biostudies-literatureYu SNatural Science Foundation of Guangxi ProvinceNational Natural Science Foundation of ChinaGuangxi Normal UniversityGuangxi University11831-11835https://www.ebi.ac.uk/biostudies/studies/S-EPMC9050697biostudies-literatureUnknown10(20)Two novel {Dy₂}-based one dimensional chain compounds {[Dy₂(H₃L)₄(OAc)₆]·2MeOH} _<i>n</i> (1) and {[Dy₂(H₃L)₄(OAc)₄(NCS)₂]·2MeOH} _<i>n</i> (2) (H₃L = 1,3-bis(2-hydroxynaphthalenemethyleneamino)-propan-2-ol) have been prepared under solvothermal conditions. Crystal structure analyses indicate that 1 and 2 feature similar 1D chain structures bearing dinuclear secondary building units. The difference between these two structures is that one chelated acetate ligand of Dy(iii) ion in 1 is replaced by one monodentate coordinated NCS^- ion in 2, leading to their different coordination numbers and geometry configurations to Dy(iii) ion. Magnetic properties indicate that 1 and 2 display slow magnetic relaxation behavior with an effective energy barrier of 16.44(2) K in 1 and 8.02(2) K in 2, respectively, which is maybe attributed to the subtle crystal field perturbation of Dy(iii) ions.RSC advancesTuning slow magnetic relaxation behaviour in a {Dy₂}-based one-dimensional chain <i>via</i> crystal field perturbation.PMC90506972019KY005421661009219010502018ZD0032018GXNSFBA050031Liang FYu SChen ZLiang YHu HLiu DZhang QfalseTuning slow magnetic relaxation behaviour in a {Dy₂}-based one-dimensional chain <i>via</i> crystal field perturbation.Two novel {Dy₂}-based one dimensional chain compounds {[Dy₂(H₃L)₄(OAc)₆]·2MeOH} _<i>n</i> (1) and {[Dy₂(H₃L)₄(OAc)₄(NCS)₂]·2MeOH} _<i>n</i> (2) (H₃L = 1,3-bis(2-hydroxynaphthalenemethyleneamino)-propan-2-ol) have been prepared under solvothermal conditions. Crystal structure analyses indicate that 1 and 2 feature similar 1D chain structures bearing dinuclear secondary building units. The difference between these two structures is that one chelated acetate ligand of Dy(iii) ion in 1 is replaced by one monodentate coordinated NCS^- ion in 2, leading to their different coordination numbers and geometry configurations to Dy(iii) ion. Magnetic properties indicate that 1 and 2 display slow magnetic relaxation behavior with an effective energy barrier of 16.44(2) K in 1 and 8.02(2) K in 2, respectively, which is maybe attributed to the subtle crystal field perturbation of Dy(iii) ions.2020-01-01T00:00:00Z2020 Mar2025-04-04T09:09:38.472Z2025-04-04T09:09:38.472ZS-EPMC90506973549663910.1039/d0ra01604g