Binuclear organometallic compounds. Part IX. Nuclear magnetic double resonance studies of tin-119 chemical shifts in compounds with transition metal-to-tin bonds
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 4,p. 311-316
- https://doi.org/10.1039/dt9750000311
Abstract
The magnetic shieldings determined by heteronuclear double resonance are reported for 35 organotin compounds containing transition-metal atoms. Exceptionally low-field chemical shifts in species with light transition-metal atoms were attributed to a large paramagnetic contribution arising from small average excitation energies associated with dπ–dπ bonding. Heavier transition metals increase the tin shielding but there is no apparent correlation with the s-electron density on the tin atom.Keywords
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