2026-10-12T12:06:42Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33797668 2026-09-15T13:56:47Z portal_1197 item_type_3 month_year_09_2026

Data for Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets Jamie L. Manson (1409152) Zachary E. Manson (18813112) Ashley Glover (24939436) Danielle Y. Villa (10313085) Nicole L. Etten (24939439) William J. A. Blackmore (11873154) Samuel P. M. Curley (10313079) Robert C. Williams (1422460) Jamie Brambleby (1422472) Paul Goddard (564595) Andrew Ozarowski (384497) Murray N. Wilson (3191061) Benjamin M. Huddart (12461348) Tom Lancaster (1422454) Roger D. Johnson (1549621) Stephen J. Blundell (1352358) Jesper Bendix (1319499) Kraig A. Wheeler (1541422) Saul H. Lapidus (1453873) Fan Xiao (1422463) Serena Birnbaum (11873115) John Singleton (1411675) Quantum theory Nickel -- Magnetic properties Magnetism Magnetic materials Magnetic fields Anisotropy Migrated from ePrints We examine the crystal structures and magnetic properties of several S = 1 Ni(II) coordination compounds, molecules and polymers, that include the bridging ligands HF2−, AF62− (A = Ti, Zr) and pyrazine or non-bridging ligands F−, SiF62−, glycine, H2O, 1-vinylimidazole, 4-methylpyrazole and 3-hydroxypyridine. Pseudo-octahedral NiN4F2, NiN4O2 or NiN4OF cores consist of equatorial Ni-N bonds that are equal to or slightly longer than the axial Ni-Lax bonds. By design, the zero-field splitting (D) is large in these systems and, in the presence of substantial exchange interactions (J), can be difficult to discriminate from magnetometry measurements on powder samples. Thus, we relied on pulsed-field magnetization in those cases and employed electron-spin resonance (ESR) to confirm D when J ≪ D. The anisotropy of each compound was found to be easy-plane (D > 0) and range from ≈ 8–25 K. This work reveals a linear correlation between the ratio d(Ni-Lax)/d(Ni-Neq) and D although the ligand spectrochemical properties may play an important role. We assert that this relationship allows us to predict the type of magnetocrystalline anisotropy in tailored Ni(II) quantum magnets.<br><br>Data record consists of a zip archive containing data files in .dat format and an accompanying readme file. Data files are named according to the corresponding figures in the related publication. Further information on specific data files can be found in the accompanying readme file. 2020-04-27T00:00:00Z Dataset Dataset 10.82444/warw.33797668.v1 https://figshare.com/articles/dataset/Data_for_Enhancing_easy-plane_anisotropy_in_bespoke_Ni_II_quantum_magnets/33797668 CC BY 4.0