0000000001299940
AUTHOR
Yan-cong Chen
showing 16 related works from this author
Cover Picture: Dynamic Magnetic and Optical Insight into a High Performance Pentagonal Bipyramidal DyIII Single-Ion Magnet (Chem. Eur. J. 24/2017)
2017
Dynamic Magnetic and Optical Insight into a High Performance Pentagonal Bipyramidal Dy(III) Single-Ion Magnet
2017
The pentagonal bipyramidal single-ion magnets (SIMs) are among the most attractive prototypes of high-performance single-molecule magnets (SMMs). Here, a fluorescence-active phosphine oxide ligand CyPh2PO (=cyclohexyl(diphenyl)phosphine oxide) was introduced into [Dy(CyPh2PO)2(H2O)5]Br3⋅2 (CyPh2PO)⋅EtOH⋅3 H2O, and combined dynamic magnetic measurement, optical characterization, ab initio calculation, and magneto-optical correlation of this high-performance pseudo-D5h DyIII SIM with large Ueff (508(2) K) and high magnetic hysteresis temperature (19 K) were performed. This work provides a deeper insight into the rational design of promising molecular magnets.
A Dysprosium Metallocene Single-Molecule Magnet Functioning at the Axial Limit
2017
Abstraction of a chloride ligand from the dysprosium metallocene [(Cpttt)2DyCl] (1Dy Cpttt=1,2,4‐tri(tert‐butyl)cyclopentadienide) by the triethylsilylium cation produces the first base‐free rare‐earth metallocenium cation [(Cpttt)2Dy]+ (2Dy) as a salt of the non‐coordinating [B(C6F5)4]− anion. Magnetic measurements reveal that [2Dy][B(C6F5)4] is an SMM with a record anisotropy barrier up to 1277 cm−1 (1837 K) in zero field and a record magnetic blocking temperature of 60 K, including hysteresis with coercivity. The exceptional magnetic axiality of 2Dy is further highlighted by computational studies, which reveal this system to be the first lanthanide SMM in which all low‐lying Kramers doub…
Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet
2018
Breaking through the nitrogen ceiling Single-molecule magnets could prove useful in miniaturizing a wide variety of devices. However, their application has been severely hindered by the need to cool them to extremely low temperature using liquid helium. Guo et al. now report a dysprosium compound that manifests magnetic hysteresis at temperatures up to 80 kelvin. The principles applied to tuning the ligands in this complex could point the way toward future architectures with even higher temperature performance. Science , this issue p. 1400
Uranocenium: Synthesis, Structure, and Chemical Bonding
2019
Abstraction of iodide from [(η5 -C5 i Pr5 )2 UI] (1) produced the cationic uranium(III) metallocene [(η5 -C5 i Pr5 )2 U]+ (2) as a salt of [B(C6 F5 )4 ]- . The structure of 2 consists of unsymmetrically bonded cyclopentadienyl ligands and a bending angle of 167.82° at uranium. Analysis of the bonding in 2 showed that the uranium 5f orbitals are strongly split and mixed with the ligand orbitals, thus leading to non-negligible covalent contributions to the bonding. Investigation of the dynamic magnetic properties of 2 revealed that the 5f covalency leads to partially quenched anisotropy and fast magnetic relaxation in zero applied magnetic field. Application of a magnetic field leads to domin…
Dynamic Magnetic and Optical Insight into a High Performance Pentagonal Bipyramidal Dy(III) Single-Ion Magnet
2017
The pentagonal bipyramidal single-ion magnets (SIMs) are among the most attractive prototypes of high-performance single-molecule magnets (SMMs). Here, a fluorescence-active phosphine oxide ligand CyPh2PO (=cyclohexyl(diphenyl)phosphine oxide) was introduced into [Dy(CyPh2PO)2(H2O)5]Br3⋅2 (CyPh2PO)⋅EtOH⋅3 H2O, and combined dynamic magnetic measurement, optical characterization, ab initio calculation, and magneto-optical correlation of this high-performance pseudo-D5h DyIII SIM with large Ueff (508(2) K) and high magnetic hysteresis temperature (19 K) were performed. This work provides a deeper insight into the rational design of promising molecular magnets. peerReviewed
CCDC 1551848: Experimental Crystal Structure Determination
2017
Related Article: Richard Layfield, Fu-Sheng Guo, Benjamin Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikamäkki|2017|Angew.Chem.,Int.Ed.|56|11445|doi:10.1002/anie.201705426
CCDC 1854466: Experimental Crystal Structure Determination
2018
Related Article: Fu-Sheng Guo, Benjamin M. Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikkamäki, Richard A. Layfield|2018|Science|362|1400|doi:10.1126/science.aav0652
CCDC 1854468: Experimental Crystal Structure Determination
2018
Related Article: Fu-Sheng Guo, Benjamin M. Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikkamäki, Richard A. Layfield|2018|Science|362|1400|doi:10.1126/science.aav0652
CCDC 1551846: Experimental Crystal Structure Determination
2017
Related Article: Richard Layfield, Fu-Sheng Guo, Benjamin Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikamäkki|2017|Angew.Chem.,Int.Ed.|56|11445|doi:10.1002/anie.201705426
CCDC 2020929: Experimental Crystal Structure Determination
2020
Related Article: Richard Layfield, Fu-Sheng Guo, Benjamin Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikamäkki|2017|Angew.Chem.,Int.Ed.|56|11445|doi:10.1002/anie.201705426
CCDC 1519259: Experimental Crystal Structure Determination
2017
Related Article: Yan-Cong Chen, Jun-Liang Liu, Yan-Hua Lan, Zhi-Qiang Zhong, Akseli Mansikkamäki, Liviu Ungur, Quan-Wen Li, Jian-Hua Jia, Liviu F. Chibotaru, Jun-Bo Han, Wolfgang Wernsdorfer, Xiao-Ming Chen, and Ming-Liang Tong|2017|Chem.-Eur.J.|23|5708|doi:10.1002/chem.201606029
CCDC 1898063: Experimental Crystal Structure Determination
2019
Related Article: Richard Layfield, Fu-Sheng Guo, Akseli Mansikkamaki, Ming-Liang Tong, Yan-Cong Chen|2019|Angew.Chem.,Int.Ed.|58|10163|doi:10.1002/anie.201903681
CCDC 1898062: Experimental Crystal Structure Determination
2019
Related Article: Richard Layfield, Fu-Sheng Guo, Akseli Mansikkamaki, Ming-Liang Tong, Yan-Cong Chen|2019|Angew.Chem.,Int.Ed.|58|10163|doi:10.1002/anie.201903681
CCDC 1854467: Experimental Crystal Structure Determination
2018
Related Article: Fu-Sheng Guo, Benjamin M. Day, Yan-Cong Chen, Ming-Liang Tong, Akseli Mansikkamäki, Richard A. Layfield|2018|Science|362|1400|doi:10.1126/science.aav0652
CCDC 1519258: Experimental Crystal Structure Determination
2017
Related Article: Yan-Cong Chen, Jun-Liang Liu, Yan-Hua Lan, Zhi-Qiang Zhong, Akseli Mansikkamäki, Liviu Ungur, Quan-Wen Li, Jian-Hua Jia, Liviu F. Chibotaru, Jun-Bo Han, Wolfgang Wernsdorfer, Xiao-Ming Chen, and Ming-Liang Tong|2017|Chem.-Eur.J.|23|5708|doi:10.1002/chem.201606029