tungsten and manganesecarbonyls with several thiazole heterocycle ligands yielded a number of coordinated transition metal complexes 1–10. Of these complexes 1–6 are new compounds which have not been reported to date. The structures of new compounds were characterized by FT-IR and 1H-NMR spectroscopy as well as single-crystal X-ray diffraction analysis. Complexes 1–10 are carbonmonoxidereleasing molecules