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Long-lived near-infrared luminescent lanthanide complexes of imidodiphosphinate 'shell' ligands

(2005) INORGANIC CHEMISTRY. 44(18). p.6140-6142
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Abstract
Near-infrared emitting complexes of Nd(III), Er(III), and Yb(III) based on hexacoordinate lanthanide ions with an aryl functionalized imidodiphosphinate ligand, tpip, have been synthesized and fully characterized. Three tpip ligands form a shell around the lanthanide with the ligand coordinating via the two oxygens leading to neutral complexes, Ln(tpip)(3). In the X-ray crystal structures of Er(III) and Nd(III) complexes there is evidence of CH-pi interactions between the phenyl groups. Photophysical investigations of solution samples of the complexes demonstrate that all complexes exhibit relatively long luminescence lifetimes in nondeuteurated solvents. Luminescence studies of powder samples have also been recorded for examination of the properties of NIR complexes in the solid state for potential material applications. The results underline the effective shielding of the lanthanide by the twelve phenyl groups of the tpip ligands and the reduction of high-energy vibrations in close proximity to the lanthanide, both features important in the design of NIR emitting lanthanide complexes.
Keywords
IONS, EMISSION, CRYPTAND, ND3+

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Chicago
Bassett, Andrew P, Rik Van Deun, Peter Nockemann, Peter B Glover, Benson M Kariuki, Kristof Van Hecke, Luc Van Meervelt, and Zoe Pikramenou. 2005. “Long-lived Near-infrared Luminescent Lanthanide Complexes of Imidodiphosphinate ‘Shell’ Ligands.” Inorganic Chemistry 44 (18): 6140–6142.
APA
Bassett, A. P., Van Deun, R., Nockemann, P., Glover, P. B., Kariuki, B. M., Van Hecke, K., Van Meervelt, L., et al. (2005). Long-lived near-infrared luminescent lanthanide complexes of imidodiphosphinate “shell” ligands. INORGANIC CHEMISTRY, 44(18), 6140–6142.
Vancouver
1.
Bassett AP, Van Deun R, Nockemann P, Glover PB, Kariuki BM, Van Hecke K, et al. Long-lived near-infrared luminescent lanthanide complexes of imidodiphosphinate “shell” ligands. INORGANIC CHEMISTRY. 2005;44(18):6140–2.
MLA
Bassett, Andrew P, Rik Van Deun, Peter Nockemann, et al. “Long-lived Near-infrared Luminescent Lanthanide Complexes of Imidodiphosphinate ‘Shell’ Ligands.” INORGANIC CHEMISTRY 44.18 (2005): 6140–6142. Print.
@article{1190221,
  abstract     = {Near-infrared emitting complexes of Nd(III), Er(III), and Yb(III) based on hexacoordinate lanthanide ions with an aryl functionalized imidodiphosphinate ligand, tpip, have been synthesized and fully characterized. Three tpip ligands form a shell around the lanthanide with the ligand coordinating via the two oxygens leading to neutral complexes, Ln(tpip)(3). In the X-ray crystal structures of Er(III) and Nd(III) complexes there is evidence of CH-pi interactions between the phenyl groups. Photophysical investigations of solution samples of the complexes demonstrate that all complexes exhibit relatively long luminescence lifetimes in nondeuteurated solvents. Luminescence studies of powder samples have also been recorded for examination of the properties of NIR complexes in the solid state for potential material applications. The results underline the effective shielding of the lanthanide by the twelve phenyl groups of the tpip ligands and the reduction of high-energy vibrations in close proximity to the lanthanide, both features important in the design of NIR emitting lanthanide complexes.},
  author       = {Bassett, Andrew P and Van Deun, Rik and Nockemann, Peter and Glover, Peter B and Kariuki, Benson M and Van Hecke, Kristof and Van Meervelt, Luc and Pikramenou, Zoe},
  issn         = {0020-1669},
  journal      = {INORGANIC CHEMISTRY},
  keyword      = {IONS,EMISSION,CRYPTAND,ND3+},
  language     = {eng},
  number       = {18},
  pages        = {6140--6142},
  title        = {Long-lived near-infrared luminescent lanthanide complexes of imidodiphosphinate 'shell' ligands},
  url          = {http://dx.doi.org/10.1021/ic0482436},
  volume       = {44},
  year         = {2005},
}

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