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Volume 4
Nano Research & Applications
ISSN: 2471-9838
Page 21
Notes:
August 16-18, 2018 | Dublin, Ireland
&
JOINT EVENT
12
th
Edition of International Conference on
Nanopharmaceutics and Advanced Drug Delivery
25
th
Nano Congress for Future Advancements
Nano Congress 2018
&
Nano Drug Delivery 2018
August 16-18, 2018
Synthesis, x-ray crystal structure, emission property, and DFT calculation of monoprotonated
polypyridine
A
series of metal-free compounds, i.e., bpyHPF6 (1), dmbpyHPF6 (2), phenHPF6 (3) dpphenPF6 (4), bqnHPF6 (5)
and ppyHPF6 (7) were newly prepared and characterized by electrospray ionization mass spectrometry, and UV-vis
spectroscopy. Abbreviations used are bpy=2,2’-bipyridine, dmbpy=4, 4’-dimethyl-2, 2’-bipyridine, phen=1,10-phenanthroline,
bqn = 2,2’-biquinoline and ppy = phenylpyrizine. The x-ray crystal structures of the four compounds 1, 2, 3, 4 5 and 7 were
determined. Monoprotonated pyridine rings are hydrogen bonded intramolecularly to the adjacent pyridine ring in compounds
1, 2, 3, 4 and 5. The π-π* absorption bands in the UV region for 1, 2, 3, 4 and 5 in acetonitrile were red-shifted relative to those
of the corresponding neutral unprotonated compounds. Density functional theory was applied to interpret the planarity in
1. The attachment of one proton to the one nitrogen in 5 leads to the remarkable emission (ϕ= 0.10). The attachment of one
proton to one nitrogen in 4 also gives the large quantum yield.
Biography
Naokazu Yoshikawa is a researcher from 2000. He have completed PhD in 2008 from Nara Women’s University and continued postdoctoral studies with Osaka University
and Nara educational University. He have published more than 25 papers in reputed journals. He have an interest in iridium complexes and Ruthenium complexes. Re-
cently he also interested in metal free emission product.
naokazuu@dream.comNaokazu Yoshikawa
Nara Women’s University, Japan
Naokazu Yoshikawa, Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C3-014