ICCAS OpenIR
Exploring Intertrimer Cu center dot center dot center dot Cu Interactions and Further Phosphorescent Properties of Aryl Trimer Copper(l) Pyrazolates via Substituent Changing and External Pressure
Gong, Fangbin1; Wang, Qian1; Chen, Jun1; Yang, Zhipei1; Liu, Min1; Li, Shayu1; Yang, Guoqiang1; Bai, Ligang2; Liu, Jing2; Dong, Yuhui2
2010-02-15
Source PublicationINORGANIC CHEMISTRY
ISSN0020-1669
Volume49Issue:4Pages:1658-1666
AbstractTo explore the effect of intertrimer Cu center dot center dot center dot Cu interactions on the phosphorescent properties of trimeric copper(l) pyrazolates, three new complexes with identical core cluster structures and different substituents, {[3,5-(Me)(2)-4-(Ph)Pz]Cu}(3) (MPC-P), {[3,5-(Me)(2)-4-(1-Naph)Pz]Cu}(3) (MPC-N), and {[3,5-(Me)(2)-4-(9-Anthr)Pz]Cu}(3) (MPC-A), were synthesized. The intertrimer Cu center dot center dot center dot Cu distances of the three complexes were obtained from X-ray crystallographic data or molecular dynamics simulations. The phosphorescent properties of the three complexes were investigated at various pressures. At ambient pressure, the emissions of the three complexes were dramatically different from each other. For MPC-P, the main emission band was identified as phosphorescence and MPC-N gave a predominant emission of fluorescence and a weak emission of phosphorescence. When the substitutent was replaced by an anthryl group in MPC-A, no phosphorescence was observed, except for a strong fluorescence band. The phosphorescence of the trimer copper(l) pyrazolates was assigned to the excited-state dimer/polymer *[Cu(3)](n) with LMCT characteristics. Under higher external pressures, only phosphorescent intensities of MPC-P showed considerable enhancement at pressures up to 2 GPa. External pressure reduced the intertrimer Cu center dot center dot center dot Cu distances of MPC-P and enhanced the phosphorescence intensities, providing a direct evidence to support the assignment of phosphorescence.
DOI10.1021/ic9020417
Indexed BySCI
Language英语
WOS IDWOS:000274240700056
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69776
Collection中国科学院化学研究所
Corresponding AuthorLi, Shayu
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Photochem, Inst Chem, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Gong, Fangbin,Wang, Qian,Chen, Jun,et al. Exploring Intertrimer Cu center dot center dot center dot Cu Interactions and Further Phosphorescent Properties of Aryl Trimer Copper(l) Pyrazolates via Substituent Changing and External Pressure[J]. INORGANIC CHEMISTRY,2010,49(4):1658-1666.
APA Gong, Fangbin.,Wang, Qian.,Chen, Jun.,Yang, Zhipei.,Liu, Min.,...&Dong, Yuhui.(2010).Exploring Intertrimer Cu center dot center dot center dot Cu Interactions and Further Phosphorescent Properties of Aryl Trimer Copper(l) Pyrazolates via Substituent Changing and External Pressure.INORGANIC CHEMISTRY,49(4),1658-1666.
MLA Gong, Fangbin,et al."Exploring Intertrimer Cu center dot center dot center dot Cu Interactions and Further Phosphorescent Properties of Aryl Trimer Copper(l) Pyrazolates via Substituent Changing and External Pressure".INORGANIC CHEMISTRY 49.4(2010):1658-1666.
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