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Halogenbindungen In ihrer Zuschrift auf S. 9110 präsentieren M. Erdélyi et al. Iodonium‐Kationen, die durch Dreizentren‐Vierelektronen‐Halogenbindungen des Typs [N−I−N]+ mit oligomeren Pyridyl‐Liganden stabilisiert werden.
The first halonium‐ion‐based helices were designed and synthesized using oligo‐aryl/pyridylene‐ethynylene backbones that fold around reactive iodonium ions. Halogen bonding interactions stabilize the iodonium ions within the helices. Remarkably, the distance between two iodonium ions within a helix is shorter than the sum of their van der Waals radii. The helical conformations were characterized by...
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