Synthesis, characterization, and photophysical properties of first heterobinuclear Zn-Ln (Ln = La, Nd, Eu, Gd, Tb, Er, and Yb) Complexes Based on Asymmetric Schiff-Base Ligand

Spectroscopy Letters

Volumn 46, Issue 2, 2013, Pages 109-116

  Zhao, Shunsheng ^a,b   Liu, Xiangrong ^c   Lü, Xingqiang ^c   Wong, Wai Kwok ^c  

^a XI'AN UNIVERSITY OF SCIENCE AND TECHNOLOGY   (China)

^b NORTHWEST UNIVERSITY   (China)

^c HONG KONG BAPTIST UNIVERSITY   (Hong Kong)

Author keywords

asymmetric Schiff base; near infrared; sensitization and energy transfer

Indexed keywords

EID: 84873295763     PISSN: 00387010     EISSN: 15322289     Source Type: Journal    
DOI: 10.1080/00387010.2012.692427     Document Type: Article

References (20)

1. Comby, S.; Bu? nzli, J.-C. G. Lathanide near-infrared luminescence in molecular probe and device. In Handbook on the Physics and Chemistry of Rare Earths; K. A. Gschneidner Jr, J.-C. G. Bu? nzli, V. K. Pecharsky, Eds.; Elsevier Science B. V.: Amsterdam, 2007; vol. 37, 221-224.
2. Kido, J.; Okamoto, Y. Organo lanthanide metal complexes for electroluminescent materials. Chem. Rev. 2002, 102, 2357-2368. (Pubitemid 35381658)
3. Bu? nzli, J.-C. G.; Eliseeva, S. V. Lanthanide NIR luminescence for telecommunications, bioanalyses and solar energy conversion. J. Rare Earths 2010, 28, 824-842.
4. Bu? nzli, J.-C. G. Lanthanide luminescence for biomedical analyses and imaging. Chem. Rev. 2010, 110, 2729-2755.
5. Sabbatini, N.; Guardigli, M.; Lehn, J. M. Luminescent lanthanide complexes as photochemical supramolecular devices. Coord. Chem. Rev. 1993, 123, 201-228.
6. Bu? nzli, J.-C. G.; Piguet, C. Taking advantage of luminescent lanthanide ions. Chem. Soc. Rev. 2005, 34, 1048-1077. (Pubitemid 41805039)
7. (a) Ward, M. D. Transition-metal sensitized near-infrared luminescence from lanthanides in d-f heteronuclear arrays. Coord. Chem. Rev. 2007, 251, 1663-1677
8. (b) Chen, F. F.; Chen, Z. Q.; Bian, Z. Q.; Huang, C. H. Sensitized luminescence from lanthanides in d-f bimetallic complexes. Coord. Chem. Rev. 2010, 254, 991-1010
9. (c) Ward, M. D. Mechanisms of sensitization of lanthanide(III)- based luminescence in transition metal=lanthanide and anthracene= lanthanide dyads. Coord. Chem. Rev. 2010, 254, 2634-2642.
10. Lo, W. K.; Wong, W.-K.; Wong, W.-Y.; Guo, J. P.; Yeung, K.-T.; Cheng, Y.-K.; Yang, X. P.; Jones, R. A. Heterobimetallic Zn(II)-Ln(III) phenylene-bridged Schiff base complexes, computational studies, and evidence for singlet energy transfer as the main pathway in the sensitization of near-infrared Nd3 luminescence. Inorg. Chem. 2006, 45, 9315-9325.
11. Bi, W. Y.; Lu?, X. Q.; Chai, W. L.; Song, J. R.; Wong, W.-K.; Yang, X. P.; Jones, R. A. Effect of heavy-atom (Br) at the phenyl rings of Schiff-base ligands on the NIR luminescence of their bimetallic Zn-Nd complexes. Z. Anorg. Allg. Chem. 2008, 634, 1795-1800.
12. Zhao, S. S.; Lu?, X. Q.; Hou, A. X.; Wong, W.-Y.; Wong, W.-K.; Yang, X. P.; Jones, R. A. Heteronuclear trimetallic and 1D polymeric 3d-4f Schiff-base complexes with OCN and SCN ligands. Dalton Trans. 2009, 9595-9602.
13. Yang, X. P.; Jones, R. A.; Wong, W.-K.; Oye, M. M.; Holmes, A. L. Design and synthesis of a near infra-red luminescent hexanuclear Zn-Nd prism. Chem. Commun. 2006, 1836-1838. (Pubitemid 43840978)
14. Hui, Y. N.; Feng, W. X.; Wei, T.; Lu?, X. Q.; Song, J. R.; Zhao, S. S.; Wong, W.-W.; Jones, R. A. Adjustment of coordination environment of Ln3 ions to modulate near-infrared luminescent properties of Ln3 complexes. Inorg. Chem. Commun. 2011, 14, 200-204.
15. Albrecht, M.; Osetska, O.; Klankermayer, J.; Fro? hlich, R.; Gumy, F.; Bu? nzli, J.-C.-G. Enhancement of near-IR emissions by bromine substitution in lanthanide complexes with 2-carboxamide-8-hydroxyquinoline. Chem. Commun. 2007, 1834-1836. (Pubitemid 46699198)
16. Weber, M. J. Radiative and multiphonon relaxation of rare-earth ions in Y2O3. Phys. Rev. 1968, 171, 283-291.
17. Bu? nzli, J.-C. G. In Lanthanide Probe in life, Chemical and Earth Sciences, Theory and Practice; J.-C. G. Bu? nzli, G. R. Choppin, Eds. Elsevier Science B. V.: Amsterdam, 1989, ch. 7, pp. 219-293.
18. Carnall, W. T.; Fields, P. R.; Rajnak, K. Electronic energy levels of trivalent lanthanide aquo ions. II. Gd3. J. Chem. Phys. 1968, 49, 4443-4446.
19. Dexter, D. L. A theory of sensitized luminescence in solid. J. Chem. Phys. 1953, 21, 836-850.
20. Beeby, A.; Clarkson, I. M.; Dockins, R. S.; Faulkner, S.; Parker, D.; Royle, L.; de Souda, A. S.; Williams, J. A. G.; Woods, M. Non-radiative deactivation of the excited states of europium, terbium and ytterbium complexes by proximate energy-matched OH, NH and CH oscillators: an improved luminescence method for establishing solution hydration states. J. Chem. Soc., Perkin Trans. 2 1999, 493-504.