TY - JOUR A1 - Hausen, Hans-Dieter A1 - Kaim, Wolfgang T1 - Elektronenreiche Olefine, 1. Zusammenhang zwischen Struktur, Spektroskopie und Reaktivität von Tetrakis(trimethylsilylmethyl)ethen T1 - Electron rich olefins, 1. The relationship between structure, spectroscopy, and reactivity of tetrakis(trimethylsilylmethyl)ethene T2 - Zeitschrift für Naturforschung, B N2 - Crystal and molecular structure analysis of the electron rich title compound exhibits an undistorted, yet sterically shielded tetra(primary alkyl)-substituted double bond system with alternating anti-periplanar CH2SiMe3 substituents. The diastereotopic methylene protons have been located and their position correlated to the 1HNMR data and to the ESR hyperfine coupling constants of the corresponding radical cation. In contrast to the highly inert all-carbon derivative, tetraneopentylethene, the more electron-rich and more flexible organosilicon title compound reacts with bromine. Close to orthogonal arrangement between the C-C(H2)-Si planes and the ethene plane ensures effective, fourfold σ/π-hyperconjugation. KW - Organosilicon Compounds KW - Stereochemistry KW - ESR Spectra KW - Olefins KW - NMR Spectra Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/72189 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-721898 SN - 1865-7117 SN - 0932-0776 VL - 43.1988 IS - 1 SP - 82 EP - 88 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -