Pyridylpyrrolides as alternatives to cyclometalated phenylpyridine ligands: synthesis and characterization of luminescent zinc and boron pyridylpyrrolide complexes

Dalton Transactions : an International Journal of Inorganic Chemistry
Jamie J KlappaKristopher McNeill

Abstract

The synthesis, structure, and properties of six luminescent pyridylpyrrolide complexes and the first structural characterization of pyridylpyrrolide metal complexes are reported. A series of new zinc complexes, bis(pyridylpyrrolyl)zinc, (R2PyrPy)2Zn (R = Me, Et, iPr, tBu, and Ph), that vary in their substituents on the pyrrole ring (Me, Et, iPr, tBu, and Ph), were prepared. Pyrrole substitution produced small structural changes in the complexes and affected the fluorescence properties very little. The zinc complexes were found to be luminescent, emitting at 495 nm (Phi = 0.32, 0.32 0.31, 0.19 and 0.57, respectively). A boron analog, (Me2PyrPy)BF2, was prepared and was found to share the luminescent properties with the zinc complexes, emitting at 505 nm (Phi = 0.22), but not their water-sensitivity. A total of four crystal structures are reported, tBu2PyrPyH, (Me2PyrPy)2Zn, (tBu2PyrPy)2Zn, and (Me2PyrPy)BF2. tBu2PyrPyH crystallizes as a doubly hydrogen bonded dimer with non-coplanar pyridine and pyrrole rings. The solid-state structures of (Me2PyrPy)2Zn and (tBu2PyrPy)2Zn revealed that despite the large change in steric bulk, the two compounds have very similar structures. The structure of (Me2PyrPy)BF2 showed changes that are e...Continue Reading

References

Jan 1, 1995·Acta Crystallographica. Section A, Foundations of Crystallography·R H Blessing
Mar 7, 2001·Inorganic Chemistry·F WuR P Thummel
May 8, 2003·Journal of the American Chemical Society·Sandrine FraysseJean-Pierre Launay
May 14, 2003·Acta Crystallographica. Section C, Crystal Structure Communications·Wayland E NolandDoyle Britton
Jun 12, 2003·Journal of the American Chemical Society·Arnold B TamayoMark E Thompson
Jul 17, 2003·Journal of the American Chemical Society·Md K NazeeruddinM Graetzel
Aug 5, 2003·Inorganic Chemistry·Maria C DeRosaChristopher E B Evans
Oct 16, 2003·Journal of the American Chemical Society·Carl N IversonJohn E Bercaw
Nov 5, 2001·Angewandte Chemie·Jun PangSuning Wang

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Citations

Jul 23, 2011·Inorganic Chemistry·Jaime A FloresKenneth G Caulton
Aug 19, 2011·Inorganic Chemistry·Penelope J Brothers
Aug 6, 2013·Inorganic Chemistry·Nikolay P TsvetkovKenneth G Caulton
Mar 12, 2009·Chemical Communications : Chem Comm·Daniela PucciMauro Ghedini
Sep 3, 2009·Chemical Communications : Chem Comm·Hao WangBoris A Trofimov
May 13, 2014·Journal of the American Chemical Society·Zhan ZhangJonathan L Sessler
Jul 15, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Changjiang YuLijuan Jiao
Apr 15, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Zbigniew WróbelJanusz Lewiński
Feb 25, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Catherine E BaconJeremy M Rawson
Jul 7, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Keith SearlesDaniel J Mindiola
Feb 1, 2014·Angewandte Chemie·Denis FrathRaymond Ziessel
Aug 7, 2010·Inorganic Chemistry·José G AndinoKenneth G Caulton

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