The synthesis, crystal structure, magnetic properties, and single-molecule conductance of two new trinuclear metalstringcomplexes, [Ni3(dzp)4(NCS)2] (2) and [Co3(dzp)4(NCS)2] (3), containing the rigid Hdzp ligand (1, 1,9-diazaphenoxazine) are reported. X-ray structural analyses show that compounds 2 and 3 exhibit smaller torsion angles and longer metal–metal distances than those exhibited by the