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Dau TM, Asamoah BD, Belyaev A, et al. Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes. Dalton Trans. 2016;45(36):14160-73doi: 10.1039/c6dt02435a.
Dau, T. M., Asamoah, B. D., Belyaev, A., Chakkaradhari, G., Hirva, P., Jänis, J., Grachova, E. V., Tunik, S. P., & Koshevoy, I. O. (2016). Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes. Dalton transactions (Cambridge, England : 2003), 45(36), 14160-73. https://doi.org/10.1039/c6dt02435a
Dau, Thuy Minh, et al. "Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes." Dalton transactions (Cambridge, England : 2003) vol. 45,36 (2016): 14160-73. doi: https://doi.org/10.1039/c6dt02435a
Dau TM, Asamoah BD, Belyaev A, Chakkaradhari G, Hirva P, Jänis J, Grachova EV, Tunik SP, Koshevoy IO. Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes. Dalton Trans. 2016 Sep 28;45(36):14160-73. doi: 10.1039/c6dt02435a. Epub 2016 Aug 17. PMID: 27530362.
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Dalton Trans. 2016 Sep 28;45(36):14160-73. doi: 10.1039/c6dt02435a. Epub 2016 Aug 17.

Adjustable coordination of a hybrid phosphine-phosphine oxide ligand in luminescent Cu, Ag and Au complexes.

Dalton transactions (Cambridge, England : 2003)

Thuy Minh Dau, Benjamin Darko Asamoah, Andrey Belyaev, Gomathy Chakkaradhari, Pipsa Hirva, Janne Jänis, Elena V Grachova, Sergey P Tunik, Igor O Koshevoy

Affiliations

  1. Department of Chemistry, University of Eastern Finland, Joensuu, 80101, Finland. [email protected] [email protected].

PMID: 27530362 DOI: 10.1039/c6dt02435a

Abstract

A potentially tridentate hemilabile ligand, PPh2-C6H4-PPh(O)-C6H4-PPh2 (P(3)O), has been used for the construction of a family of bimetallic complexes [MM'(P(3)O)2](2+) (M = M' = Cu (1), Ag (2), Au (3); M = Au, M' = Cu (4)) and their mononuclear halide congeners M(P(3)O)Hal (M = Cu (5-7), Ag (8-10)). Compounds 1-10 have been characterized in the solid state by single-crystal X-ray diffraction analysis to reveal a variable coordination mode of the phosphine-oxide group of the P(3)O ligand depending on the preferable number of coordination vacancies on the metal center. According to the theoretical studies, the interaction of the hard donor P[double bond, length as m-dash]O moiety with d(10) ions becomes less effective in the order Cu > Ag > Au. 1-10 exhibit room temperature luminescence in the solid state, and the intensity and energy of emission are mostly determined by the nature of metal atoms. The photophysical characteristics of the monometallic species were compared with those of the related compounds M(P(3))Hal (11-16) with the non-oxidized ligand P(3). It was found that in the case of the copper complexes 5-7 the P(3)O hybrid ligand introduces effective non-radiative pathways of the excited state relaxation leading to poor emission, while for the silver luminophores the P[double bond, length as m-dash]O group leads mainly to the modulation of luminescence wavelength.

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