Metallkomplexe mit anionischen Liganden von Elementen der 4. Hauptgruppe, XI Homogene Trichlorstannidometallat(O)-Komplexe der 6. und 8. Nebengruppe/Metal Complexes with Anionic Ligands of Elements of the Main Group IV, XI Homogenous Trichlorostannido Metalate(O) Complexes of the Transition Groups VI and VIII

1978 ◽  
Vol 33 (11) ◽  
pp. 1291-1295 ◽  
Author(s):  
Thomas Krück ◽  
Werner Thielmann ◽  
Christian Sauer
Keyword(s):  
Ir Spectra ◽  
Metal Complexes ◽  
Uv Irradiation ◽  
Mössbauer Spectra ◽  
Main Group ◽  
Group Iv ◽  
Substitution Reactions ◽  
Mossbauer Spectra ◽  
Anionic Ligands ◽  
Thermal Substitution

Abstract Various homogeneous metalate(O) complexes are synthesized with [SnCl3] -as a ligand. Complexes of the type [M(SnCl3)6]6- are prepared from [M(CO)3(SnCl3)3]3-(M = Cr, Mo, W) in nitromethane. [Fe(SnCl3)5]5- is formed by UV irradiation of [Fe(CO)4SnCl3]- in aceto-nitrile. [M(SnCl3)4]4-(M = Ni, Pd, Pt) anions are synthesized by thermal substitution reactions with Ni(CO)4, Pd(PF3)4, and Pt(PF3)4. All metalate(O) ions are isolated as salts with the [N(C2H5)4]+ cation and characterized by IR spectra and 119mSn-Mössbauer spectra as well as by analysis.

Metallkomplexe mit anionischen Liganden von Elementen der 4. Hauptgruppe, V. 119mSn-Mößbauer-Untersuchungen an Trichlorstannido-metallat(0)-Komplexen des Typs [M(CO)5SnCl3]-(M = Cr, Mo, W) / Metal Complexes with Anionic Ligands of Elements of the Main Group IV, V. 119mSn-Mössbauer-Spectroscopic Investigations at Trichlorostannido Metalate(O) Complexes of the Type [M(CO)5SnCl3]- (M = Cr, Mo, W)

1974 ◽  
Vol 29 (3-4) ◽  
pp. 195-197 ◽  
Author(s):  
Thomas Kruck ◽  
Klaus Ehlert ◽  
Hermann J. Odenthal
Keyword(s):  
Metal Complexes ◽  
Isomer Shift ◽  
Quadrupole Splitting ◽  
Inverse Relationship ◽  
Main Group ◽  
Group Iv ◽  
Mossbauer Spectra ◽  
Spectroscopic Investigations ◽  
Anionic Ligands ◽  
Dividing Line

The 119mSn Mössbauer spectra of trichlorostannido pentacarbonyl metalates(O), [M(CO)5-SnCl3]- (M = Cr, Mo, W) 1-3, are reported and compared with the spectra of trichlorostannido complexes of manganese, iron, and platinum. With the isomer shift of β-tin. taken as dividing line between tin(II) and tin(IV) the compounds 1-3 can be regarded as tin(IV) derivatives with a noticeable π-backbonding ability of the SnCl3- ligand. There is an inverse relationship between the isomer shift and quadrupole splitting.

Metallkomplexe mit anionischen Liganden von Elementen der 4. Hauptgruppe, X Diskussion der Bindungsverhältnisse in Trihalogenstannidometallat(O)-Komplexen anhand der Ergebnisse von 119mSn-Mößbauer-Untersuchungen / Metal Complexes with Anionic Ligands of Elements of the Main Group IV, X 119mSn-Mössbauer-Spectroscopic Investigations and Bonding Properties of Trihalogenostannido Metalate(0) Complexes

