Six-co-ordinate tris(bidentate ligand) tin(IV) complexes

C I F  DENEKAMP; D F  EVANS; J  PARR; J D  WOOLLINS

doi:10.1039/DT9930001489

Six-co-ordinate tris(bidentate ligand) tin(IV) complexes

C I F DENEKAMP, D F EVANS, J PARR, J D WOOLLINS

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Abstract

New six-co-ordinate tris(bidentate ligand) complexes of tin(IV) with O,O' ligands have been prepared and characterised by H-1 and Sn-119 NMR spectroscopy, elemental analysis and mass spectrometry. The Sn-119 NMR spectra of the symmetrical complexes reveal the interaction of the three ligands with the tin nuclei. Long range 4J(Sn-H) and 5J(Sn-H) coupling is observed. Comparison with the corresponding silicon complexes shows a linear relationship between the chemical shifts of the Sn-119 and Si-29 nuclei. Tin-119 NMR spectroscopy indicates that the tin(IV) complexes are six-co-ordinate species, except for the Sn(trop)3X (Htrop = tropolone, X = Cl, Br or I) complexes which are seven-coordinate. Mixed mono- and di-basic bidentate ligand complexes form neutral six-co-ordinate complexes.

Original language	English
Pages (from-to)	1489-1492
Number of pages	4
Journal	Journal of the Chemical Society, Dalton Transactions
Issue number	10
DOIs	https://doi.org/10.1039/DT9930001489
Publication status	Published - 21 May 1993

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title = "Six-co-ordinate tris(bidentate ligand) tin(IV) complexes",

abstract = "New six-co-ordinate tris(bidentate ligand) complexes of tin(IV) with O,O' ligands have been prepared and characterised by H-1 and Sn-119 NMR spectroscopy, elemental analysis and mass spectrometry. The Sn-119 NMR spectra of the symmetrical complexes reveal the interaction of the three ligands with the tin nuclei. Long range 4J(Sn-H) and 5J(Sn-H) coupling is observed. Comparison with the corresponding silicon complexes shows a linear relationship between the chemical shifts of the Sn-119 and Si-29 nuclei. Tin-119 NMR spectroscopy indicates that the tin(IV) complexes are six-co-ordinate species, except for the Sn(trop)3X (Htrop = tropolone, X = Cl, Br or I) complexes which are seven-coordinate. Mixed mono- and di-basic bidentate ligand complexes form neutral six-co-ordinate complexes.",

author = "DENEKAMP, {C I F} and EVANS, {D F} and J PARR and WOOLLINS, {J D}",

year = "1993",

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doi = "10.1039/DT9930001489",

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T1 - Six-co-ordinate tris(bidentate ligand) tin(IV) complexes

AU - DENEKAMP, C I F

AU - EVANS, D F

AU - PARR, J

AU - WOOLLINS, J D

PY - 1993/5/21

Y1 - 1993/5/21

N2 - New six-co-ordinate tris(bidentate ligand) complexes of tin(IV) with O,O' ligands have been prepared and characterised by H-1 and Sn-119 NMR spectroscopy, elemental analysis and mass spectrometry. The Sn-119 NMR spectra of the symmetrical complexes reveal the interaction of the three ligands with the tin nuclei. Long range 4J(Sn-H) and 5J(Sn-H) coupling is observed. Comparison with the corresponding silicon complexes shows a linear relationship between the chemical shifts of the Sn-119 and Si-29 nuclei. Tin-119 NMR spectroscopy indicates that the tin(IV) complexes are six-co-ordinate species, except for the Sn(trop)3X (Htrop = tropolone, X = Cl, Br or I) complexes which are seven-coordinate. Mixed mono- and di-basic bidentate ligand complexes form neutral six-co-ordinate complexes.

AB - New six-co-ordinate tris(bidentate ligand) complexes of tin(IV) with O,O' ligands have been prepared and characterised by H-1 and Sn-119 NMR spectroscopy, elemental analysis and mass spectrometry. The Sn-119 NMR spectra of the symmetrical complexes reveal the interaction of the three ligands with the tin nuclei. Long range 4J(Sn-H) and 5J(Sn-H) coupling is observed. Comparison with the corresponding silicon complexes shows a linear relationship between the chemical shifts of the Sn-119 and Si-29 nuclei. Tin-119 NMR spectroscopy indicates that the tin(IV) complexes are six-co-ordinate species, except for the Sn(trop)3X (Htrop = tropolone, X = Cl, Br or I) complexes which are seven-coordinate. Mixed mono- and di-basic bidentate ligand complexes form neutral six-co-ordinate complexes.

U2 - 10.1039/DT9930001489

DO - 10.1039/DT9930001489

M3 - Article

SN - 0300-9246

SP - 1489

EP - 1492

JO - Journal of the Chemical Society, Dalton Transactions

JF - Journal of the Chemical Society, Dalton Transactions

IS - 10

ER -

Six-co-ordinate tris(bidentate ligand) tin(IV) complexes

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