A rare terminal dinitrogen complex of chromium

Michael T. Mock; Shentan Chen; Roger Rousseau; Molly O’Hagan; William G. Dougherty; W. Scott Kassel; Daniel L. DuBois; R. Morris Bullock

doi:10.1039/c1cc15430c

January 1, 2011Chemical Communications

A rare terminal dinitrogen complex of chromium

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Key Points

Synthesize rare terminal chromium-dinitrogen complexes and determine the structural and electronic factors that govern their stability.
Synthesized cis- and trans-Cr-N2 complexes supported by the diphosphine ligand P(Ph)2N(Bn)2 containing pendant amines in the second coordination sphere.
Conducted electronic structure calculations to evaluate the metal-ligand bonding mechanism and isomerization preferences.
Pendant amines situated within the second coordination sphere govern the thermodynamically preferred geometric isomer between cis and trans forms.
Calculations revealed negligible chromium-to-nitrogen back-bonding, demonstrating that electronic polarization of the N2 ligand predominantly stabilizes Cr-N2 coordination.

Implication

Chemical synthesis and computational analysis demonstrate terminal dinitrogen binding to chromium, indicating that ligand polarization rather than back-bonding stabilizes the complex.

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Cite This Study

Mock et al. (2011) studied this question.

synapsesocial.com/papers/6ab2495e9d082a4c0d0977df https://doi.org/10.1039/c1cc15430c

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A rare terminal dinitrogen complex of chromium

Key Points

Implication

Discussion

Cite This Study

A rare terminal dinitrogen complex of chromium

Key Points

Implication

Discussion

Cite This Study

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