| Title: | Multifunctional Binuclear Ln(III) Complexes Obtained via In Situ Tandem Reactions: Multiple Photoresponses to Volatile Organic Solvents and Anticounterfeiting and Magnetic Properties |
| Author(s): | Wang HF; Zhu ZH; Peng JM; Yin B; Wang HL; Zou HH; Liang FP; |
| Address: | "State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, People's Republic of China. Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710127 People's Republic of China. Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, People's Republic of China" |
| DOI: | 10.1021/acs.inorgchem.0c02193 |
| ISSN/ISBN: | 1520-510X (Electronic) 0020-1669 (Linking) |
| Abstract: | "The design and synthesis of simple lanthanide complexes with multiple functions have been widely studied and have faced certain challenges. Herein, we successfully synthesized the series of binuclear lanthanide complexes [Ln(2)(L1)(2)(NO(3))(4)] (HL1 = 2-amino-1,2-bis(pyridin-2-yl)ethanol; Ln = Dy (Dy2), Tb (Tb2), Ho (Ho2) Er (Er2)) via the in situ self-condensation of Ln(NO(3))(3).6H(2)O-catalyzed 2-aminomethylpyridine (16 steps) under solvothermal conditions. Dy2 was mixed with different volatile organic solvents, and photoluminescence tests demonstrated that it showed an excellent selective photoresponse to chloroform (CHCl(3)). Sensing Tb2 on different organic solvents under the same conditions showed that it exhibited excellent selective photoresponse to methanol (CH(3)OH). Even under EtOH conditions, Tb2 could selectively respond to small amounts of CH(3)OH. To the best of our knowledge, achieving a selective photoresponse to various volatile organic compounds by changing the metal center of the complex is difficult. Furthermore, we performed anticounterfeiting tests on Tb2, and the results showed significant differences between the anticounterfeiting marks under white light and ultraviolet light conditions. The alternating current susceptibilities of Dy2 suggested that it was a typical single-molecule magnet (SMM) (U(eff) = 93.62 K, tau(0) = 1.19 x 10(-5) s) under a 0 Oe dc field. Ab initio calculations on Dy2 indicated that the high degrees of axiality of the constituent mononuclear Dy fragments are the main reasons for the existence of SMM behavior" |
| Notes: | "PubMed-not-MEDLINEWang, Hui-Feng Zhu, Zhong-Hong Peng, Jin-Mei Yin, Bing Wang, Hai-Ling Zou, Hua-Hong Liang, Fu-Pei eng 2020/08/31 Inorg Chem. 2020 Sep 21; 59(18):13774-13783. doi: 10.1021/acs.inorgchem.0c02193. Epub 2020 Aug 30" |
