical properties". United States. https://doi.org/10.1039/C4TC00114A.
@article{osti_1158993,
title = {A new Cu–cysteamine complex: structure and optical properties},
author = {Ma, Lun and Chen, Wei and Schatte, Gabriele and Wang, Wei and Joly, Alan G. and Huang, Yining and Sammynaiken, Ramaswami and Hossu, Marius},
abstractNote = {Here we report the structure and optical properties of a new Cu–cysteamine complex (Cu–Cy) with a formula of Cu3Cl(SR)2 (R ¼ CH2CH2NH2). This Cu–Cy has a different structure from a previous Cu–Cy complex, in which both thio and amine groups from cysteamine bond with copper ions. Single-crystal X-ray diffraction and solid-state nuclear magnetic resonance results show that the oxidation state of copper in Cu3Cl(SR)2 is +1 rather than +2. Further, Cu3Cl(SR)2 has been observed to show intense photoluminescence and X-ray excited luminescence. More interesting is that Cu3Cl(SR)2 particles can produce singlet oxygen under irradiation by light or X-ray. This indicates that Cu3Cl(SR)2 is a new photosensitizer that can be used for deep cancer treatment as X-ray can penetrate soft tissues. All these findings mean that Cu3Cl(SR)2 is a new material with potential applications for lighting, radiation detection and cancer treatment.},
doi = {10.1039/C4TC00114A},
url = {https://www.osti.gov/biblio/1158993}, journal = {Journal of Materials Chemistry C, 2(21):4239-4246},
number = ,
volume = ,
place = {United States},
year = {Sat Jun 07 00:00:00 EDT 2014},
month = {Sat Jun 07 00:00:00 EDT 2014}
}