Research output: Contribution to journal › Article › peer-review
Cyclometalated Platinum(II) Complexes Simultaneously Catalyze the Cross-Linking of Polysiloxanes and Function as Luminophores. / Dobrynin, Mikhail V.; Sokolova, Elina V.; Kinzhalov, Mikhail A.; Smirnov, Andrey S.; Starova, Galina L.; Kukushkin, Vadim Yu; Islamova, Regina M.
In: ACS Applied Polymer Materials, Vol. 3, No. 2, 12.02.2021, p. 857-866.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Cyclometalated Platinum(II) Complexes Simultaneously Catalyze the Cross-Linking of Polysiloxanes and Function as Luminophores
AU - Dobrynin, Mikhail V.
AU - Sokolova, Elina V.
AU - Kinzhalov, Mikhail A.
AU - Smirnov, Andrey S.
AU - Starova, Galina L.
AU - Kukushkin, Vadim Yu
AU - Islamova, Regina M.
PY - 2021/2/12
Y1 - 2021/2/12
N2 - A family of the C,N-cyclometalated species [Pt(ppy)Cl(PPh3)], [Pt(ppy)Cl(CNCy)], [Pt(ppy)(CNCy)(PPh3)](OTf), and [Pt(ppy)(CNCy)2](BF4) (ppy = 2-phenylpyridinato-C2,N; Cy = cyclohexyl) was generated from [Pt(ppy)(μ-Cl)]2, CNCy, and PPh3. The obtained platinum(II) complexes were characterized by high-resolution ESI+-MS, IR, and 1D (1H, 13C{1H}, 195Pt{1H}) and 2D (1H,1H-NOESY; 1H,13C-HSQC; 1H,13C-HMBC) NMR spectroscopy, and the latter three complexes were investigated by X-ray diffraction. All four platinum species were examined as hydrosilylation catalysts (c 10–4–10–3 M; 80–120 °C; [Pt(ppy)Cl(PPh3)] exhibited the highest catalytic activity) for the cross-linking of vinyl-terminated polydimethylsiloxane and polymethylhydrosiloxane to achieve luminescent silicone rubbers. Each solid complex and the appropriate silicone rubber exhibited the same emission spectra in the green region and strong phosphorescence with a solid-state quantum yield of up to 12.5% (measured for the silicone elastomer obtained with the [Pt(ppy)(CNCy)2](BF4) catalyst). The resulting luminescent silicone rubbers can be potentially used for protective coatings (to facilitate the thickness control) and as a component for phosphor-converted white light-emitting diodes (to transform a UV part of the LED emission to the visible spectrum).
AB - A family of the C,N-cyclometalated species [Pt(ppy)Cl(PPh3)], [Pt(ppy)Cl(CNCy)], [Pt(ppy)(CNCy)(PPh3)](OTf), and [Pt(ppy)(CNCy)2](BF4) (ppy = 2-phenylpyridinato-C2,N; Cy = cyclohexyl) was generated from [Pt(ppy)(μ-Cl)]2, CNCy, and PPh3. The obtained platinum(II) complexes were characterized by high-resolution ESI+-MS, IR, and 1D (1H, 13C{1H}, 195Pt{1H}) and 2D (1H,1H-NOESY; 1H,13C-HSQC; 1H,13C-HMBC) NMR spectroscopy, and the latter three complexes were investigated by X-ray diffraction. All four platinum species were examined as hydrosilylation catalysts (c 10–4–10–3 M; 80–120 °C; [Pt(ppy)Cl(PPh3)] exhibited the highest catalytic activity) for the cross-linking of vinyl-terminated polydimethylsiloxane and polymethylhydrosiloxane to achieve luminescent silicone rubbers. Each solid complex and the appropriate silicone rubber exhibited the same emission spectra in the green region and strong phosphorescence with a solid-state quantum yield of up to 12.5% (measured for the silicone elastomer obtained with the [Pt(ppy)(CNCy)2](BF4) catalyst). The resulting luminescent silicone rubbers can be potentially used for protective coatings (to facilitate the thickness control) and as a component for phosphor-converted white light-emitting diodes (to transform a UV part of the LED emission to the visible spectrum).
KW - полисилоксаны
KW - вулканизация
KW - люминесценция
KW - cross-linking
KW - hydrosilylation
KW - luminescent silicones
KW - catalysis
KW - platinum complexes
KW - isocyanides
UR - http://www.scopus.com/inward/record.url?scp=85100663364&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a3a21123-e775-32d6-82da-22cea9fd584c/
U2 - 10.1021/acsapm.0c01190
DO - 10.1021/acsapm.0c01190
M3 - Article
AN - SCOPUS:85100663364
VL - 3
SP - 857
EP - 866
JO - ACS Applied Polymer Materials
JF - ACS Applied Polymer Materials
SN - 2637-6105
IS - 2
ER -
ID: 74081434