Theoretical modeling of singlet fission

D Casanova - Chemical reviews, 2018 - ACS Publications
Singlet fission is a photophysical reaction in which a singlet excited electronic state splits
into two spin-triplet states. Singlet fission was discovered more than 50 years ago, but the …

Do diradicals behave like radicals?

T Stuyver, B Chen, T Zeng, P Geerlings… - Chemical …, 2019 - ACS Publications
This review sets out to understand the reactivity of diradicals and how that may differ from
monoradicals. In the first part of the review, we delineate the electronic structure of a …

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 …

Prediction of molecular properties and molecular spectroscopy with density functional theory: From fundamental theory to exchange-coupling

F Neese - Coordination Chemistry Reviews, 2009 - Elsevier
This review provides a detailed account of density functional theory (DFT) and its application
to the calculation of molecular properties of inorganic compounds. After introducing some …

Definition of corresponding orbitals and the diradical character in broken symmetry DFT calculations on spin coupled systems

F Neese - Journal of Physics and Chemistry of Solids, 2004 - Elsevier
The broken symmetry (BS) concept is an extremely useful tool for the prediction of exchange
coupling constants in molecules with interacting paramagnetic centers. An analysis of the …

Electronic structure of bis (imino) pyridine iron dichloride, monochloride, and neutral ligand complexes: a combined structural, spectroscopic, and computational study

SC Bart, K Chłopek, E Bill, MW Bouwkamp… - Journal of the …, 2006 - ACS Publications
The electronic structure of a family of bis (imino) pyridine iron dihalide, monohalide, and
neutral ligand compounds has been investigated by spectroscopic and computational …

Diradical character view of singlet fission

T Minami, M Nakano - The Journal of Physical Chemistry Letters, 2012 - ACS Publications
The feasibility conditions of singlet fission on the excitation energy differences are revealed
as functions of the multiple diradical characters yi [defined by the occupation numbers of the …

Universal theoretical approach to extract anisotropic spin hamiltonians

R Maurice, R Bastardis, C Graaf, N Suaud… - Journal of Chemical …, 2009 - ACS Publications
Monometallic Ni (II) and Co (II) complexes with large magnetic anisotropy are studied using
correlated wave function based ab initio calculations. Based on the effective Hamiltonian …

A spectroscopy oriented configuration interaction procedure

F Neese - The Journal of chemical physics, 2003 - pubs.aip.org
A multireference configuration interaction (MR-CI) based method (S pectroscopy OR iented
CI, SORCI) is proposed to calculate energy differences between several electronic states of …

Screened hybrid functional applied to 33 transition-metal perovskites LaO ( = Sc–Cu): Influence of the exchange mixing parameter on the structural …

J He, C Franchini - Physical Review B—Condensed Matter and Materials …, 2012 - APS
We assess the performance of the Heyd-Scuseria-Ernzerhof (HSE) screened hybrid density
functional scheme applied to the perovskite family La MO 3 (M= Sc–Cu) and discuss the role …