Hydrogen-bonded dimers in N-(2-nitrophenylthio)saccharin

Area of Science:

• Crystallography
• Organic Chemistry
• Supramolecular Chemistry

Background:

• Understanding the intermolecular interactions in organic compounds is crucial for predicting and controlling their solid-state properties.
• Saccharin derivatives and nitrophenylthio compounds are classes of molecules with diverse applications, making their structural characterization valuable.

Purpose of the Study:

• To elucidate the crystal structure and intermolecular interactions of 2-(2-nitrophenylthio)-1,2-benzothiazol-3(2H)-one 1,1-dioxide.
• To analyze the role of hydrogen bonding and pi-pi stacking in the self-assembly of this compound.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional molecular structure.
• Analysis of bond lengths, angles, and non-covalent interactions (hydrogen bonds, pi-pi stacking) was performed.

Main Results:

• The crystal structure reveals an almost orthogonal arrangement between the saccharin and nitrophenylthiolate moieties.
• Molecules self-assemble into cyclic centrosymmetric dimers through C-H...O=S hydrogen bonds.
• Aromatic pi-pi stacking interactions between nitrated aryl rings further stabilize the crystal lattice.

Conclusions:

• The specific hydrogen bonding and pi-pi stacking interactions dictate the observed crystal packing in 2-(2-nitrophenylthio)-1,2-benzothiazol-3(2H)-one 1,1-dioxide.
• This structural insight contributes to the understanding of crystal engineering principles for organic molecules.