A Guideline to the design of molecular-based materials with long-lived photomagnetic lifetimes
type: Dataset
description: Materials presenting a stable and reversible switch of physical properties in the solid state are of major interest either for fundamental interests or potential industrial applications. In this context, the design of metal complexes showing a light-induced crossover from one spin state to another, leading to a major change of magnetic and optical properties, is probably one of the most appealing challenges. The so-denoted spin-crossover materials undergo, in some cases, a reversible photoswitch between two magnetic states, but, unfortunately, lifetimes of the photomagnetic states for compounds known so far are long enough only at low temperatures; this prohibits any applications. We have measured and collected the temperatures above which the photomagnetic effect disappears for more than sixty spin-crossover compounds. On the basis of this large data base, a correlation between the nature of the coordination sphere of the metal and the photomagnetic lifetime can be drawn. Such correlation allows us to propose here a general guideline for the rational design of materials with long-lived photomagnetic lifetimes. This result clearly opens the way towards room-temperature photonic materials, based on the spin-crossover phenomenon, which will be of great interest for future communication devices.
landing page: 0947-6539
keyword: chimmatechemical-sciencesmaterial-chemistry
keyword: coordination-modes
keyword: infoeu-reposemanticsarticle
keyword: journal-articles
keyword: photochromism
keyword: photomagnetism
keyword: photophysics
keyword: spin-crossover
issued: 2026-05-05T20:14:48.428774
modified: 2026-05-05T20:14:48.428778
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

A Guideline to the design of molecular-based materials with long-lived photomagnetic lifetimes
type: Distribution
format: HTML
access URL: https://hal.science/hal-00096683
issued: 2026-05-05T20:14:48.459572
modified: 2026-05-05T20:14:48.418029