Search results for "Polystannane"

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Über polystannane

1985

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Sn…

StereochemistryOrganic ChemistryCrystal structureNuclear magnetic resonance spectroscopyBiochemistryTolueneInorganic ChemistryBond lengthCrystallographychemistry.chemical_compoundchemistryX-ray crystallographyMaterials ChemistryMass spectrumMoleculePhysical and Theoretical ChemistryPolystannaneJournal of Organometallic Chemistry
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