Synthesis, Characterization, and Near-Infrared Photoluminescence of Novel Neodymium(iii) Complexes

Hongshan He; Wai-Kwok Wong; Jianping Guo; King-Fai Li; Wai-Yeung Wong; Wing-Kit Lo; Kok-Wai Cheah

doi:10.1071/CH04005

RESEARCH ARTICLE

Synthesis, Characterization, and Near-Infrared Photoluminescence of Novel Neodymium(iii) Complexes

Hongshan He ^A ^B ^E , Wai-Kwok Wong ^C ^E , Jianping Guo ^C , King-Fai Li ^D , Wai-Yeung Wong ^C , Wing-Kit Lo ^C and Kok-Wai Cheah ^D

+ Author Affiliations

- Author Affiliations

^A Department of Applied Chemistry, Huaqiao University, Quanzhou 362011, China.

^B Current address: Department of Chemistry, North Dakota State University, Fargo, ND 58105, USA.

^C Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.

^D Department of Physics, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.

^E Authors to whom correspondence should be addressed (e-mail: hongshan.he@ndsu.nodak.edu; wkwong@hkbu.edu.hk).

Australian Journal of Chemistry 57(8) 803-810 https://doi.org/10.1071/CH04005
Submitted: 13 January 2004 Accepted: 9 June 2004 Published: 10 August 2004

Abstract

A series of monoporphyrinate neodymium(iii) complexes stabilized by the anionic tripodal ligand hydridotris(pyrazol-1-yl)borate were prepared and characterized. These complexes were characterized by elemental analysis and spectroscopy. The structure of resulting complex was determined by single-crystal X-ray diffraction. The complex crystallized in the monoclinic space group P2₁/c, with a 13.7347(11), b 27.156(2), c 15.5397(13) Å, β 114.1490(10)°, and V 5288.8(7) Å³. The neodymium(iii) ion is coordinated by four nitrogen atoms from the porphyrinate dianion and three nitrogen atoms from the anionic tripodal ligand. Photoluminescence studies showed that the porphyrinate dianion absorbed light and transferred energy to the Nd³⁺ centre, a process which then allowed the metal ion to emit efficiently at 885, 900, and 1071 nm. The effects of the substituent and the solvent on emission efficiency were also investigated.

Acknowledgments

Thanks are due to the Research Grants Council of Hong Kong Special Administrative Region, China (HKBU2023/00P), Hong Kong Baptist University, and Natural Science Foundation of Fujian province, China, for financial support of this work.

References

Synthesis, Characterization, and Near-Infrared Photoluminescence of Novel Neodymium(iii) Complexes

Abstract

Acknowledgments

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