Key points are not available for this paper at this time.
The hydrothermal reaction of manganese dichloride with the potassium salt of benzene-1, 3, 5-tricarboxylic acid at 220 °C gives Mn3C6H3 (CO2) 3-1, 3, 52 which exhibits two pathways for antiferromagnetic coupling.
Gutschke et al. (Mon,) studied this question.