Effect of the Lead(II) Bond Angle on the Reactivity of Diaminoplumbylenes toward Ammonia: From Inertness to Immediate Ammonolysis

Guthardt R, Bruhn C, Färber C, Siemeling U (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Organometallics American Chemical Society

Book Volume: 39

Pages Range: 4174-4177

Journal Issue: 23

DOI: 10.1021/acs.organomet.0c00196

Abstract

The reactivity of the N-heterocyclic plumbylenes o-C6H4(NSiRMe2)(2)Pb (R = M; t-Bu), nap(NSiRMe2)(2)Pb (nap = naphthalene-1,8-diyl; R = Me, t-Bu), and [Fe{(eta(5)-C3H4)NSit-BuMe2}(2)Pb] as well as of the acyclic diaminoplumbylene [(Me3Si)(2)N](2)Pb toward ammonia depends critically on the N-Pb-N bond angle. The five-membered-ring congeners have the smallest angles (ca. 78 degrees) and are inert toward NH3. The acyclic and the ferrocene-based congeners exhibit the largest Pb-II bond angles (ca. 104 and 99 degrees, respectively) and undergo immediate ammonolysis. The naphthalene-based six-membered-ring congeners have intermediate bond angles (ca. 83 degrees) and show significantly slower ammonolysis, which allowed the isolation of the reactive intermediate [Pb(mu-NH2){nap(NSiMe3)(NHSiMe3)}](2) at low temperatures. The plumbylenes of this study which undergo ammonolysis also react readily with aniline.

Authors with CRIS profile

Christian Färber Lehrstuhl für Anorganische und Metallorganische Chemie

Involved external institutions

Universität Kassel DE Germany (DE)

How to cite

APA:

Guthardt, R., Bruhn, C., Färber, C., & Siemeling, U. (2020). Effect of the Lead(II) Bond Angle on the Reactivity of Diaminoplumbylenes toward Ammonia: From Inertness to Immediate Ammonolysis. Organometallics, 39(23), 4174-4177. https://dx.doi.org/10.1021/acs.organomet.0c00196

MLA:

Guthardt, Robin, et al. "Effect of the Lead(II) Bond Angle on the Reactivity of Diaminoplumbylenes toward Ammonia: From Inertness to Immediate Ammonolysis." Organometallics 39.23 (2020): 4174-4177.

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