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2008 | 6 | 3 | 429-437

Article title

Novel pH responsive luminescent poly(oxyethylene phosphate) tris(β-diketonate) europium (III) complexes


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The paper reports on the dependence of the absorbance and luminescent intensity from pH of novel poly(oxyethylene phosphate) tris(β-diketonate) europium (III) complexes. The photophysical data obtained allow some preliminary assumptions about the nature of this phenomenon. Increase in luminescent efficiency is a consequence of enhanced efficiency of energy transfer caused by structural changes in complexes after water deprotonation. Remarkable change has been observed in photophysical properties of the polymer complexes by studying the fluorescent emission and excitation spectra and absorption recorded at various pH both in solution and in the solid state. Some of the complexes derivative of the dibenzoylmethane (DBM) show more than hundred times increase in the luminescence after alkalization. The pH value, at which the maximum luminescent efficiency appears, depends on the type of the fourth ligand. The difference between luminescent efficiency of the complexes in alkaline and neutral environment depends on the β-diketonate ligands and on polymer type as well. [...]










Physical description


1 - 9 - 2008
11 - 8 - 2008


  • Laboratory of Organic Photochemistry, Faculty of Chemistry, University of Sofia, 1164, Sofia, Bulgaria
  • Laboratory of Organic Photochemistry, Faculty of Chemistry, University of Sofia, 1164, Sofia, Bulgaria


