Crystal and Molecular Structures of Dimorpholinotetrasulphane

Article abstract of DOI:10.1039/DT9800000632

The tetrasulphane S4(NC4H8O)2 crystallizes in the tetragonal space group I4₁/a (no. 88) with a=b=12.812(1), c=16.733(2) Angstroem, and Z=8.The structure has been determined by X-ray diffraction from Mo-K_α diffractometer data and refined by full-matrix least-squares to R 0.045 for 948 observed reflections.The molecules lie across crystallographic two-fold axes.The N-S-S-S-S-N chains occur in the trans-trans form, with N-S 1.668(3), S-S (terminal) 2.061(2), S-S (central) 2.078(3) Angstroem, N-S-S 109.1(2), S-S-S 105.8(1) deg, NSS-SSS 90.3. and SSS-SSS 79.9 deg.The morpholine groups occur in the chair form, with N-S equatorial.The S-S bonds alternate only slightly in length along the chain, like the Se-Se bonds in the isomorphous tetraselane analogue.

Full text of DOI:10.1039/DT9800000632

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