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Polymeric 3-(N-phosphonomethyl)glycinatotris(tri-n-butyltin)

Polymeric 3-(N-phosphonomethyl)glycinatotris(tri-n-butyltin) N-(Phosphonomethyl)glycine, glyphosate, reacts with bis(tributyltin) oxide to form a ligand-tin (1:3) complex in which all five O atoms are coordinated to tin. The complex, Sn3(C4H9)9(C3H5NO5P), is polymeric, with the glyphosate and two tributyltin groups forming a two-dimensional network and with the third Sn atom alternately above and below the plane of the net. The Sn atoms in the network have a trigonal-bipyramidal coordination, with O atoms in the axial positions and C atoms in the equatorial positions; the pendant tributyltin group is tetrahedrally coordinated to one O atom and to three butyl groups. Sn-O distances vary from 2.030 (3) to 2.408 (3) A. The Sn-O distances for O atoms trans to carboxylate groups are shorter than those trans to phosphonate groups and dSn-O decreases with increasing dC/P-O (Sn-O -4.6C/P-O). The amino N atom in the ligand is neither protonated nor involved in coordination to the Sn atoms. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section C: Crystal Structure Communications International Union of Crystallography

Polymeric 3-(N-phosphonomethyl)glycinatotris(tri-n-butyltin)

Polymeric 3-(N-phosphonomethyl)glycinatotris(tri-n-butyltin)


Abstract

N-(Phosphonomethyl)glycine, glyphosate, reacts with bis(tributyltin) oxide to form a ligand-tin (1:3) complex in which all five O atoms are coordinated to tin. The complex, Sn3(C4H9)9(C3H5NO5P), is polymeric, with the glyphosate and two tributyltin groups forming a two-dimensional network and with the third Sn atom alternately above and below the plane of the net. The Sn atoms in the network have a trigonal-bipyramidal coordination, with O atoms in the axial positions and C atoms in the equatorial positions; the pendant tributyltin group is tetrahedrally coordinated to one O atom and to three butyl groups. Sn-O distances vary from 2.030 (3) to 2.408 (3) A. The Sn-O distances for O atoms trans to carboxylate groups are shorter than those trans to phosphonate groups and dSn-O decreases with increasing dC/P-O (Sn-O -4.6C/P-O). The amino N atom in the ligand is neither protonated nor involved in coordination to the Sn atoms.

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References (8)

Publisher
International Union of Crystallography
Copyright
Copyright (c) 2001 International Union of Crystallography
ISSN
0108-2701
eISSN
1600-5759
DOI
10.1107/S0108270100018898
Publisher site
See Article on Publisher Site

Abstract

N-(Phosphonomethyl)glycine, glyphosate, reacts with bis(tributyltin) oxide to form a ligand-tin (1:3) complex in which all five O atoms are coordinated to tin. The complex, Sn3(C4H9)9(C3H5NO5P), is polymeric, with the glyphosate and two tributyltin groups forming a two-dimensional network and with the third Sn atom alternately above and below the plane of the net. The Sn atoms in the network have a trigonal-bipyramidal coordination, with O atoms in the axial positions and C atoms in the equatorial positions; the pendant tributyltin group is tetrahedrally coordinated to one O atom and to three butyl groups. Sn-O distances vary from 2.030 (3) to 2.408 (3) A. The Sn-O distances for O atoms trans to carboxylate groups are shorter than those trans to phosphonate groups and dSn-O decreases with increasing dC/P-O (Sn-O -4.6C/P-O). The amino N atom in the ligand is neither protonated nor involved in coordination to the Sn atoms.

Journal

Acta Crystallographica Section C: Crystal Structure CommunicationsInternational Union of Crystallography

Published: Mar 15, 2001

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