  • [1] B. Timmer, W. Olthuis, A. van der Berg, Sensors and Actuators B 107, 666 (2005), DOI:10.1016/j.snb.2004.11.054 http://dx.doi.org/10.1016/j.snb.2004.11.054[Crossref]
  • [2] T. Gunnlaugsson, Tetrahedron Letters 42, 8901 (2001), DOI:10.1016/S0040-4039(01)01935-9 http://dx.doi.org/10.1016/S0040-4039(01)01935-9[Crossref]
  • [3] T. Gunnlaugsson, J. P. Leonard, K. Senechal, A. J. Harte, J. Am. Chem. Soc. 125, 12062 (2003), DOI: 10.1021/ja035425a http://dx.doi.org/10.1021/ja035425a[Crossref]
  • [4] J. P. Leonard, C. M. G. dos Santos, S. E. Plush, T. McCabe, T. Gunnlaugsson, Chem. Commun. 129, 129 (2007), DOI: 10.1039/b611487c http://dx.doi.org/10.1039/b611487c[Crossref]
  • [5] C. P. Mccoy, F. Stomeo, S. E. Plush, T. Gunnlaugsson, Chem. Mater. 18, 4336 (2006), DOI: 10.1021/cm060603v http://dx.doi.org/10.1021/cm060603v[Crossref]
  • [6] D. Parker, Coordin. Chem. Rev. 205, 109 (2000), DOI: 10.1016/S0010-8545(00)00241-1 http://dx.doi.org/10.1016/S0010-8545(00)00241-1[Crossref]
  • [7] R. Pal, D. Parker, Org.Biomol.Chem. 6, 1020 (2008), DOI: 10.1039/b718993a http://dx.doi.org/10.1039/b718993a[Crossref]
  • [8] J. P. Leonard, T. Gunnlaugsson, Journal of Fluorescence 15 (4), 585 (2005), DOI: 10.1007/s10895-005-2831-9 http://dx.doi.org/10.1007/s10895-005-2831-9[Crossref]
  • [9] D. Parker, P. K. Senanayake J. A. G. Williams, J. Chem. Soc., Perkin Trans. 2, 2129 (1998), DOI: 10.1039/a801270i [Crossref]
  • [10] Na Shao, J. Jin, G. Wang, Y. Zhang, R. Yang, J. Yuan, Chem. Commun., 1127 (2008), DOI: 10.1039/b715719c [Crossref]
  • [11] S. Blair, M. P. Lowe, C. E. Mathieu, D. Parker, P. K. Senanayake, R. Kataky, Inorg. Chem. 40, 5860(2001), DOI: 10.1021/ic010371w http://dx.doi.org/10.1021/ic010371w[Crossref]
  • [12] S. Salama, F. S. Richardson, J. Phys. Chem., 84, 512 (1980) http://dx.doi.org/10.1021/j100442a012
  • [13] J. L. Kropp, M. W. Windsor, J. Chem. Phys., 39, 2769 (1969) http://dx.doi.org/10.1063/1.1734096
  • [14] A. Beeby, I. M. Clarkson, R. S. Dickins, S. Faulkner, D. Parker, L. Royle, A. S. de Sousa, J. A. G. Williams, M. Woods, J. Chem.Soc., Perkin Trans. 2, 493 (1999), DOI: 10.1039/a808692c [Crossref]
  • [15] Chun-Man Chan, Chun-Sing Fung, Kwok-Yin Wong, W. Lo, Analyst, 123, 1843 (1998), DOI: 10.1039/a802460j http://dx.doi.org/10.1039/a802460j[Crossref]
  • [16] M. H. W. Lam, D. Y. K. Lee, K. W. Man, C. S. W. Lau, J. Mater. Chem., 10, 1825 (2000), DOI: 10.1039/b001914n http://dx.doi.org/10.1039/b001914n[Crossref]
  • [17] K. Kossev, A. Vassilev, Y. Popova, I. Ivanov, K. Troev, Polymer 44 (2), 1987 (2003), doi:10.1016/S0032-3861(03)00081-8 http://dx.doi.org/10.1016/S0032-3861(03)00081-8[Crossref]
  • [18] J. Barnes, P. Holt, Makromol. Chem. 176, 275 (1975), DOI: 10.1002/macp.1975.021760203 http://dx.doi.org/10.1002/macp.1975.021760203[Crossref]
  • [19] R. Tsevi, P. Novakov, K. Troev, D. M. Roundhill, Journal of Polymer Science: Part A: Polymer Chemistry 35, 625 (1997) http://dx.doi.org/10.1002/(SICI)1099-0518(199703)35:4<625::AID-POLA4>3.0.CO;2-O
  • [20] J. Pretula, S. Penzek, Makromol. Chem. 191, 671 (1990), DOI: 10.1002/macp.1990.021910322 http://dx.doi.org/10.1002/macp.1990.021910322[Crossref]
  • [21] R. Tsevi, G. Todorova, K. Kossev, K. Troev, D. M. Roundhill, Makromol. Chem. 194, 3261 (1993) http://dx.doi.org/10.1002/macp.1993.021941205
  • [22] R. Georgieva, R. Tsevi, K. Kossev, R. Kusheva, M. Balgjiska, R. Petrova, V. Tenchova, I. Gitsov, K. Troev, J. Med. Chem. 45, 5797 (2002), DOI: 10.1021/jm020309o http://dx.doi.org/10.1021/jm020309o[Crossref]
  • [23] S. Stanimirov, A. Vasilev, E.T.K. Haupt, I. Petkov, T. Deligeorgiev, J. Fluorescence. In Press, DOI: 10.1007/s10895-008-0384-4 [Crossref]
  • [24] M. P. Lowe, D Parker, Inorg. Chem. Acta 317, 163 (2001), DOI: 10.1016/S0020-1693(01)00346-2 http://dx.doi.org/10.1016/S0020-1693(01)00346-2[Crossref]
  • [25] M. Woods, A. D. Sherry, Inorg. Chem. 42, 4401 (2003), DOI: 10.1021/ic0300823 http://dx.doi.org/10.1021/ic0300823[Crossref]
  • [26] Y. Hasegawa, E. Ishiwata, T. Ohnishi, G. R. Choppin, Anal. Chem. 71, 5060 (1999), DOI: 10.1021/ac990485d http://dx.doi.org/10.1021/ac990485d[Crossref]
  • [27] I. Mamedov, A. Mishra, G. Angelovski, H. A. Mayer, Lars-Olof Pålsson, D. Parker, N. K. Logothetis, Dalton Trans., 5260 (2007), DOI: 10.1039/b711351j [Crossref]

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