Результаты исследований: Научные публикации в периодических изданиях › статья
Luminescent AuI-CuI triphosphine clusters that contain extended linear arylacetylenes. / Shakirova, Julia R.; Grachova, Elena V.; Melekhova, Anna A.; Krupenya, Dmitrii V.; Gurzhiy, Vladislav V.; Karttunen, Antti J.; Koshevoy, Igor O.; Melnikov, Alexei S.; Tunik, Sergey P.
в: European Journal of Inorganic Chemistry, 2012, стр. 4048-4056.Результаты исследований: Научные публикации в периодических изданиях › статья
}
TY - JOUR
T1 - Luminescent AuI-CuI triphosphine clusters that contain extended linear arylacetylenes
AU - Shakirova, Julia R.
AU - Grachova, Elena V.
AU - Melekhova, Anna A.
AU - Krupenya, Dmitrii V.
AU - Gurzhiy, Vladislav V.
AU - Karttunen, Antti J.
AU - Koshevoy, Igor O.
AU - Melnikov, Alexei S.
AU - Tunik, Sergey P.
PY - 2012
Y1 - 2012
N2 - Reactions of the [tppmAu3Cl3] precursor and CuI ions with stoichiometric amount of the corresponding linear mono- (HC2(C6H4)nC6H5, n=1,2) and diacetylenes (HC2(C6H4)nС2H, n=1-3) containing extended polyaryl moieties afford a series of luminescent heterometallic complexes with common structural motif based on the {(AuC2)3Cu} cluster core. The complexes obtained were characterized using X-ray crystallography and NMR spectroscopy. All compounds studied display dual singlet and triplet luminescence, the former component of which can be completely suppressed in concentrated solution by self-absorption phenomenon. The results of the photophysical measurements together with the quantum chemical calculations (PBE0-DFT level of theory) indicate that singlet emission originates mainly from copper-perturbed intraligand transitions whereas the phosphorescence can be assigned to the {(AuC2)3Cu} core-centered transitions. Due to the low contribution of the gold atoms into the orbitals responsible for the singlet and triple
AB - Reactions of the [tppmAu3Cl3] precursor and CuI ions with stoichiometric amount of the corresponding linear mono- (HC2(C6H4)nC6H5, n=1,2) and diacetylenes (HC2(C6H4)nС2H, n=1-3) containing extended polyaryl moieties afford a series of luminescent heterometallic complexes with common structural motif based on the {(AuC2)3Cu} cluster core. The complexes obtained were characterized using X-ray crystallography and NMR spectroscopy. All compounds studied display dual singlet and triplet luminescence, the former component of which can be completely suppressed in concentrated solution by self-absorption phenomenon. The results of the photophysical measurements together with the quantum chemical calculations (PBE0-DFT level of theory) indicate that singlet emission originates mainly from copper-perturbed intraligand transitions whereas the phosphorescence can be assigned to the {(AuC2)3Cu} core-centered transitions. Due to the low contribution of the gold atoms into the orbitals responsible for the singlet and triple
KW - / Heterometallic complexes / Aurophilicity / Phosphines / Alkynes / Photophysical properties
U2 - 10.1002/ejic.201200362
DO - 10.1002/ejic.201200362
M3 - статья
SP - 4048
EP - 4056
JO - Berichte der deutschen chemischen Gesellschaft
JF - Berichte der deutschen chemischen Gesellschaft
SN - 0365-9496
ER -
ID: 5326664