Nonsymmetric [Pt(C^N*N’^C’)] Complexes: Aggregation-Induced Emission in the Solid State and in Nanoparticles Tuned by Ligand Structure

Standard

Nonsymmetric [Pt(C^N*N’^C’)] Complexes: Aggregation-Induced Emission in the Solid State and in Nanoparticles Tuned by Ligand Structure. / Solomatina, Anastasia I. ; Galenko, Ekaterina E. ; Kozina, Daria O. ; Kalinichev, Alexey A. ; Baigildin, Vadim A. ; Prudovskaya, Natalia A. ; Shakirova, Julia R. ; Khlebnikov, Alexander F. ; Porsev, Vitaly V. ; Evarestov, Robert A. ; Tunik, Sergey P. .

In: Chemistry - A European Journal, Vol. 28, No. 64, e202202207, 16.11.2022.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4e5f8cc6318648deb7fc9242d6bc288f,

title = "Nonsymmetric [Pt(C^N*N{\textquoteright}^C{\textquoteright})] Complexes: Aggregation-Induced Emission in the Solid State and in Nanoparticles Tuned by Ligand Structure",

abstract = "Five square-planar [Pt(C^N*N′^C′)] complexes (Pt1–Pt5) with novel nonsymmetric tetradentate ligands (L1–L5) were synthesized and characterized. Varying the structure of the metalating aromatic systems result in substantial changes in photophysical properties and intermolecular interaction mode of the complexes in solution and in solid state. The complexes are strongly emissive in tetrahydrofuran solution, with the band maxima ranging from 560 to 690 nm. Three of these complexes (Pt1, Pt2, Pt4) afford nanospecies upon injection of their solution into water, which show aggregation-induced emission (AIE) with a strong red shift of emission bands. In the solid state, crystalline samples of these complexes demonstrate mechanochromism upon grinding with a bathochromic shift of the emission. DFT and TD-DFT computational analysis of monomeric Pt1–Pt5 in solution and model dimeric emitters formed through intermolecular interaction of Pt1, Pt2, Pt4 molecules allowed assignment of observed AIE to the 3MMLCT excited states of Pt-Pt bonded aggregates of these complexes.",

keywords = "aggregation-induced emission, intermolecular interactions, nanoparticles, phosphorescence, platinum complexes",

author = "Solomatina, {Anastasia I.} and Galenko, {Ekaterina E.} and Kozina, {Daria O.} and Kalinichev, {Alexey A.} and Baigildin, {Vadim A.} and Prudovskaya, {Natalia A.} and Shakirova, {Julia R.} and Khlebnikov, {Alexander F.} and Porsev, {Vitaly V.} and Evarestov, {Robert A.} and Tunik, {Sergey P.}",

note = "Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",

year = "2022",

month = nov,

day = "16",

doi = "10.1002/chem.202202207",

language = "English",

volume = "28",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "Wiley-Blackwell",

number = "64",

}

RIS

TY - JOUR

T1 - Nonsymmetric [Pt(C^N*N’^C’)] Complexes: Aggregation-Induced Emission in the Solid State and in Nanoparticles Tuned by Ligand Structure

AU - Solomatina, Anastasia I.

AU - Galenko, Ekaterina E.

AU - Kozina, Daria O.

AU - Kalinichev, Alexey A.

AU - Baigildin, Vadim A.

AU - Prudovskaya, Natalia A.

AU - Shakirova, Julia R.

AU - Khlebnikov, Alexander F.

AU - Porsev, Vitaly V.

AU - Evarestov, Robert A.

AU - Tunik, Sergey P.

PY - 2022/11/16

Y1 - 2022/11/16

N2 - Five square-planar [Pt(C^N*N′^C′)] complexes (Pt1–Pt5) with novel nonsymmetric tetradentate ligands (L1–L5) were synthesized and characterized. Varying the structure of the metalating aromatic systems result in substantial changes in photophysical properties and intermolecular interaction mode of the complexes in solution and in solid state. The complexes are strongly emissive in tetrahydrofuran solution, with the band maxima ranging from 560 to 690 nm. Three of these complexes (Pt1, Pt2, Pt4) afford nanospecies upon injection of their solution into water, which show aggregation-induced emission (AIE) with a strong red shift of emission bands. In the solid state, crystalline samples of these complexes demonstrate mechanochromism upon grinding with a bathochromic shift of the emission. DFT and TD-DFT computational analysis of monomeric Pt1–Pt5 in solution and model dimeric emitters formed through intermolecular interaction of Pt1, Pt2, Pt4 molecules allowed assignment of observed AIE to the 3MMLCT excited states of Pt-Pt bonded aggregates of these complexes.

AB - Five square-planar [Pt(C^N*N′^C′)] complexes (Pt1–Pt5) with novel nonsymmetric tetradentate ligands (L1–L5) were synthesized and characterized. Varying the structure of the metalating aromatic systems result in substantial changes in photophysical properties and intermolecular interaction mode of the complexes in solution and in solid state. The complexes are strongly emissive in tetrahydrofuran solution, with the band maxima ranging from 560 to 690 nm. Three of these complexes (Pt1, Pt2, Pt4) afford nanospecies upon injection of their solution into water, which show aggregation-induced emission (AIE) with a strong red shift of emission bands. In the solid state, crystalline samples of these complexes demonstrate mechanochromism upon grinding with a bathochromic shift of the emission. DFT and TD-DFT computational analysis of monomeric Pt1–Pt5 in solution and model dimeric emitters formed through intermolecular interaction of Pt1, Pt2, Pt4 molecules allowed assignment of observed AIE to the 3MMLCT excited states of Pt-Pt bonded aggregates of these complexes.

KW - aggregation-induced emission

KW - intermolecular interactions

KW - nanoparticles

KW - phosphorescence

KW - platinum complexes

UR - http://www.scopus.com/inward/record.url?scp=85138675467&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/882f9ea3-fc93-3613-a044-c41cda3c4915/

U2 - 10.1002/chem.202202207

DO - 10.1002/chem.202202207

M3 - Article

VL - 28

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

SN - 0947-6539

IS - 64

M1 - e202202207

ER -

ID: 100074690