TY - JOUR
T1 - Emission properties of platinum(II) terpyridyl complexes with hydrophobic poly-L-glutamic acid
AU - Moriuchi, Toshiyuki
AU - Yamada, Masahiro
AU - Yoshii, Kazuki
AU - Ohmura, Satoshi D.
AU - Hirao, Toshikazu
N1 - Funding Information:
This work was supported by the Grant-in-Aid for Science Research on Priority Areas (Nos 20036034 and 21111512) from Ministry of Education, Culture, Sports, Science and Technology, Japan. Thanks are also due to the Analytical Center, Graduate School of Engineering, Osaka University, for the use of the CD instrument.
PY - 2011/1
Y1 - 2011/1
N2 - The reaction of sodium salt of poly-l-glutamic acid (P(Glu)) with didodecyldimethylammonium (DDA) bromide was demonstrated to afford P(Glu)-DDA, which was confirmed to form the α-helical structure even in methanol. The introduction of 0.2 equiv. amount of the platinum(II) complex [Pt(trpy)C ≡ CPhC12H25-p](OTf) (trpy = 2,2′,6′,2″-terpyridine; PtC12) into P(Glu)-DDA in methanol was found to induce the aggregation of platinum(II) complexes, resulting in the exhibition of the triplet metal-metal-to-ligand charge transfer emission. Such synergistic effect was not observed in the case of the platinum(II) complex [Pt(trpy)C ≡ CPh](OTf) (PtH), wherein the emission intensity based on metal-to-ligand charge transfer/ligand-to-ligand charge transfer was increased.
AB - The reaction of sodium salt of poly-l-glutamic acid (P(Glu)) with didodecyldimethylammonium (DDA) bromide was demonstrated to afford P(Glu)-DDA, which was confirmed to form the α-helical structure even in methanol. The introduction of 0.2 equiv. amount of the platinum(II) complex [Pt(trpy)C ≡ CPhC12H25-p](OTf) (trpy = 2,2′,6′,2″-terpyridine; PtC12) into P(Glu)-DDA in methanol was found to induce the aggregation of platinum(II) complexes, resulting in the exhibition of the triplet metal-metal-to-ligand charge transfer emission. Such synergistic effect was not observed in the case of the platinum(II) complex [Pt(trpy)C ≡ CPh](OTf) (PtH), wherein the emission intensity based on metal-to-ligand charge transfer/ligand-to-ligand charge transfer was increased.
KW - emission properties
KW - platinum(II) complex
KW - poly-l-glutamic acid
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U2 - 10.1080/10610278.2010.514907
DO - 10.1080/10610278.2010.514907
M3 - Article
AN - SCOPUS:79952208693
SN - 1061-0278
VL - 23
SP - 113
EP - 116
JO - Supramolecular Chemistry
JF - Supramolecular Chemistry
IS - 1-2
ER -