The previously reported synthesis of mononuclear cobalt(II) complex 1 allows its isolation on a gram-scale, enabling physical investigations that require such large amounts of sample. With this in mind, we worked on a procedure for 2 that would allow obtaining similar sample amounts. Although the structural motif of a radical bridged dinuclear Co(II) compound based on 1 was reported before in the complex [K(18-crown-6] 3 [Co(H 2 tmsab)] 2 (µ-tmsab)] (3), in that case the synthesis involved crystal sorting and gave yields of milligram amounts only. Hence, opportunities to conduct thorough physical studies were limited, precluding in-depth fundamental understanding.