An amino-type halogen-bonded organic framework for the selective adsorption of aliphatic acid vapors: insight into the competitive interactions of halogen bonds and hydrogen bonds

Abstract

As a new member of the organic framework family, halogen-bonded organic frameworks (XOFs) have the potential to gas capture and vaporchromic behavior yet remains to be explored. Herein, a novel...

Structure and Bonding of Halonium Compounds

“…The bonding in halonium ions (X = Cl, Br, and I) leads to a hypercoordinated system. These stable − noncovalent complexes with short interatomic distances, in which the central atom exceeds the octet rule, have attracted interest due to their applicability as synthetic reagents , and in the design of complex supramolecular synthons ,− and two-dimensional (2D) halogen-bonded organic framework (XOF) materials. − The nature of the interaction in halonium cations can be described in terms of orbital and electrostatic contributions, − with smaller contribution of dispersion forces . According to the Pimentel–Rundle model, − the halonium cation interacts simultaneously with two Lewis bases by accepting electrons through both lobes of its empty p-orbital.…”

Construction of Halogen-Bonded Organic Frameworks (XOFs) as Novel Efficient Iodinating Agents

“…To date, the halogen bond (XB), the directional, noncovalent interaction between the electron-poor region of halogens and Lewis bases, − has been applied in extensive different fields like material sciences, , crystal engineering, − anion recognition and transportation, − medicinal chemistry, , organic synthesis, and organocatalysis. , Among the XBs, the three-center–four-electron [N···X + ···N] halogen bonds, stabilized by simultaneous coordination of the halogen to two nitrogen electron donors, are widely applicable as novel tools for the construction of functional supramolecular aggregates. , Many [N···I + ···N] halonium complexes with ingenious structures have been constructed so far. − Recently, [N···I + ···N] halogen bonds have been employed to construct two-dimensional halogen-bonded organic frameworks (XOFs). , As a novel member of APMs, XOFs aroused our great interest in exploring their new structures and potential applications.…”

“…47−50 Recently, [N•••I + •••N] halogen bonds have been employed to construct two-dimensional halogen-bonded organic frameworks (XOFs). 51,52 As a novel member of APMs, XOFs aroused our great interest in exploring their new structures and potential applications.…”

Selective and Reversible Solvent Uptake in Tetra‐4‐(4‐pyridyl)phenylmethane‐based Supramolecular Organic Frameworks

“…[1][2][3][4] Usually, SOFs are obtained through the selfassembly of organic tectons via highly directional hydrogen bonds, [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] but examples of materials held together by van der Waals interactions, π•••π stacking, halogen bonds and, quite recently, chalcogen bonds have also been reported. [20][21][22][23][24][25][26] Compared to other classes of reticular materials based on coordinative or covalent bonds, SOFs lack robustness and tend to loose porosity when guests molecules are removed. [2] On the other side, they have the advantage of coupling flexibility and reversibility with relatively simple synthetic procedures under mild conditions.…”

“…In recent years, supramolecular organic frameworks (SOFs) have emerged as an important class of functional porous materials alongside coordination polymers (CPs), metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) for applications such as molecular sensing, gas storage and separation [1–4] . Usually, SOFs are obtained through the self‐assembly of organic tectons via highly directional hydrogen bonds, [5–19] but examples of materials held together by van der Waals interactions, π⋅⋅⋅π stacking, halogen bonds and, quite recently, chalcogen bonds have also been reported [20–26] . Compared to other classes of reticular materials based on coordinative or covalent bonds, SOFs lack robustness and tend to loose porosity when guests molecules are removed [2] .…”