1975 ◽  
Vol 30 (9-10) ◽  
pp. 696-698 ◽  
Author(s):  
Hermann J. Odenthal ◽  
Thomas Kruck ◽  
Klaus Ehlert
Keyword(s):  
Metal Complexes ◽  
Isomer Shift ◽  
Direct Relationship ◽  
Inverse Correlation ◽  
Main Group ◽  
Group Iv ◽  
Spectroscopic Investigations ◽  
Anionic Ligands ◽  
Bonding Properties ◽  
Back Bonding

The 119mSn and 57Fe Mößbauer spectra of the complexes [M(CO)6-n(SnX3)2]n- (n = 1,2,3,6) and [Fe(CO)4SnX3]- are reported. With increasing substitution of CO by [SnX3]-the isomer shift increases, reflecting also the π-acceptor strength of [SnX3]-. The π-back-bonding ability especially of [SnCl3]⁻ is similar to PCl3. A direct relationship between the isomer shift and the electronegativity of the halogen atoms of [SnX3]- and an inverse correlation between δ and Δ is observed.

scholarly journals Organometallphosphin-substituierte Übergangsmetallkomplexe, XXVII [1] Reaktionen von Pentacarbonylmangan-und Pentacarbonylrheniumbromid mit Organoelement(rVb)phosphinen / Organometalphosphine-Substituted Transition Metal Complexes, XXVII [1] Reactions of Pentacarbonylmanganese-and Pentacarbonylrheniumbromide with Organoelement(IVb) Phosphines

1981 ◽  
Vol 36 (6) ◽  
pp. 708-712 ◽  
Author(s):  
Herbert Schumann ◽  
Heinrich Neumann
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Mössbauer Spectra ◽  
Rhenium Complexes ◽  
Tert Butyl ◽  
Mossbauer Spectra ◽  
Dirhenium Complexes

Abstract The reactions of pentacarbonyl manganese bromide and pentacarbonyl rhenium bromide with di(tert-butyl)trimethylsilyl phosphine, teri-butyl-bis(trimethylsilyl)-, -(germyl)-, -(stannyl) phosphine, as well as with tris(trimethylsilyl)-, -(germyl)-, and -(stannyl) phosphine result in the elimination of one CO ligand and the formation either of corresponding bromo-tetracarbonyl(organometalphosphine)manganese or -rhenium complexes or of corresponding octacarbonyl-bis(μ-organometalphosphido)dimanganese or -dirhenium complexes. The IR, NMR, and Mössbauer spectra are reported and discussed.

scholarly journals Verteilung und Valenz der Kationen in Spinellsystemen mit Eisen und Vanadium, IIRöntgenographische Untersuchung, Seebeck Koeffizienten, Mößbauer-und IR-Spektren der Mischkristallreihen Fe2VO4-ZnV2O4 und Fe2VO4-ZnFe2O4 / Distribution and Valence of the Cations in Spinel Systems with Iron and Vanadium, IIX-ray Investigation, Seebeck Coefficients, Mössbauer and IR Spectra of the Solid Solutions Fe2VO4-ZnV2O4 and Fe2VO4-ZnFe2O4

1980 ◽  
Vol 35 (10) ◽  
pp. 1261-1267 ◽  
Author(s):  
Erwin Riedel ◽  
Norbert Pfeil
Keyword(s):  
Ir Spectra ◽  
Solid Solutions ◽  
Mössbauer Spectra ◽  
Tetrahedral Site ◽  
Seebeck Effect ◽  
Inverse Spinel ◽  
Lattice Constants ◽  
Mossbauer Spectra ◽  
Seebeck Coefficients ◽  
Charge Hopping

Abstract The spinel series Fe2VO4-ZnV2O4 and Fe2VO4-ZnFe2O4 have been prepared and investigated. The lattice constants and Mössbauer spectra lead to a distribution of cations which proves that Fe2VO4 is a partially inverse spinel with Fe(II) and Fe(III) on the tetrahedral site. The Seebeck effect is interpreted with a model of both tetrahedral and octahedral conduction based on charge hopping.

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