Molecular structures of [(Ph3Sn)2O3Se] and [(Ph3Sn)2O4Cr](CH3OH)

Intramolecularly Coordinated Group 14 and 15 Chalcogenites

“…According to a classification scheme recently introduced for eight-membered rings, 5 adopts a G-type arrangement . This well-defined dimeric structure of 5 contrasts with related triorganotin selenite [(Ph 3 Sn) 2 O 3 Se], consisting of polymers containing two types of tin centers …”

Organotin(IV) Complexes Containing Sn–O–Se Moieties: A Structural Inventory

“…A comparable framework was obtained for SeO 3 (SnPh 3 ) 2 (3), prepared from triphenyltin hydroxide and selenous acid. 20 Single crystals suitable for X-ray crystallographic analysis were grown in ethanol in the presence of Et 4 NI. In agreement with the 119 Sn NMR spectrum measured in the solid state (two resonances given at -69 and -99 ppm), two distinct geometries were observed for the tin atoms: (i) trigonal bipyramidal, and (ii) tetrahedral.…”

“…In solution, and based on 119 Sn NMR data recorded in CDCl 3 for 14 and 15 (92.6 and 23.3 ppm, respectively), fourcoordinate geometries are suggested for the tin atoms, being inconsistent with the macrocyclic structures isolated in the solid state. (20). 37 These compounds were synthesized from n-Bu 2 SnCl 2 and Me 2 Sn-Cl 2 , respectively, by reacting with four distinct areneselenic acids: 2-trifluoromethylbenzeneseleninic acid, 2-methoxybenzeneseleninic acid, 4-isopropylbenzeneseleninic acid and 4-ethylbenzeneseleninic acid, respectively, in the presence of sodium ethoxide.…”

Bis(dicyclohexylammonium) μ-oxalato-κ4O1,O2:O1′,O2′-bis[aqua(oxalato-κ2O1,O2)diphenylstannate(IV)]

“…For background to organotin(IV) chemistry, see: Ballmann et al (2009); Diallo et al (2007); Diassé -Sarr et al (1997); Ng et al (1992); Singh et al (2008); de Sousa et al (2007); Wang et al (2009); Xanthopoulou et al (2007Xanthopoulou et al ( , 2008; Zia-ur-Rahman et al (2007). For related Sn(IV) structures, see: Diop et al (2002Diop et al ( , 2003.…”

“…Data collection: COLLECT (Nonius, 2000); cell refinement: SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO (Otwinowski & Minor, 1997) and SCALEPACK; program(s) used to solve structure: SIR97 (Altomare et al, 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97. In the dynamic of our research work on organotin(IV) chemistry (Diallo et al, 2007;Diassé-Sarr et al, 1997) because of several applications found (Xanthopoulou et al, 2007(Xanthopoulou et al, , 2008Zia-ur-Rahman et al, 2007;Singh et al, 2008;Wang et al, 2009;Ballmann et al, 2009;de Sousa et al, 2007) and our interest in the coordinating behaviour of oxyanions in this family of compounds, we had yet reported the crystal structures of C 2 O 4 (SnPh 3 ) 2 (Diop et al, 2003) and SO 4 (SnPh 3 ) 2 .H 2 O (Diop et al, 2002) and have initiated here the study of the interactions between (Cy 2 NH 2 ) 2 C 2 O 4 .2H 2 O and C 2 O 4 (SnPh 3 ) 2 which has yielded the studied compound.…”