On the role of DMSO-O(lone pair)⋯π(arene), DMSO-S(lone pair)⋯π(arene) and SO⋯π(arene) interactions in the crystal structures of dimethyl sulphoxide (DMSO) solvates

Abstract

DMSO-O(lone pair)⋯π(arene), DMSO-S(lone pair)⋯π(arene) and SO⋯π(arene) interactions are found in DMSO solvates.

Homoleptic Ti[ONO]2 type complexes of amino‐acid‐tethered phenolato Schiff‐base ligands: Synthesis, characterization, time‐resolved fluorescence spectroscopy, and cytotoxicity against ovarian and colon cancer cells

“…While not common, carbonyl-C=O … π(phenyl) and related O(lonepair) … π(arene) interactions are known to be important in assembling molecules in crystals. [84][85][86] In the present case and as illustrated in Figure 3, centrosymmetric, supramolecular dimers formed, which is the commonly adopted motif stabilized by such interactions. In the crystal of 5, layers stacked without directional interactions between them (see ESI Figure S17b…”

Self-Assembly of M 30 L 60 Icosidodecahedron

“…The coordination of DMSO to aromatic rings (lone-pair-p interactions) is a known phenomenon. 41 Most of the atoms other than oxygen were severely disordered in this case. The sliced view of the spherical complex (Figure 5E) visually affirms the statements mentioned above and that our model building is sufficient.…”

On the influence of small chemical changes upon the supramolecular association in substituted 2-(phenoxy)-1,4-naphthoquinones

“…Each crystal also features C=O … π interactions. This type of interaction is known to be significant in stabilising the molecular packing of both heavy-element and organic molecules and have been shown to sustain recognisable aggregation patterns [64][65][66][67][68]. It is noted that while attractive, such C=O … π interactions contribute relative small energies of stabilisation to crystals in which they are formed, i.e.…”

“…It is noted that while attractive, such C=O … π interactions contribute relative small energies of stabilisation to crystals in which they are formed, i.e. probably < 10 kJ mol -1 , based on DFT calculations [64][65][66][67][68][69]. The persistence of these interactions in the molecular packing of 1-5 is of interest.…”