A 119Sn NMR and Mössbauer study of some di- and tri-alkyltin(IV) alkoxides☆

Publisher Summary This chapter describes the measurement of, and factors influencing, 1I9 Sn chemical shifts of organotin compounds. Elemental tin contains 10 naturally occurring isotopes, and only three of these have nonzero nuclear magnetic moments: 115 Sn, 117 Sn, and 119 Sn. Each of the three magnetic tin isotopes has a nuclear spin of 4 and therefore zero quadrupole moment. All three isotopes have approximately equal nuclear magnetic moments. However, in nuclear magnetic resonance (NMR) investigations of tin compounds, the chemical shifts are usually measured for 119 Sn nuclei because of the greater intensity of their NMR signals and because of their higher natural abundance. Fourier transform (FT) NMR spectroscopy, although used extensively to study 13 C and 15 N nuclei, has only very recently been applied to 119 Sn. Pulse FT NMR has been used to study the spin-lattice relaxation times, T 1 , of l19 Sn in a number of organic and inorganic tin compounds. The most important relaxation mechanism for this nucleus in a series of tetraorganotins appears to be spinrotation (SR), although for larger molecules, such as hexabutylditin, dipole–dipole (DD) relaxation is important, even at room temperature.

Chemical Shifts of 119Sn Nuclei in Organotin Compounds

Studies on dialkyltin diacetate derivatives

Synthesis and configurations of organotin oxinates

Hydrocarbons are ubiquitous in our daily lives due to their use as commodity materials (e.g. polyethylene) and fuels. Heavier Group 14 element hydrides, termed herein as “inorganic hydrocarbon analogues”, often exhibit divergent reactivity with respect to their organic congeners. In addition to expanding our general knowledge with respect to periodic trends, inorganic Group 14 hydrides have a prominent role in industry as gaseous, and now liquid-phase, precursors to semi-conducting films; furthermore, these species have been successfully used to prepare nanomaterials of controllable shape and function. This Review covers these exciting fields of study along with providing computationally-derived insights from the literature as they pertain to the reactivity and structural diversity of inorganic hydrocarbon analogues (118 references).

Group 14 inorganic hydrocarbon analogues

Organotin chemistry : VII. The NMR spectra of a distannoxane

The preparation of di-n-butylmagnesium-N,N,N′,N′tetramethylethylenediamine complex from a non-ethereal grignard

Organotin chemistry. 16. Reactions of stannane with organic functional groups

This invention comprises a method for producing organotin trihalides comprising reacting as reactants trihalostannous acid, HSnX3, wherein X is halogen, in an ethereal solution, and a compound selected from the group consisting of Alpha -olefinic compounds and cycoolefinic compounds and recovering said organotin trihalide compounds.

William J. Considine

Papers

Organotin chemistry : VII. The NMR spectra of a distannoxane

The preparation of di-n-butylmagnesium-N,N,N′,N′tetramethylethylenediamine complex from a non-ethereal grignard

Organotin chemistry. 16. Reactions of stannane with organic functional groups

Addition of trihalostannous acid to olefins

Process for producing organopolysiloxanes