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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F11%3A00360627%21RIV12-AV0-61388955
rdf:type
skos:Concept n13:Vysledek
dcterms:description
ReI carbonyl-diimine complexes [Re(L-AA)(CO)3(N,N)]+ (N,N = bpy, phen) containing an aromatic amino acid (AA), phenylalanine (Phe), tyrosine (Tyr), or tryptophan (Trp), linked to Re by a pyridine-amido or imidazole-amido ligand L have been synthesized and their excited-state properties investigated by nanosecond time-resolved IR (TRIR) and emission spectroscopy. Near-UV optical excitation populates a ReI(CO)3N,N 3MLCT excited state *[ReII(L-AA)(CO)3(N,N–)]+. Decay to the ground state (50–300 ns lifetime) is the only excited-state deactivation process observed in the case of Phe and Tyr complexes, whereas the Trp-containing species undergo a Trp(indole)*ReII electron transfer (ET) producing a charge-separated (CS) state, [ReI(L-Trp+)(CO)3(N,N–)]+. The ET occurs with a 8–40 ns lifetime depending on L, N,N, and the solvent. ReI carbonyl-diimine complexes [Re(L-AA)(CO)3(N,N)]+ (N,N = bpy, phen) containing an aromatic amino acid (AA), phenylalanine (Phe), tyrosine (Tyr), or tryptophan (Trp), linked to Re by a pyridine-amido or imidazole-amido ligand L have been synthesized and their excited-state properties investigated by nanosecond time-resolved IR (TRIR) and emission spectroscopy. Near-UV optical excitation populates a ReI(CO)3N,N 3MLCT excited state *[ReII(L-AA)(CO)3(N,N–)]+. Decay to the ground state (50–300 ns lifetime) is the only excited-state deactivation process observed in the case of Phe and Tyr complexes, whereas the Trp-containing species undergo a Trp(indole)*ReII electron transfer (ET) producing a charge-separated (CS) state, [ReI(L-Trp+)(CO)3(N,N–)]+. The ET occurs with a 8–40 ns lifetime depending on L, N,N, and the solvent.
dcterms:title
Photoinduced Intramolecular Tryptophan Oxidation and Excited-State Behavior of [Re(L-AA)(CO)3(r-diimine)] þ (L = Pyridine or Imidazole, AA = Tryptophan, Tyrosine, Phenylalanine) Photoinduced Intramolecular Tryptophan Oxidation and Excited-State Behavior of [Re(L-AA)(CO)3(r-diimine)] þ (L = Pyridine or Imidazole, AA = Tryptophan, Tyrosine, Phenylalanine)
skos:prefLabel
Photoinduced Intramolecular Tryptophan Oxidation and Excited-State Behavior of [Re(L-AA)(CO)3(r-diimine)] þ (L = Pyridine or Imidazole, AA = Tryptophan, Tyrosine, Phenylalanine) Photoinduced Intramolecular Tryptophan Oxidation and Excited-State Behavior of [Re(L-AA)(CO)3(r-diimine)] þ (L = Pyridine or Imidazole, AA = Tryptophan, Tyrosine, Phenylalanine)
skos:notation
RIV/61388955:_____/11:00360627!RIV12-AV0-61388955
n13:predkladatel
n14:ico%3A61388955
n3:aktivita
n4:Z n4:P
n3:aktivity
P(LD11082), Z(AV0Z40400503)
n3:cisloPeriodika
13
n3:dodaniDat
n8:2012
n3:domaciTvurceVysledku
n6:7173784 n6:3953084 n6:1080873
n3:druhVysledku
n10:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
220259
n3:idVysledku
RIV/61388955:_____/11:00360627
n3:jazykVysledku
n9:eng
n3:klicovaSlova
tryptophan; tyrosine; phenylalanine
n3:klicoveSlovo
n11:tryptophan n11:tyrosine n11:phenylalanine
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[1E7BD169FFF4]
n3:nazevZdroje
Inorganic Chemistry
n3:obor
n20:CF
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n18:LD11082
n3:rokUplatneniVysledku
n8:2011
n3:svazekPeriodika
50
n3:tvurceVysledku
Blanco-Rodríguez, A. M. Towrie, M. Záliš, Stanislav Vlček jr., Antonín Sýkora, Jan
n3:wos
000292010000031
n3:zamer
n12:AV0Z40400503
s:issn
0020-1669
s:numberOfPages
13
n19:doi
10.1021/ic200252z