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Requirements for Lewis Acid-Mediated Capture and N-N Bond Cleavage of Hydrazine at Iron.


ABSTRACT: An iron complex bearing a pyridine(dicarbene) pincer was designed to probe the requirements of Lewis acid-enabled N2H4 capture and subsequent N-N bond cleavage. Appended boron Lewis acids were installed by two methods to circumvent the incompatibilities associated with Lewis acid/base quenching of free carbenes and boranes. N2H4 capture by borane Lewis acids is dependent on both the Lewis acidity and the steric profile about boron. A substitutionally inert primary coordination sphere at iron prevents an Fe-N2H4 interaction as well as N-N bond homolysis upon reduction.

SUBMITTER: Kiernicki JJ 

PROVIDER: S-EPMC6467759 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Requirements for Lewis Acid-Mediated Capture and N-N Bond Cleavage of Hydrazine at Iron.

Kiernicki John J JJ   Zeller Matthias M   Szymczak Nathaniel K NK  

Inorganic chemistry 20190110 2


An iron complex bearing a pyridine(dicarbene) pincer was designed to probe the requirements of Lewis acid-enabled N<sub>2</sub>H<sub>4</sub> capture and subsequent N-N bond cleavage. Appended boron Lewis acids were installed by two methods to circumvent the incompatibilities associated with Lewis acid/base quenching of free carbenes and boranes. N<sub>2</sub>H<sub>4</sub> capture by borane Lewis acids is dependent on both the Lewis acidity and the steric profile about boron. A substitutionally i  ...[more]

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