Citation: Ling-Yan Pang; Ping Liu; Cui-Ping Zhang; Xin Chen; Bo Chen; Yao-Yu Wang; Qi-Zhen Shi (2013). Four cobalt(II) complexes constructed from a butterfly-shaped tetracarboxylic acid with N-donor ligands: Structures, magnetism and influence of coordination modes on dihedral angles. Inorganica Chimica Acta, 403, pp. 43-52.