Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 254-60-4, Name is 1,8-Diazanaphthalene. In a document type is Article, introducing its new discovery., 254-60-4
For a long time, the cobalt(II) complex ([Co(napy)4](ClO4)2) (napy=1, 8-naphthyridine) has been considered as an eight-coordinate complex without any structural proof. After careful considerations, two complexes [Co(napy)2Cl2] (1) and [Co(napy)4](ClO4)2 (2) based on the bidentate ligand napy were synthesized and structurally characterized. X-ray single-crystal structural determination showed that the cobalt(II) center in [Co(napy)2Cl2] (1) is four-coordinate with a tetrahedral geometry (Td), while [Co(napy)4](ClO4)2 (2) is seven-coordinate rather than eight-coordinate with a capped trigonal prism geometry (C2v). Direct-current (dc) magnetic data revealed that complexes 1 and 2 possess positive zero-field splitting (ZFS) parameters of 11.08 and 25.30 cm?1, respectively, with easy-plane magnetic anisotropy. Alternating current(ac) susceptibility measurements revealed that both complexes showed slow magnetic relaxation behaviour. Theoretical calculations demonstrated that the presence of easy-plane magnetic anisotropy (D>0) for complexes 1 and 2 is in agreement with the experimental data. Furthermore, these results pave the way to obtain four-coordinate and seven-coordinate cobalt(II) single-ion magnets (SIMs) by using a bidentate ligand.
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Reference£º
1,140-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N134 – PubChem