December 8, 2025Open Access

Molecular Complexes of Iodine Monobromide with Bifunctional N‐containing Donors

EDElena I. DavydovaSt Petersburg University DSDar’ya V. SpiridonovaSt Petersburg University IKIlya V. KornyakovRussian Academy of Sciences

Key Points

Evident stabilization observed in iodine monobromide complexes formed with bidentate nitrogen donors.
Thermodynamic properties demonstrate the relationship between Lewis basicity of donors and iodine compounds.
Analysis of complexation showed that Lewis acidity varies with different iodine compounds and donors.
Findings suggest that these molecular complexes can serve as a reliable source for iodine monobromide.

Abstract

Results of the joint experimental and computational studies of structural features, bonding, and thermodynamic properties of molecular complexes of iodine monobromide with bidentate nonchelating N‐containing donors, pyrazine (pyz), 4,4′‐bipyridine (bipy), and 1,2‐bis(4‐pyridyl)ethane (bpa) are reported. Comparison of structural, energetic, and electronic properties reveals that the Lewis basicity with respect to IBr increases in the order pyz < bipy < bpa, while Lewis acidity with respect to pyz increases in the order I 2 < IBr < ICl. Stabilization of IBr by complexation with bidentate nonchelating Lewis bases allows to recommend (IBr) 2 ·L complexes as a convenient source of IBr.

Perguntar à IA

Bookmark

View Full Paper