N-Methylbenzothiazole-2(3H)-selone, C₈H₇NSSe

Synthesis, characterization, and blood compatibility of copolymers of polyamidoamines and n‐vinylpyrrolidone

“…The C–Se distance of 1.815(4) Å falls within the 1.77–1.84 Å range reported for a wide variety of selenocarbonyl compounds,21, 30 with selenoketones falling in the lower end of that range 37. It is comparable with the value of 1.817(7) Å found for N ‐methylbenzothiadiazole‐2(3 H )‐selone 38. We note, however, that the C–Se distance in the selenium donor is elongated by 0.04–0.06 Å in charge‐transfer complexes that contain strong SeI bonds 35.…”

Synthesis and Redox Behaviour of the Chalcogenocarbonyl Dianions [(E)C(PPh2S)2]2−: Formation and Structures of Chalcogen–Chalcogen Bonded Dimers and a Novel Selone

“…[37] It is comparable with the value of 1.817 (7) found for N-methylbenzothiadiazole-2(3H)-selone. [38] We note, however, that the C-Se distance in the selenium donor is elongated by 0.04-0.06 in charge-transfer complexes that contain strong SeÀI bonds. [35] It thus seems reasonable to infer that the C=Se distance in 6 c, if it can be isolated, [31] will be significantly shorter than the value of 1.815(4) found for the LiI adduct.…”

Solid-state selenium-77 NMR

“…4d, by Demko, Eichele and Wasylishen [80], in apparent contradiction to the crystal structure that indicates only two independent molecules within the asymmetric unit. Recrystallization of the sample from methylene chloride yielded two crystalline forms, of which only one was suitable for X-ray diffraction [106]. ZORA DFT computations of the selenium chemical shift tensors predict that d 11 is approximately parallel to the CASe vector, d 33 perpendicular to the molecular plane, and that d 22 lies within the molecular plane and perpendicular to the CASe bond [80].…”