Cambridge Open Engage home
What is Cambridge Open Engage?
How to Submit
Browse
About
News [opens in a new tab]

A Lead(II) Substituted Triplet Carbene

26 July 2024, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Reaction of the pincer-type ligand L3 supported complex [L3PbBr][BArF24] (1) with Li[(C(=N2)TMS)] furnishes [L3Pb(C(=N2)TMS)][BArF24] (2). Diazo-compound 2 eliminates dinitrogen upon irradiation affording formal plumba-alkyne 3, which persists in cold fluoroarene solutions. Variable temperature UV/Vis and NMR spectroscopies in combination with quantum-chemical calculations identify 3 as a metal-substituted triplet carbene. In-crystallo irradiation of [L3Pb(C(=N2)TMS)(tol)][BArF24] (2∙tol) provides a snapshot of intermolecular C–H bond insertion with toluene (4).

Keywords

Triplet Carbene
Metalla-Alkyne
Main Group
Multiple Bonds
CH Activation

Supplementary materials

Title
Description
Actions
Title
ESI
Description
ESI
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.

Version History

Jul 26, 2024 Version 1

Metrics

721
563
0
Views
Downloads
Citations

License

CC logo
CC
BY logo
BY
NC logo
NC
ND logo
ND
The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2024-64knm
D O I: 10.26434/chemrxiv-2024-64knm [opens in a new tab]

Funding

European Research Council
948185
Deutsche Forschungsgemeinschaft
INST 256/506-1
Deutsche Forschungsgemeinschaft
INST 256/582-1

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

Share