Files

865212.pdf (2.89 MB)

Document type

Article

Version

Published version

Publication date

2024-08-21

Publication license

cc by (c) Raïch Panisello, Ot et al., 2024
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/228570

No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having $M^{II}(phosphane-k^2P)\}^{2+}\ ( M = Pd, Pt)$ Scaffolds

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1021/acs.inorgchem.4c02169

Abstract

A series of square-planar palladium and platinum compounds with cis-blocking phosphanes and terminal azobenzene ligands ${[M(dppp)-(azo)_{2}] (OTf)_{2} (azo = CN(C_{6}H_{4})-N = N-(C_{6}H_{4})CN (iso-cyano), CN(C_{6}H_{4})-N = N-(C_{6}H_{5}) (iso-Ph)) and [{M_{2}(tpbz)}(azo)_{4}](OTf)_{4}(azo = CN(C_{6}H_{4})-N = N-(C_{6}H_{5})}$ have been synthesized and fully characterised. Similarly to the uncoordinated ligands, the new coordination compounds have shown to be photochemically active with respect to their trans-to-cis isomerization process. Their cis-to-trans back spontaneous reaction have been studied as a function of solvent, temperature and pressure and the corresponding activation parameters determined in order to investigate the mechanism of these transformations. The results obtained are indicative of the operation of a rotational mechanism with no cooperativity between the azo ligands attached to the same metal. DFT calculations have been carried out in order to estimate the relative energies of the different photoisomers for the theoretical interpretation of the experimental data.

Subject

Lligands, Pal·ladi (Element químic), Dissolvents, Platí

Subject (English)

Ligands, Palladium, Solvents, Platinum

Citation

Collections

Articles publicats en revistes (Química Inorgànica i Orgànica)
Articles publicats en revistes (Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB))
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))
Articles publicats en revistes (Institut de Química Teòrica i Computacional (IQTCUB))

Citation

RAÏCH PANISELLO, Ot, et al. No Switching Cooperativity between Coordinated Azo Ligands on Complexes Having $M^{II}(phosphane-k^2P)\}^{2+}\ ( M = Pd, Pt)$ Scaffolds. Inorganic Chemistry. 2024. Vol. 63, num. 16251-16263. ISSN 0020-1669. [consulted: 6 of June of 2026]. Available at: https://hdl.handle.net/2445/228570

Export metadata

JSON - METS

Share record