Properties of 2,7-Naphthyridine

Reported physical data for 1,5-naphthyridine may be found by reference to its entry in the Appendix Table A1 toward the end of this book. More notable studies of such data are briefly listed here in alphabetical order. 

Complexes. The iodine complexes of 1,5-naphthyridine and other heterocycles have been used under anhydrous conditions to estimate the pK.t values for such heterocycles.885 The structures of 1 1 complexes of 1,5-naphthyridine with oxalic acid,1024 fumaric acid,1024 or meso- 1,2-diphenyl- 1,2-ethane-diol1021 have been studied. Complexes of 1,5-naphthyridine with Co(II), Ni(II), Cu(II), Zn(II), and Ag(I) salts have been prepared 705 the mono- and 

Crystal Structure. The X-ray crystal structures for anhydrous and hydrated 1, 

5-naphthyridine have been measured using various refinements.  

The bond lengths so obtained appear to confirm those predicted by calculation.1241 

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