Journal
CRYSTAL GROWTH & DESIGN
Volume -, Issue -, Pages -Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.2c01226
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In this study, a tridentate N,N,O ligand (LNO2H) was used to synthesize two neutral structurally similar complexes. X-ray single-crystal diffraction analysis confirmed the octahedral geometry of LnIII ion in both complexes. Magnetic studies showed that complex 1 exhibited single ion magnet (SIM) behavior with an effective energy barrier of 34.16 K. Ab initio calculations were performed to extract the magnetic relaxation dynamics of complexes 1 and 2.
In this work, a tridentate N,N,O ligand [(E)-4-nitro-2-((pyridine-2-ylmethylene)amino)phenol] (LNO2H) is employed for the synthesis of neutral structurally similar complexes [DyIII(LNO2)2(Cl)(H2O)]center dot H2O (1) and [ErIII(LNO2)2(Cl)(CH3OH)] center dot 3CH3OH (2). Both complexes are characterized by single-crystal X-ray diffraction studies. LnIII ion in complexes 1 and 2 is eight coordinated and possesses triangular dodecahedron geometry as confirmed by the SHAPE analysis. The Hirshfeld surface calculation emphasizes the importance of hydrogen bond interaction that controls the overall crystal packing. The magnetic studies reveal that complex 1 shows single ion magnet (SIM) behavior with an effective energy barrier of 34.16 K and pre-exponential parameter 6.51 x 10-6 s. The CASSCF based ab initio calculations were performed on complexes 1 and 2 to extract SH parameters and the plausible magnetic relaxation dynamics.
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