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| Open AccessEvolution of Br⋯Br contacts in enantioselective molecular recognition during chiral 2D crystallization
Halogen-mediated interactions control molecular recognition in many chemical and biological systems. Here, the authors demonstrate two types of Br⋯Br contacts and their importance in chiral on-surface crystallization.
- Zhen-Yu Yi
- , Xue-Qing Yang
- & Li-Jun Wan
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Article
| Open Accessπ covalency in the halogen bond
Current models of halogen bonding describe the σ-symmetric component of this interaction but do not contemplate the possibility of π-covalency. Here the authors provide experimental and computational evidence of π-covalency in halogen bonds involving radical cation halogen bond donors.
- Cameron W. Kellett
- , Pierre Kennepohl
- & Curtis P. Berlinguette
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Article
| Open AccessThe halogen bond with isocyano carbon reduces isocyanide odor
Carbon atoms of various species typically function as acceptors of noncovalent interactions when they are part of a π-system. Here, the authors report their discovery of a noncovalent halogen bond involving the isocyano carbon lone pair, which results in adducts with strongly reduced isocyanide odor.
- Alexander S. Mikherdov
- , Alexander S. Novikov
- & Vadim Yu. Kukushkin
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Article
| Open AccessCombining high-resolution scanning tunnelling microscopy and first-principles simulations to identify halogen bonding
Scanning tunnelling microscopy (STM) is commonly used to study 2D molecular self-assembly but is not always enough to fully solve a supramolecular structure. Here, the authors combine a high-resolution version of STM with first-principles simulations to precisely identify halogen bonding in polycyclic aromatic molecules.
- James Lawrence
- , Gabriele C. Sosso
- & Giovanni Costantini
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Article
| Open AccessHierarchical self-assembly of organic heterostructure nanowires
Organic heterostructures attract attention in material chemistry but the precise bottom-up synthesis is still challenging. Herein the authors present a hierarchical self-assembly approach to synthesize one-dimensional organic heterostructures by regulating the noncovalent interactions.
- Ming-Peng Zhuo
- , Jun-Jie Wu
- & Liang-Sheng Liao
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Article
| Open AccessHalogen bonding as a supramolecular dynamics catalyst
The halogen bond is well known for its ability to assemble supramolecules. Here, using NMR experiments, the authors reveal the role of these bonds in dynamic processes, finding that the halogen bond directly catalyzes dynamical rotation in solid cocrystals by reducing the associated energy barrier.
- Patrick M. J. Szell
- , Scott Zablotny
- & David L. Bryce
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Article
| Open AccessHalogen-bonded cocrystallization with phosphorus, arsenic and antimony acceptors
Halogen bonding can be exploited for the design of functional supramolecular materials, but heavier elements that are known to accept a halogen bond remain limited. Here, the authors demonstrate the formation of two-component cocrystals based on halogen bonds with phosphorus, arsenic and antimony.
- Katarina Lisac
- , Filip Topić
- & Dominik Cinčić