Synthesis and characterization of triphenyl-, tri-n-butyl and di-n-butyltin derivatives of 4-carboxybenzo-18-crown-6 and -15-crown-5

摘要

~1H-, ~(13)C- and ~(117)Sn-NMR as well as ~(119m)Sn Mossbauer spectroscopy, electrospray mass spectrometry and elemental analysis of novel trioganotin and di-n-butyltin derivatives of 4-carboxybenzo-18-crown-6 and -15-crown-5 are reported. The X-ray crystal structure of aquatriphenyltin-4,7,10,13,16-pentaoxadicyclo[13.4.0]nonadeca-1,3(17),18-trienecarboxylate hydrate consists of trigonal bipyramidal tin with a C_3 trigonal plane and the axial positions occupied by an oxygen atom, derived from a monodentate carboxylate ligand, and a water molecule. In the lattice, the crown ether portions of the molecules are capped on either side, via hydrogen bonding interactions, by the coordinated and uncoordinated water molecules.