Complexes of organometallic compounds. L. The correlation between 119Sn mössbauer isomer shifts and calculated partial charges on tin in adducts of tin(IV) and organotin(IV) halides with phosphorus and oxygen donors

Barbieri, Rainer; Silvestri, Arturo

doi:10.1016/s0020-1693(00)89331-7

Search citation statements

Order By: Relevance

Paper Sections

Select...

1 Isomer Shift1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1993

1998

Publication Types

Select...

Article5

Book1

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 15 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• Six-coordinated Sn, octahedral structures: complexes of Snhalt, RSnCh, R2SnCb, Me3SnCI, with mono-and bidentate ligands coordinating P, ° and N atoms [84,85].…”

Section: 1 Isomer Shiftmentioning

confidence: 99%

119mSn Mössbauer studies on tin compounds

Barbieri¹,

Huber²,

Pellerito³

et al. 1998

Chemistry of Tin

View full text Add to dashboard Cite

“…• Six-coordinated Sn, octahedral structures: complexes of Snhalt, RSnCh, R2SnCb, Me3SnCI, with mono-and bidentate ligands coordinating P, ° and N atoms [84,85].…”

Section: 1 Isomer Shiftmentioning

confidence: 99%

119mSn Mössbauer studies on tin compounds

Barbieri¹,

Huber²,

Pellerito³

et al. 1998

Chemistry of Tin

View full text Add to dashboard Cite

Organometallic Complexes with Biological Molecules, VI. Diorganotin(IV) and Triorganotin(IV) Ampicillin and Methicillin Derivatives: Spectroscopic Investigations in the Solid State

Pellerito

Maggio

Fiore

et al. 1996

Appl. Organometal. Chem.

View full text Add to dashboard Cite

Derivatives of D(‐)–α‐aminobenzylpenicillin (ampicillin) and of 2,6‐dimethoxyphenylpenicillin (methicillin) with diorgano‐ and triorgano‐tin(IV) moieties have been synthesized. The stoichiometries of the compounds obtained were of the type R2SnClL·H2O, R3SnClL·H2O [L=ampicillin or methicillin monoanion; R=Me, Bu, Ph] and R2Snampic2· 2H2O (ampic=ampicillin; R=Me, Bu, Ph). For R2SnClL·H2O and R3SnClL Na· ‐ H2O, infrared (IR) data suggest five‐coordination around the tin(IV) atom; in R2Snampic2· 2H2O six‐coordination is most likely to occur. Thermogravimetric (TG) analysis excludes any involvement in the coordination of tin(IV) by water molecules, in any of the compounds. Trigonal bipyramidal configurations in the solid state are proposed for both R2SnClL·H2O and R3SnClL Na·H2O (L=ampicillin or methicillin) on the basis of the above‐mentioned IR and Mössbauer data. As far as R2Snampic2·2H2O compounds are concerned, the coordination geometry at tin could be, as previously reported for analogous R2Snamox2.2H2O derivatives, skew‐trapezoidal bipyramidal, the monoanionic bidentate chelating ampicillin residue being in the trapezoidal plane and having bent axial organic groups. Electronegativity equalization procedures have been applied to idealized trigonal bipyramidal structures for R2SnClL·H2O and R3SnClL Na·H2O (L=ampicillin or methicillin) and to octahedral trans‐R2for R2Snampic2·2H2O, to estimate the partial atomic charges on the tin atoms, Q s n, which have been correlated with the isomer shift (δ) Mössbauer parameter.

show abstract