“…These compounds are important from the standpoint of catalysis, biological mimicry, multi electron-transfer reactions and metal-metal interactions [10][11][12]. Since the pioneering works of Johnson et al [13,14], some dinuclear rhenium complexes containing linear or bent Re 2 O 3 unit with aromatic N-donor ligands, such as pyridine, pyrazine, pyrimidine, 3,5-lutidine, 1,5,6-trimethylbenzimidazole, have been investigated structurally, spectroscopically and electrochemically [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].Furthermore, the radioisotopes 186 Re (1.07 MeV β-emitter, t1/ 2 90 h) and 188 Re (2.12 MeV β-emitter, t 1/2 17 h) are two of the most attractive isotopes for applications in targeted radionuclide therapy [31]. Although kit preparations for the imaging of almost all main organs and organ systems exist and there is some experience in the labeling of biomolecules, there is still a need for new approaches and new labeling procedures.…”