Nicolas Niessen
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View article: Cover Feature: Increasing the Lewis Acidity of Pyramidal Boranes: Cationic 9‐Bora‐1‐Azatriptycenes as Strong Boron Lewis Superacids (ChemistryEurope 5/2025)
Cover Feature: Increasing the Lewis Acidity of Pyramidal Boranes: Cationic 9‐Bora‐1‐Azatriptycenes as Strong Boron Lewis Superacids (ChemistryEurope 5/2025) Open
View article: Increasing the Lewis Acidity of Pyramidal Boranes: Cationic 9‐Bora‐1‐Azatriptycenes as Strong Boron Lewis Superacids
Increasing the Lewis Acidity of Pyramidal Boranes: Cationic 9‐Bora‐1‐Azatriptycenes as Strong Boron Lewis Superacids Open
Bora‐azatriptycenes have been synthesized and used as geminal pyridine–boranes pairs, which exhibit unusual binding modes with weakly coordinating anions, to unique aza‐triptycene/bora‐triptycene Lewis adducts, and to bis‐triptycenes dimer…
View article: CCDC 2245311: Experimental Crystal Structure Determination
CCDC 2245311: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2235821: Experimental Crystal Structure Determination
CCDC 2235821: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Front Cover: Association of Pyramidal Boron Lewis Superacids with Pyridines: Bending 2,4,6‐Collidine with the 10‐Sulfonium‐9‐boratriptycene (Z. Anorg. Allg. Chem. 9‐10/2023)
Front Cover: Association of Pyramidal Boron Lewis Superacids with Pyridines: Bending 2,4,6‐Collidine with the 10‐Sulfonium‐9‐boratriptycene (Z. Anorg. Allg. Chem. 9‐10/2023) Open
This cover picture shows a Lewis adduct between a pyramidal boron Lewis superacid and a bulky pyridine. Due to the high Lewis acidity and pyramidalization at the boron atom, the boron-nitrogen bond is shorter than that in other Lewis adduc…
View article: CCDC 2121160: Experimental Crystal Structure Determination
CCDC 2121160: Experimental Crystal Structure Determination Open