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Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Crystal structures of 2-(benzene-carbo-thio-yloxy)ethyl benzene-carbo-thio-ate and 2-(benzene-carbo-thio-yloxy)ethyl
Syuto Tanaka1, Hyuma Masu2, Yuji Sasanuma1
1Department of Applied Chemistry and Biotechnology, Graduate School and Faculty of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
Abstract:
The title compounds, C16H14O2S2 and C16H14O3S, which are monomeric models (models D and E) for a polythio-noester and a poly(ester-co-thio-noester), respectively, crystallize in the space group P21/c and are isostructural with each other. The mol-ecule in each crystal is located on an inversion centre and has an all-trans structure. The asymmetric unit comprises one half-mol-ecule. In the crystal, there are inter-molecular C⋯S contacts [3.391 (3) and 3.308 (3) Å for models D and E, respectively] and C-H⋯π inter-actions, which form a layer structure parallel to the bc plane. The carbonyl and thio-carbonyl groups of the model E compound are each disordered over two equivalent sites about the inversion centre with equal occupancies.
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