Hendricker, David G. published the artcileNaphthyridine complexes of Group VIb metal carbonyls, SDS of cas: 14903-78-7, the publication is Inorganic Chemistry (1969), 8(3), 685-7, database is CAplus.
M(CO)6 (M = Cr, Mo, W) and 2,7-dimethyl-1,8-naphthyridine (L) were refluxed in octane to afford M(CO)4L which were characterized by ir spectra. Also prepared were M(CO)4L’ (L’ = 2,9-dimethyl-1,10-phenanthroline). The ir spectra of M(CO)4L and M(CO)4L’ in the CO stretching region are very similar in number, position, and intensity of absorptions of the analogous complexes of 2,2′-bipyridine and 1,10-phenanthroline. The π-bonding ability of L and L’ is discussed on the basis of the force constants Preliminary investigations of substitution reactions of M(CO)4L with various monodentate ligands indicate that the reaction rate is similar to that reported for complexes containing 5-member chelate rings and thus suggests similar labilizing properties.
Inorganic Chemistry published new progress about 14903-78-7. 14903-78-7 belongs to naphthyridine, auxiliary class 6.6_Aromatics,Naphthyridines, name is 2,7-Dimethyl-1,8-naphthyridine, and the molecular formula is C10H10N2, SDS of cas: 14903-78-7.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem