Synthesis, Spectroscopic Studies and Crystal Structures of [Et₂Sn(O₂AsMe₂)₂] and [Ph₂Sn(O₂AsMe₂)(μ‐OMe)]₂

Abstract

Et 2 Sn(O 2 AsMe 2 ) 2 ] (1) and [Ph 2 Sn(O 2 AsMe 2 )(μ-OMe)] 2 (2) were synthesized by treatment of Et 2 SnO and Ph 2 SnS with HO 2 AsMe 2 in Methanol, respectively. The compounds were characterized by elemental analyses, vibrational spectroscopy and mass spectrometry. According to X-ray diffraction measurements compound 1 crystallizes monoclinic in space group P2 1 /n with cell parameters a = 804.89 (3), b = 987.11(5), c = 966.42(4) pm, β = 113.354(3)°. The unit cell param-* Dr. F. Weller

Between MOFs and molecules: organolead(IV) compounds with chain structures

“…Meanwhile, the bands at 291 (IR) and 290 cm À1 (Raman) in the spectra of Ph 3 PbCl in benzene or cyclohexane solution were assigned to nonbridged (PbCl) (Preut & Huber, 2006). The mass spectra of organotin dimethylarsinates show the [SnO 2 AsMe 2 ] + ion with considerable intensities (Shihada & Weller, 2008, 2011Shihada et al, 2009). Analogously, the [PbO 2 AsMe 2 ] + and [PbO 2 PPh 2 ] + ions were observed in the mass spectra of (1) and 3, respectively.…”

“…With these ligands, several organotin(IV) compounds have been synthesized and characterized. [R 2 Sn(O 2 AsMe 2 ) 2 ] [R = Et (Shihada & Weller, 2011) and R = Bu (Shihada et al, 2009) (Shihada & Weller, 2008) show dimeric structures with eight-membered [(SnOAsO) 2 ] rings, in which the Sn atoms are also bridged by methoxo groups, forming four-membered Sn 2 O 2 rings. In addition, polymeric chain structures with bidentate bridging [O 2 AsMe 2 ] groups have been found in [R 2 ClSnO 2 AsMe] {R = Me or Et (Shihada & Weller, 2002) and R = Bu and [Ph 3 SnO 2 AsMe 2 ] (Shihada & Weller, 2008)}.…”