Abstract
Abstract6‐Iodo‐3‐(triflamidomethyl)‐4‐triflyl‐1,4,2,7‐oxazadisilepane 1 and the product of its cyclization, 2,2,4,4‐tetramethyl‐6,8‐bis (triflyl)‐3‐oxa‐6,8‐diaza‐2,4‐disilabicyclo[3.2.2]nonane 2, have been studied by gas‐phase electron diffraction and DFT calculations. The conformational equilibrium in the gas phase was shown to include three and two conformers for 1 and 2, respectively, in contrast to only one conformer determined by single crystal X‐ray diffraction. The structural analysis of the conformers was performed and the pathways of the conformational transitions were analyzed.
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