TY - JOUR
T1 - Photoinduced Isomerization of [N2]2- in a Bimetallic Lutetium Complex
AU - Yuan, Mingbin
AU - McNeece, Andrew J.
AU - Dolgopolova, Ekaterina A.
AU - Wolfsberg, Laura
AU - Bowes, Eric G.
AU - Batista, Enrique R.
AU - Yang, Ping
AU - Filatov, Alexander S.
AU - Davis, Benjamin L.
PY - 2024/11/13
Y1 - 2024/11/13
N2 - The first lanthanide dinitrogen photoswitch [(C5Me4H)2(THF)Lu]2(μ-η2:η2-N2), 1, is reported. 1 is a unique example of controlled isomerization between side-on and end-on coordination modes of [N2]2- in a bimetallic lutetium dinitrogen complex that results in photochromism. Near-infrared light (NIR) was used to promote this effect, as evidenced by single X-ray diffraction (XRD) connectivity and Raman data, generating the [N2]2- end-on bound isomer, [(C5Me4H)2(THF)Lu]2(μ-η1:η1-N2), 2. Although different ligands and coordinating solvents were studied to replicate and control the optical properties in 1/2, only the original configuration with C5Me4H ligands and THF as the coordinating solvent worked. Supported by the first-principles calculations, the electronic structures along with the mechanistic details of the side-on to end-on isomerization were unraveled. Preliminary reactivity studies show that 2 formed with NIR light reacts with anthracene, generating dihydroanthracene and anthracene dimers, indicating new redox reaction pathways.
AB - The first lanthanide dinitrogen photoswitch [(C5Me4H)2(THF)Lu]2(μ-η2:η2-N2), 1, is reported. 1 is a unique example of controlled isomerization between side-on and end-on coordination modes of [N2]2- in a bimetallic lutetium dinitrogen complex that results in photochromism. Near-infrared light (NIR) was used to promote this effect, as evidenced by single X-ray diffraction (XRD) connectivity and Raman data, generating the [N2]2- end-on bound isomer, [(C5Me4H)2(THF)Lu]2(μ-η1:η1-N2), 2. Although different ligands and coordinating solvents were studied to replicate and control the optical properties in 1/2, only the original configuration with C5Me4H ligands and THF as the coordinating solvent worked. Supported by the first-principles calculations, the electronic structures along with the mechanistic details of the side-on to end-on isomerization were unraveled. Preliminary reactivity studies show that 2 formed with NIR light reacts with anthracene, generating dihydroanthracene and anthracene dimers, indicating new redox reaction pathways.
UR - http://www.scopus.com/inward/record.url?scp=85208393611&partnerID=8YFLogxK
U2 - 10.1021/jacs.4c10950
DO - 10.1021/jacs.4c10950
M3 - Article
SN - 0002-7863
VL - 146
SP - 31074
EP - 31084
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 45
ER -