A spectroscopic study of tin(IV) complexes with multidentate Schiff bases

1,3,2‐Oxazastibinanes: Novel six‐membered heterocycles

“…The C O stretching vibration in 2 appears at 1126 cm −1 , which undergoes a shift toward higher frequency in the oxazastibinanes, which further confirms the participation of oxygen in C O Sb bonding [20,21]. Similar trend has been observed for the C N stretching vibration in these heterocyclic compounds indicating C N Sb bonding.…”

2,2,2‐triaryl‐4‐oxo‐1,3,2‐benzoxazastibinines

“…in salicylanilide undergoes a shift toward higher frequency in benzoxazastibininones, corroborating 2,2,2-Triaryl-4-oxo-1,3,2-benzoxazastibinines 623 SCHEME 1 the participation of oxygen in C O Sb bonding [21,22]. Similar trend has been observed for C N stretching vibration indicating C N Sb bonding [12][13][14].…”

Vibrational dynamics of the organometallic compound triarylorganoantimony (V) SbPh3[O2CC(OH)Ph2]2

“…An intense absorption peak is observed in FTIR spectra at 1280 cm −1 and it is calculated at 1279 cm −1 with vibrational modes as ν(C-O) adj-r (45%), ν(C-C) r-ad-co (34%) and ν(C-C) adj-r (15%). The phenolic mode ν(C-O) is reported at 1280 cm −1 [18], which confirms the participation of oxygen in the in-plane bending (Sb-O-C) and (C-Sb-O) [19,20]. A strong peak observed at 996 cm −1 in FTIR spectra which is calculated at 1005 cm −1 is attributed to the vibrational modes ν(C-O) adj-r (41%) mixed with ν(C-C) r-adj-co (27%).…”