Magnetic interactions in molecules and highly correlated materials: physical content, analytical derivation, and rigorous extraction of magnetic Hamiltonians

JP Malrieu, R Caballol, CJ Calzado, C De Graaf… - Chemical …, 2014 - ACS Publications
Magnetism is a phenomenon that has always captured the imagination of humans. Its
discovery in the western world is attributed to the ancient Greek civilization. More than 2500 …

High-Spin (S = 1) Blatter-Based Diradical with Robust Stability and Electrical Conductivity

S Zhang, M Pink, T Junghoefer, W Zhao… - Journal of the …, 2022 - ACS Publications
Triplet ground-state organic molecules are of interest with respect to several emerging
technologies but usually show limited stability, especially as thin films. We report an organic …

High-Spin S = 3/2 Ground-State Aminyl Triradicals: Toward High-Spin Oligo-Aza Nanographenes

H Zhang, M Pink, Y Wang, S Rajca… - Journal of the American …, 2022 - ACS Publications
We report high-spin aminyl triradicals with near-planar triphenylene backbones. Near-
planarity of the fused aminyl radicals and the 2, 6, 10-triphenylene ferromagnetic coupling …

A kinetically stabilized nitrogen‐Doped triangulene cation: stable and NIR fluorescent diradical cation with triplet ground state

S Arikawa, A Shimizu, D Shiomi, K Sato… - Angewandte Chemie …, 2023 - Wiley Online Library
A kinetically‐stabilized nitrogen‐doped triangulene cation derivative has been synthesized
and isolated as the stable diradical with a triplet ground state that exhibits near‐infrared …

High-spin organic molecules

NM Gallagher, A Olankitwanit… - The Journal of Organic …, 2015 - ACS Publications
Organic molecules with high-spin ground states, besides being fundamentally interesting,
possess numerous potential applications in diverse fields such organic magnetism, MRI …

Thermally and magnetically robust triplet ground state diradical

N Gallagher, H Zhang, T Junghoefer… - Journal of the …, 2019 - ACS Publications
High spin (S= 1) organic diradicals may offer enhanced properties with respect to several
emerging technologies, but typically exhibit low singlet triplet energy gaps and possess …

Exchange rules for diradical π-conjugated hydrocarbons

R Ortiz, RA Boto, N García-Martínez… - Nano Letters, 2019 - ACS Publications
A variety of planar π-conjugated hydrocarbons such as heptauthrene, Clar's goblet and,
recently synthesized, triangulene have two electrons occupying two degenerate molecular …

Synthesis and Thin Films of Thermally Robust Quartet (S = 3/2) Ground State Triradical

C Shu, M Pink, T Junghoefer, E Nadler… - Journal of the …, 2021 - ACS Publications
High-spin (S= 3/2) organic triradicals may offer enhanced properties with respect to several
emerging technologies, but those synthesized to date typically exhibit small doublet quartet …

Chiral π-Conjugated Double Helical Aminyl Diradical with the Triplet Ground State

H Guo, JB Lovell, C Shu, M Pink, M Morton… - Journal of the …, 2024 - ACS Publications
We report a neutral high-spin diradical of chiral C 2-symmetric bis [5] diazahelicene with Δ E
ST≈ 0.4 kcal mol–1, as determined by EPR spectroscopy/SQUID magnetometry. The …

Triindenotriphenylenes: Spin‐Frustrated Triskelion Triradicals with Excellent Ambient Stability

A Borissov, PJ Chmielewski, AC Valdivia… - Angewandte Chemie …, 2024 - Wiley Online Library
A triskelion‐shaped triradical triindeno [1, 2‐a: 1′, 2′‐g: 1′′, 2′′‐m] triphenylen‐7‐yl
(1) and its internally fused derivative (2) obtained by oxidative cyclization were prepared in a …