Two air-stable, isostructural, mononuclear six-coordinate manganese(II) and cobalt(II) oxamate complexes, [M(4-HOpa)₂(H₂O)₂] [4-HOpa = N-4-hydroxyphenyloxamate; M= Mn²⁺ (1) or Co²⁺ (2)], exhibit field-induced slow magnetic relaxation. A bottleneck process is observed throughout the temperature range of 2–20 K for 1, while for 2, it dominates only at low temperatures (2–4 K). Additionally, the Raman process [n = 6.9(2)] is responsible for an increase in the relaxation time at higher temperatures to 2.

中文翻译：

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六坐标单核锰（II）和草酸钴（II）配合物的场诱导慢磁弛豫。

两种空气稳定的，同构的单核六配位锰（II）和草酸钴（II）配合物，[ M（4-HOpa）₂（H ₂ O）₂ ] [4-HOpa = N -4-羟基苯基草氨酸；M＝ Mn ²⁺（1）或Co ²⁺（2）]，表现出场诱导的慢磁弛豫。对于1，在2–20 K的整个温度范围内均观察到瓶颈过程，而对于2，仅在低温（2-4 K）时才占主导地位。此外，拉曼过程[ n = 6.9（2）]导致高温下的弛豫时间增加至2。