Nuclear magnetic resonance studies and structural investigations of the chemistry of organotin compounds

Cunningham, Desmond; McManus, James; Hynes, Michael J.

doi:10.1016/0022-328x(90)87199-n

Cited by 23 publications

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“…As a consequence of the acidic character of the organotin(IV) cations, hydrolysis is the most important reaction undertaken by this class of compounds in aqueous solution, often leading to the formation of polynuclear hydroxo-complexes in solution (R n Sn) p (OH) q (p(4− n )−q) with p > 1, depending on the organotin(IV) cation concentration. The hydrolysis of organotin(IV) cations has been subject of investigation for more than fifty years by different research groups, − using different techniques. To give a contribution to the speciation of organotin(IV) compounds in natural waters, the hydrolysis of the mono-, di-, − and trimethyltin(IV) − cations has also been investigated in our laboratories in different ionic media and at different ionic strengths and temperatures.…”

Section: Introductionmentioning

confidence: 99%

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

et al. 2011

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The hydrolysis of methyltin(IV) cations at fairly high concentrations was investigated to evaluate the formation of polynuclear species in aqueous solution. The hydrolysis of monomethyltin(IV), dimethyltin(IV), and trimethyltin(IV) was studied by potentiometry at T = 298.15 K and at I = 1 mol 3 L -1 in NaNO 3 aqueous solutions. The results obtained gave evidence for the formation of the following polynuclear species, in addition to the mononuclear species already reported, which were also considered in the models proposed for the three systems investigated:, and [((CH 3 )Sn) 5 (OH) 11 ] 4þ for the monomethyltin(IV) system; [(, and [((CH 3 ) 2 Sn) 4 (OH) 6 ] 2þ for the dimethyltin(IV) system; [((CH 3 ) 3 Sn) and [((CH 3 ) 3 Sn) 2 (OH) 4 ] 2for the trimethyltin(IV) system. The formation constants β pq OH (relative to the equilibrium) can be expressed as a function of the cation charge z (z = 4n) by the general equation: log β pq OH /(p þ q) = 1 þ (2.50 ( 0.05)z, that allows the calculation of rough values of β pq OH for any (p,q) couple. The reliability of the proposed speciation models is discussed. As expected for a tricharged cation, by increasing the concentration of (CH 3 )Sn 3þ , the yield of polynuclear species becomes predominant; this behavior is less marked for (CH 3 ) 2 Sn 2þ and (CH 3 ) 3 Sn þ .

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Section: Introductionmentioning

confidence: 99%

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

et al. 2011

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Organometallic Polymers of Germanium, Tin and Lead

Jurkschat

Mehring

2009

Patai's Chemistry of Functional Groups

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Supramolecular Self‐Assembly by Formation of Secondary Bonds

Haiduc

Edelmann

1999

Supramolecular Organometallic Chemistry

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Nuclear magnetic resonance studies and structural investigations of the chemistry of organotin compounds

Cited by 23 publications

References 31 publications

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

Organometallic Polymers of Germanium, Tin and Lead

Supramolecular Self‐Assembly by Formation of Secondary Bonds

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Nuclear magnetic resonance studies and structural investigations of the chemistry of organotin compounds

Cited by 23 publications

References 31 publications

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L−1(NaNO3) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L−1(NaNO3) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

Organometallic Polymers of Germanium, Tin and Lead

Supramolecular Self‐Assembly by Formation of Secondary Bonds

Contact Info

Product

Resources

About

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species

Hydrolysis of Monomethyl-, Dimethyl-, and Trimethyltin(IV) Cations in Fairly Concentrated Aqueous Solutions atI= 1 mol·L⁻¹(NaNO₃) andT= 298.15 K. Evidence for the Predominance of Polynuclear Species