A selective chemosensor for detection of Ag(I) and Cu(I) based on an acenaphthoquinone derivative and its complexes

Spectral, Molecular Modeling, and Biological Activity Studies on New Schiff’s Base of Acenaphthaquinone Transition Metal Complexes

“…e Ni(II) atom deviated from the acenaphthaquinone plane where the C nph-n -C nph-o -O-Ni and C nph-o -C nph-n -N 1 -Ni angles were 14.34 and -6.51°, respectively. Likewise, the bond lengths exhibited another type of distortion as the Ni-S bond was longer than M-N 1 and M-O bonds by ∼ 0.5Å but all were in accordance with the similar complexes reported previously [28,67] (Tables S1-S3).…”

“…e bond angle data cleared that the complex has a small degree of distortion as, for example, the O-Co-N 1 , S-Co-N 1 , and O-M-S were 92.30, 86.94, and 97.02°, respectively, which are higher or lower than the ideal value (90°). Furthermore, another type of distortion was observed from the bond length data as the Co-S, 2.24Å, was longer than M-N 1 and M-O, 1.86 and 1.92Å, respectively, but compatible with the corresponding X-ray values [28,67] (Tables S1-S3).…”

“…Likewise, the thiosemicarbazone moiety was planar and coplanar with acenaphthaquinone where N 1 -N 2 -CS-N 4 and N 2 -C S -N 4 -C allyl were 0.28 and 179.44°, respectively (Figure 9(a)). e ligand's bond lengths presented almost matched those obtained from single-crystal X-ray data of similar compounds [67], differences in 0.1 to 0.2Å range (Table S2). e azomethine bond angle, N 2 -N 1 -C nph-n , exhibited an ideal value for the sp 2 hybridization, 120.57°, while the carbonyl group suffered from small distortion from the standard value, 126.59°.…”