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Articles by Eric Bosch
Mixed cocrystal approach influences the yield for a [2+2] cycloaddition reaction within a halogen‐bonded organic solid
The synthesis, crystal structure, and [2+2] cycloaddition photoreactivity of a halogen-bonded mixed cocrystal is reported. The cocrystal solid solution contains two isosteric donors, namely, 1,4-diiodoperchlorobenzene (C6I2Cl4) and iodoperchlorobenzene (C6ICl5), along with trans-1,2-bis(pyridin-4-yl)ethylene (BPE, C12H10N2) which behaves as a ditopic reactant molecule.
Formation of Planar π-Conjugated Sheets in Cocrystals of Bis(iodoethynyl)pyridines and Bipyrimidylalkynes: Cooperative C–H···N Hydrogen Bonds and sp-C–I···N Halogen Bonds
1. Introduction Click to copy section linkSection link copied! The deliberate cocrystallization, or self-assembly, of organic molecules is now recognized as a viable route to the formation of functional materials in a wide variety of fields. (1) The cocrystallization, or self-assembly, process is guided by cooperative noncovalent interactions such as π–π stacking and charge-transfer interactions, hydrogen bonding, and, more recently, halogen bonding between the components.
Role of secondary interactions in a series of 2:1 halogen‐bonded cocrystals formed between 4‐(dimethylamino)pyridine and ditopic halogen‐bond donors
The structures of a series of 2:1 cocrystals formed between 4-(dimethylamino)pyridine and each of 1,2,4,5-tetrachloro-3,6-diiodobenzene, 2C7H10N2·C6Cl4I2, 1,2,4,5-tetrabromo-3,6-diiodobenzene, 2C7H10N2·C6Br4I2, 1-bromo-4-iodo-2,3,5,6-tetrafluorobenzene, 2C7H10N2·C6BrF4I, and 1,2-dibromo-4,5-difluoro-3,6-diiodobenzene, 2C7H10N2·C6Br2F2I2, are reported.
Preference in the Type of Halogen Bonding Interactions within Co-Crystals of Anthraquinone with a Pair of Isosteric Perhalobenzenes
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Achieving a series of solid-state [2 + 2] cycloaddition reactions involving 1,2-bis(2-pyridyl)ethylene within halogen-bonded co-crystals
Achieving a series of solid-state [2 + 2] cycloaddition reactions involving 1,2-bis(2-pyridyl)ethylene within halogen-bonded co-crystals The solid-state [2 + 2] cycloaddition reaction of trans-1,2-bis(2-pyridyl)ethylene through both co-crystallization and mechanical grinding is reported. The photoreaction is achieved by using iodoperchlorobenzene as a molecular template. The co-crystal is sustained primarily by I···N halogen bonds and homogeneous face-to-face π-π stacking interactions.
Halogen-Bonded Supramolecular Parallelograms: From Self-Complementary Iodoalkyne Halogen-Bonded Dimers to 1:1 and 2:2 Iodoalkyne Halogen-Bonded Cocrystals
Synthetic macrocycles, including supramolecular macrocycles, have a wide variety of practical and potential applications. The broad field of host–guest chemistry (1) encompasses many examples, including the precise preparation of porous materials for molecular separation (2) and molecular identification via vapochromism. (3) Applications in drug discovery have burgeoned over the past two decades, including specifically designed synthetic macrocycles.
Molecular Turnstiles Featuring Bicyclic Rotators: Solution and Solid‐State Investigation of Steric and Electronic Concerns
Abstract A molecular rotor is created when a 2,1,3-benzothiadiazole rotator is incorporated into a rigid arylene ethynylene framework supported by pyridine coordination to a metal (Ag+ or PdCl2) guest. Comparisons to a similarly sized naphthyl rotator via 1H NMR spectroscopy provide insights into the movement of these bicyclic rotators relative to the rigid stator framework.
Rapid Access to Encapsulated Molecular Rotors via Coordination‐Driven Macrocycle Formation
Abstract Macrocycle formation that relies upon trans metal coordination of appropriately placed pyridine ligands within an arylene ethynylene construct provides rapid and reliable access to molecular rotors encapsulated within the macrocyclic framework. Showing no significant close contacts to the central rotors, X-ray crystallography of Ag(I)-coordinated macrocycles provides plausibility for free rotation or wobbling of rotors within the central cavity.
Preference of halogen bonds over hydrogen bonds within a discrete three-component co-crystal that undergo a [2 + 2] cycloaddition reaction
Preference of halogen bonds over hydrogen bonds within a discrete three-component co-crystal that undergo a [2 + 2] cycloaddition reaction Conrad Powell, Eric Bosch, Herman R. Krueger and Ryan Groeneman Abstract The formation of a series of isostructural three-component co-crystals between 1,2,4,5-tetrachloro-3-iodobenzene (C6HICl4) and each of three isosteric bipyridines is reported.
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