Research output: Contribution to journal › Article › peer-review
Luminescence behaviour of Au(i)-Cu(i) heterobimetallic coordination polymers based on alkynyl-tris(2-pyridyl)phosphine Au(i) complexes. / Petrovskii, Stanislav K. ; Paderina, Aleksandra V. ; Sizova, Anastasia A. ; Baranov, Andrey Yu. ; Artem'ev, Alexander A. ; Sizov, Vladimir V. ; Grachova, Elena V. .
In: Dalton Transactions, Vol. 49, No. 38, 14.10.2020, p. 13430-13439.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Luminescence behaviour of Au(i)-Cu(i) heterobimetallic coordination polymers based on alkynyl-tris(2-pyridyl)phosphine Au(i) complexes
AU - Petrovskii, Stanislav K.
AU - Paderina, Aleksandra V.
AU - Sizova, Anastasia A.
AU - Baranov, Andrey Yu.
AU - Artem'ev, Alexander A.
AU - Sizov, Vladimir V.
AU - Grachova, Elena V.
N1 - Publisher Copyright: © The Royal Society of Chemistry 2020. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10/14
Y1 - 2020/10/14
N2 - A set of alkynyl-tris(2-pyridyl)phosphine Au(i) complexes was synthesized and characterized. Free coordination functions on the ligand environment periphery, namely 'scorpionate' PPy3 and the C C bond, allowed these ditopic metalloligands to be selectively linked to 1D coordination polymers by reaction with Cu(i), which used both Cu-(N-PPy3) and Cu-(eta(2)-C C) coordination modes. Single-crystal and powder XRD, NMR, and XPS techniques were used to characterize the coordination polymers obtained. Heterobimetallic Au(I)-Cu(I) coordination polymers demonstrate triplet photoluminescence which was studied by spectroscopic and computational methods to understand the pathway of energy transfer inside the chain of linked chromophore centres. The intriguing feature of the electronic structure of heterobimetallic supramolecular assemblies is the 'long-distance' electronic transition involving PhC2 and PPy3 ligands located at a distance of more than 1 nm from each other. Thus, the assembly of a heterobimetallic coordination polymer from relatively simple 'building blocks' retains the block-wise nature of the electronic structure, but the photophysical properties of the polymer are fundamentally different from the properties of discrete organometallic components.
AB - A set of alkynyl-tris(2-pyridyl)phosphine Au(i) complexes was synthesized and characterized. Free coordination functions on the ligand environment periphery, namely 'scorpionate' PPy3 and the C C bond, allowed these ditopic metalloligands to be selectively linked to 1D coordination polymers by reaction with Cu(i), which used both Cu-(N-PPy3) and Cu-(eta(2)-C C) coordination modes. Single-crystal and powder XRD, NMR, and XPS techniques were used to characterize the coordination polymers obtained. Heterobimetallic Au(I)-Cu(I) coordination polymers demonstrate triplet photoluminescence which was studied by spectroscopic and computational methods to understand the pathway of energy transfer inside the chain of linked chromophore centres. The intriguing feature of the electronic structure of heterobimetallic supramolecular assemblies is the 'long-distance' electronic transition involving PhC2 and PPy3 ligands located at a distance of more than 1 nm from each other. Thus, the assembly of a heterobimetallic coordination polymer from relatively simple 'building blocks' retains the block-wise nature of the electronic structure, but the photophysical properties of the polymer are fundamentally different from the properties of discrete organometallic components.
KW - TRIPODAL LIGANDS
KW - PHOSPHINE
KW - TRIS(2-PYRIDYL)PHOSPHINE
KW - 2-BROMOPYRIDINE
KW - OXIDE
KW - MODULATION
KW - CLUSTERS
KW - MONO
UR - http://www.scopus.com/inward/record.url?scp=85092246894&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/ccba2397-77dc-39db-94da-487b59e023b3/
U2 - 10.1039/D0DT02583F
DO - 10.1039/D0DT02583F
M3 - Article
C2 - 32966450
AN - SCOPUS:85092246894
VL - 49
SP - 13430
EP - 13439
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 38
ER -
ID: 62500687