The crystal structures of two 2-methoxycarbonylethyltin trichloride adducts

Abstract

The crystal structures of two adducts of 2-methoxycarbonylethyltin trichloride with hexamethylphosphoryltriamide (HMPA) and 1,10-phenanthroline (phen), CH3OCOCH2CH2SnCl3·L (L=HMPA, 1; L=phen, 2), have been determined. The tin atom in 1 is six-coordinated and adopts a distorted [CSnCl3O2] octahedral geometry involving an oxygen atom of HMPA and an oxygen atom of intramolecularly coordinating carbonyl group (Sn-O 2.462(2) Å). The tin atom in 2 is also six-coordinated and possesses a distorted [CSnCl3N2] octahedral geometry with two nitrogen atoms of a chelating phenanthrolin. The carbonyl oxygen atom does not coordinate to the tin center (Sn···O 4.985(2) Å).

Keywords

• 2-methoxycarbonylethyltin trichloride
• molecular adduct
• organotin
• x-ray diffraction analysis