The effect of solvent upon the rates and mechanisms of organometallic reactions

Petrosyan, V. S.; Yashina, N. S.; Reutov, O. A.; Bryuchova, E. V.; Семин, Г. К.

doi:10.1016/s0022-328x(00)95153-2

Cited by 56 publications

(2 citation statements)

References 16 publications

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“…In contrast, the 119m Sn-Mössbauer spectrum of 1 appears to consist of a single resonance maximum, despite the obvious lack of cubic symmetry around the metal atom. In the present case, the three SnϪCH 3 lic iron absorbance (upper trace) and a BaSnO 3 absorber spectrum absorbance (lower trace) at room temperature and the single SnϪC Cp bonds, although clearly not of T d symmetry, give rise to four sp 3 -hybrid orbitals on the tin atom which are sufficiently similar to produce a very small account for the infinite chain formation suggested by the NQR data of Petrosyan et al, [37] but the theoretical calcu-field gradient at the Mössbauer-active atom site. [29Ϫ33] When lone-pair Figure 4.…”

Section: Scheme 1 Synthesis Of Complexes 2ϫ7supporting

confidence: 47%

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

Herberhold¹,

Milius

Steffl

et al. 1999

Eur. J. Inorg. Chem.

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Section: Scheme 1 Synthesis Of Complexes 2ϫ7supporting

confidence: 47%

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

Herberhold¹,

Milius

Steffl

et al. 1999

Eur. J. Inorg. Chem.

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“…For D2£-Pnma there are two crystallographical inequivalent Br-atoms with the ratio 2:1, while for C2v-Pan21 all three Br-atoms in the molecule are independent. Petrosyan et al have studied the 81Br-NQR at T = 77 K and have found two resonance frequences (138.02 MHz and 148.34 MHz) with intensity ratio 1:2 [18]. The NQR results confirm that the space group D^-Pnma is the right one.…”

Section: Discussionmentioning

confidence: 89%

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

Zhang

Dou

Weiß

1991

Zeitschrift Für Naturforschung A

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The molecular motion in (CH3)3XC1, X = Sn and Pb has been investigated by measurement of the second moment M2(xH) as function of temperature in the range 95 < T,/K<345. The methyl groups in both compounds rotate freely over the whole temperature range studied. In (CH3)3SnCl the C'3-rotation of (CH3)3Sn-group about the Sn CI axis sets in above 273 K. To explain the NMR and INS results, the crystal structures of (CH3)3PbCl and CH3SnBr3 were determined by single X-ray diffraction. (CH3)3PbCl crystallizes in a monoclinic space group C2-C2, a = 1276.7(3) pm, £ > = 982.3(3) pm, c = 547.0(2) pm, 0 = 91.12(1)°; Z = 4, Ä = 0.035. CH3SnBr3 crystallizes in an or thorhombic space group D^-Pnma, a = 643.0(3) pm, b= 1005.3(4) pm, c= 1148.0(4) pm; Z = 4, R =0.057.M o le c u la r M o tio n s in ( C H 3) 3XC1, X = S n a n d P b .

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1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent57Fe- and119Sn-Mössbauer Spectroscopy, and Electrochemistry

Herberhold¹,

Milius²,

Steffl³

et al. 1999

Eur. J. Inorg. Chem.

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The 1,1′‐bis(chlorostannyl)‐substituted ferrocenes Fe(C5H4–SnMe2Cl)2 (2), Fe(C5H4–SnMeCl2)2 (3) and Fe(C5H4–SnCl3)2 (4) were prepared, starting from 1,1′‐bis(trimethylstannyl)ferrocene (1). Treatment of the chlorides with Li[AlH4] afforded the 1,1′‐bis(hydridostannyl)‐subsituted ferrocenes Fe(C5H4–SnMe2H)2 (5), Fe(C5H4–SnMeH2)2 (6) and Fe(C5H4‐SnH3)2 (7), respectively. All complexes 1–7 were studied by 1H‐, 13C‐, and 119Sn‐NMR spectroscopy with 1D and 2D techniques. The compounds 1–4 were investigated by temperature‐dependent 119Sn‐ and 57Fe‐Mössbauer spectroscopy. The electrochemistry of 1–5 gave evidence of reversible one‐electron oxidation processes. The molecular structure of 1,1′‐bis(trichlorostannyl)ferrocene (4) was determined by X‐ray structural analysis, and there was no indication of intra‐ or intermolecular Sn···Cl···Sn interactions. This direct structural information proved to be consistent with both the Mössbauer and the solution NMR spectroscopic data.

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The effect of solvent upon the rates and mechanisms of organometallic reactions

Cited by 56 publications

References 16 publications

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent57Fe- and119Sn-Mössbauer Spectroscopy, and Electrochemistry

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The effect of solvent upon the rates and mechanisms of organometallic reactions

Cited by 56 publications

References 16 publications

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent 57Fe- and 119Sn-Mössbauer Spectroscopy, and Electrochemistry

Molecular Motions in (CH3)3XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH3)3PbCl and CH3SnBr3

1,1′-Bis(stannyl)- and 1,1′-Bis(chlorostannyl)ferrocenes Studied by Multinuclear Magnetic Resonance, Temperature-Dependent57Fe- and119Sn-Mössbauer Spectroscopy, and Electrochemistry

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Molecular Motions in (CH₃)₃XCl, X = Sn and Pb. NMR Investigations and Crystal Structure Study of (CH₃)₃PbCl and CH₃SnBr₃