6533b835fe1ef96bd129fd99

RESEARCH PRODUCT

Über polystannane

Martin DrägerStefan Adams

subject

StereochemistryOrganic ChemistryCrystal structureNuclear magnetic resonance spectroscopyBiochemistryTolueneInorganic ChemistryBond lengthCrystallographychemistry.chemical_compoundchemistryX-ray crystallographyMaterials ChemistryMass spectrumMoleculePhysical and Theoretical ChemistryPolystannane

description

Abstract The compound I(t-Bu2Sn)4I has been synthesized by controlled cleavage of the related cyclotetrastannane (t-Bu2Sn)4 with iodine in toluene. Both compounds have been investigated by mass, NMR and vibrational spectra. I(t-Bu2Sn)4I: δ(119Snterminal) 67.7, δ(Sncentral) 17.4 ppm; 1J(SnSn) 2199 (terminal-central) and 1575 (central-central), 2J(SnSn) 20 (terminal-central), 3J (SnSn) 307 Hz (terminal-terminal); ν(SnSn) 119, ν(SnI) 167 cm−1. (t-Bu2Sn)4: δ(Sn) 87.4 ppm; ν(SnSn) 125 cm−1. The crystal structure of I(t-Bu2Sn)4I has been determined (R = 0.071): bond lengths SnSn 289.5(1) (terminal-central) and 292.4(1) (central-central), SnI 275.3(1) pm. The conformation of the chain ISn4I is all trans.

yearjournalcountryeditionlanguage
1985-06-01Journal of Organometallic Chemistry
https://doi.org/10.1016/0022-328x(85)80123-6