Photoacoustic and fluorescence Spectroscopy of metallomesogens containing lanthanide ions
Yang, YT; Li, JJ; Liu, XJ; Zhang, SY; Liu, J; Liu J(刘景)
刊名CHINESE JOURNAL OF CHEMICAL PHYSICS
2008
卷号21期号:2页码:#REF!
关键词photoacoustic spectroscopy lanthanide complex liquid crystal relaxation process phase transition
学科分类Physics
DOI10.1088/1674-0068/21/02/99-104
通讯作者Yang, YT (reprint author), Nanjing Univ, Inst Acoust, Minist Educ, Key Lab Modern Acoust, Nanjing 210093, Peoples R China.
文章类型Article
英文摘要Metallomesogens Ln(bta)(3)L(2) (Ln(3+): La(3+), Eu(3+), and Ho(3+); bta: benzoyltrifluoroacetonate; L: Schiff base) were prepared. Photoacoustic (PA) spectroscopy was used to study physicochemical properties of the liquid crystalline metal complexes. In the region of ligand absorption, PA intensity increases for Eu(bta)(3)L(2), La(bta)(3)L(2), and Ho(bta)(3)L(2), in that order. It is found that the PA intensity of the ligand bears a relation to the intramolecular energy transfer process. For the first time, phase transitions of Eu(bta)(3)L(2) from glass state to smectic A (SmA) phase and SmA phase to isotropic liquid are monitored by PA and fluorescence (FL) spectroscopy from two aspects: nonradiative and radiative transitions. The results show that PA technique may serve as a new tool for investigating the spectral properties and phase transitions of liquid crystals containing metal ions.
类目[WOS]Physics, Atomic, Molecular & Chemical
收录类别SCI
WOS记录号WOS:000255807000002
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226134
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Yang, YT,Li, JJ,Liu, XJ,et al. Photoacoustic and fluorescence Spectroscopy of metallomesogens containing lanthanide ions[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2008,21(2):#REF!.
APA Yang, YT,Li, JJ,Liu, XJ,Zhang, SY,Liu, J,&刘景.(2008).Photoacoustic and fluorescence Spectroscopy of metallomesogens containing lanthanide ions.CHINESE JOURNAL OF CHEMICAL PHYSICS,21(2),#REF!.
MLA Yang, YT,et al."Photoacoustic and fluorescence Spectroscopy of metallomesogens containing lanthanide ions".CHINESE JOURNAL OF CHEMICAL PHYSICS 21.2(2008):#REF!.
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