Two CoⅡ-based complexes, {[Co(dps)2(N3)2]·H2O} (1) and [Co(dps)2(N3)2] (2), show a 1D chain and a 3D network, respectively. The central CoⅡ ions in the complexes have the same coordination environment with the [Co(dps)4(N3)2] unit. Although the differences in crystal parameters are nearly negligible, their magnetic properties are very different. AC susceptibility data show that 1 behaves as a typical field-induced single-ion magnet (SIM) with the out-of-phase (χM'') signals, while 2 shows ac signals of χM'' without peaks even under applied dc filed within our measurement window. Far-IR magneto-spectra (FIRMS) show strong spin-phonon couplings at 0 T in 2, likely making the magnetic relaxation in 2 fast, while the couplings are negligible in 1. Small spin-phonon coupling in 1 likely leads to slower magnetic relaxation, making 1 a SIM. The difference in the properties is due to the structural rigidity of 2 in its 3D network, leading to stronger spin-phonon coupling. Combined high-field EPR (HF-EPR) and FIRMS studies give spin-Hamiltonian parameters, including D = 64.0(9) cm-1, E = 15.7(2) cm-1 for 1 and D = 80.0(2) cm-1, E = 19.0(1) cm-1 for 2.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |