A Novel 2:3 Condensation Complex of Salicylaldoxime and Di-n-butyltin(IV) Oxide. [Erratum to document cited in CA120:217961]

X-ray Diffraction and 2D Gradient-Assisted 1H−119Sn HMQC NMR Studies of Structures Obtained from Nucleophilic Substitutions on Dimethyltin(IV) Salicylaldoximates

“…Novel structures resulting from condensation reactions of a diorganotin(IV) oxide, R 2 SnO (R = n-Bu,1a Me 1b ), with salicylaldoxime, o -HONCHC 6 H 4 -OH, hereafter HONZOH, have recently been elucidated 1 by X-ray diffraction and gradient-assisted 2D 1 H− 13 C and 1 H− 119 Sn HMQC 3a /HMBC 3b,c NMR spectroscopy ) .…”

“…Novel structures resulting from condensation reactions of a diorganotin(IV) oxide, R 2 SnO (R = n-Bu,1a Me 1b ), with salicylaldoxime, o -HONCHC 6 H 4 -OH, hereafter HONZOH, have recently been elucidated 1 by X-ray diffraction and gradient-assisted 2D 1 H− 13 C and 1 H− 119 Sn HMQC 3a /HMBC 3b,c NMR spectroscopy ) . The noncrystalline compounds [(R 2 Sn) 2 (R 2 SnO)(ONZOH)(HONZO)(ONZO)] ( 1b , R = n -Bu; 2b , R = Me) (Figure ) are the key intermediates in the synthesis of such clusters 1b.…”

“…These compounds are small clusters displaying two unequivalent salicylaldoximate and three diorganotin moieties linked by Sn−O−Sn bridges, with one seven-coordinate (Sn1) and two five-coordinate (Sn2 and Sn3) tin atoms (Figure ) . The noncrystalline compounds [(R 2 Sn) 2 (R 2 SnO)(ONZOH)(HONZO)(ONZO)] ( 1b , R = n -Bu; 2b , R = Me) (Figure ) are the key intermediates in the synthesis of such clusters 1b. Cyclohexane, hexane, acetonitrile, or methanol solutions of 1b give rise to crystals having structure 1a instead of 1b 1a.…”

“…The noncrystalline compounds [(R 2 Sn) 2 (R 2 SnO)(ONZOH)(HONZO)(ONZO)] ( 1b , R = n -Bu; 2b , R = Me) (Figure ) are the key intermediates in the synthesis of such clusters 1b. Cyclohexane, hexane, acetonitrile, or methanol solutions of 1b give rise to crystals having structure 1a instead of 1b 1a. Compound 2b gives rise to crystalline materials only from low molecular weight alcohols, T-OH (T = Me, Et, n -Pr, i -Pr), providing, respectively, compounds 3a − d instead of 2b or 2a 1b.…”

“…Cyclohexane, hexane, acetonitrile, or methanol solutions of 1b give rise to crystals having structure 1a instead of 1b 1a. Compound 2b gives rise to crystalline materials only from low molecular weight alcohols, T-OH (T = Me, Et, n -Pr, i -Pr), providing, respectively, compounds 3a − d instead of 2b or 2a 1b. These structural changes occur during the crystallizations according to the reaction in Scheme .…”