Rhodamine Salicylaldehyde Hydrazone Dy(III) Complexes: Fluorescence and Magnetism

doi:10.1021/acs.inorgchem.8b00219

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	Rhodamine Salicylaldehyde Hydrazone Dy(III) Complexes: Fluorescence and Magnetism
	Liu, Mei-Jiao 1; Yuan, Juan 1; Tao, Jin 2; Zhang, Yi-Quan 2; Liu, Cai-Ming 3; Kou, Hui-Zhong 1
刊名	INORGANIC CHEMISTRY
	2018-04-02
卷号	57 期号:7 页码:4061-4069
ISSN号	0020-1669
DOI	10.1021/acs.inorgchem.8b00219
英文摘要	Three new dysprosium(III) complexes [Dy-2(HL1-o)(2)(L-1)(NO3)(3)] [Dy(NO3)(5)]center dot 1.5ACE center dot 0.5Et(2)O (1) [Dy(L-1)(3)]center dot 2.5MeOH center dot MeCN (2), and [Dy(L-2)(3)]center dot MeOH center dot MeCN (3) (HL1 = rhodamine B salicylaldehyde hydrazine, HL2 = rhodamine B 3-methylsalicylaldehyde hydrazine) were synthesized and characterized. Purple complex 1 contains two ring-open ligands HL1-o and shows fluorescence of the rhodamine amide moiety, whereas yellow complexes 2 and 3 are comprised of ring-dose ligands (L-1/2)(-) and display fluorescence of the salicylaldehyde Schiff base part. For 2 and 3, Dy(III) ions are nine coordinated by the six oxygen and three nitrogen atoms of three chelate (L-1/2)(-) ligands, but the arrangements of the three ligands are different owing to the methyl substituent on HL2. There are three short Predominant DY-O-phenoxy bonds in 2 and 3. The largest O-phenoxy-DY-O-phenoxy angle is 148.64(17)degrees for 2 and 89.63(13)degrees for 3. Magnetic studies reveal that complex 2 is a field-induced single-molecule magnet (U-eff = 104.2 K under a dc magnetic field of 2000 Oe), and 3 exhibits only a magnetic relaxation behavior owing to the quantum tunneling of magnetization (QTM). Furthermore, ab initio calculations illustrate that the disposition of predominant DY-O-phenoxy bonds affects the magnetic anisotropy of the Dy(III) ions and relaxation processes of complexes 2 and 3.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000429283200061
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45973]
专题	中国科学院化学研究所
通讯作者	Zhang, Yi-Quan; Kou, Hui-Zhong
作者单位	1.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China 2.Nanjing Normal Univ, Sch Phys Sci & Technol, Jiangsu Key Lab NSLSCS, Nanjing 210023, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Mei-Jiao,Yuan, Juan,Tao, Jin,et al. Rhodamine Salicylaldehyde Hydrazone Dy(III) Complexes: Fluorescence and Magnetism[J]. INORGANIC CHEMISTRY,2018,57(7):4061-4069.
APA	Liu, Mei-Jiao,Yuan, Juan,Tao, Jin,Zhang, Yi-Quan,Liu, Cai-Ming,&Kou, Hui-Zhong.(2018).Rhodamine Salicylaldehyde Hydrazone Dy(III) Complexes: Fluorescence and Magnetism.INORGANIC CHEMISTRY,57(7),4061-4069.
MLA	Liu, Mei-Jiao,et al."Rhodamine Salicylaldehyde Hydrazone Dy(III) Complexes: Fluorescence and Magnetism".INORGANIC CHEMISTRY 57.7(2018):4061-4069.