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DOI | 10.1126/science.aau7160 |
Luminescence and reactivity of a charge-transfer excited iron complex with nanosecond lifetime | |
Kjmer, Kasper Skov1; Kaul, Nidhi2; Prakash, Om3; Chabera, Pavel1; Rosemann, Nils W.1; Honarfar, Alireza1; Gordivska, Olga3; Fredin, Lisa A.4,7; Bergquist, Karl-Erik3; Haggstrom, Lennart5; Ericsson, Tore5; Lindh, Linnea1; Yartsev, Arkady1; Styring, Stenbjorn2; Huang, Ping2; Uhlug, Jens1; Bendix, Jesper6; Strand, Daniel3; Sundstrom, Villy1; Persson, Petter4; Lomoth, Reiner2; Warnmark, Kenneth3 | |
2019-01-18 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6424页码:249-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden; Denmark; USA |
英文摘要 | Iron's abundance and rich coordination chemistry are potentially appealing features for photochemical applications. However, the photoexcitable charge-transfer states of most iron complexes are limited by picosecond or subpicosecond deactivation through low-lying metal-centered states, resulting in inefficient electron-transfer reactivity and complete lack of photoluminescence. In this study, we show that octahedral coordination of iron(Ill) by two mono-anionic facial tris-carbene ligands can markedly suppress such deactivation. The resulting complex [Fe(phtmeimb)(2)](+), where phtmeimb is {phenyl[tris(3-methylimidazol-1-ylidene)]borate}(-), exhibits strong, visible, room temperature photoluminescence with a 2.0-nanosecond lifetime and 2% quantum yield via spin-allowed transition from a doublet ligand-to-metal charge-transfer ((LMCT)-L-2) state to the doublet ground state. Reductive and oxidative electron-transfer reactions were observed for the (2)LMCTstate of [Fe(phtmeimb)(2)](+) in bimolecular quenching studies with methylviologen and diphenylamine. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456140700029 |
WOS关键词 | ELECTRON-TRANSFER ; METAL-COMPLEXES ; STATE ; DYNAMICS ; LIGHT ; ROW |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200555 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Lund Univ, Div Phys Chem, Dept Chem, Box 124, SE-22100 Lund, Sweden; 2.Uppsala Univ, Dept Chem, Angstrom Lab, Box 523, SE-75120 Uppsala, Sweden; 3.Lund Univ, CAS, Dept Chem, Box 124, SE-22100 Lund, Sweden; 4.Lund Univ, Div Theoret Chem, Dept Chem, Box 124, SE-22100 Lund, Sweden; 5.Uppsala Univ, Dept Phys & Astron, Angstrom Lab, Box 516, SE-75120 Uppsala, Sweden; 6.Univ Copenhagen, Dept Chem, Univ Pk 5, DK-2100 Copenhagen, Denmark; 7.Lehigh Univ, Dept Chem, 6 E Packer Ave, Bethlehem, PA 18015 USA |
推荐引用方式 GB/T 7714 | Kjmer, Kasper Skov,Kaul, Nidhi,Prakash, Om,et al. Luminescence and reactivity of a charge-transfer excited iron complex with nanosecond lifetime[J]. SCIENCE,2019,363(6424):249-+. |
APA | Kjmer, Kasper Skov.,Kaul, Nidhi.,Prakash, Om.,Chabera, Pavel.,Rosemann, Nils W..,...&Warnmark, Kenneth.(2019).Luminescence and reactivity of a charge-transfer excited iron complex with nanosecond lifetime.SCIENCE,363(6424),249-+. |
MLA | Kjmer, Kasper Skov,et al."Luminescence and reactivity of a charge-transfer excited iron complex with nanosecond lifetime".SCIENCE 363.6424(2019):249-+. |
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