Towards synergy between spin-crossover and metal-ligands bond break in molecular crystals: structural investigations of eight seven-cordinated Fe(II) macrocyclic complexes

Hongfeng Wang (1, 2) , Arnaud Grosjean (1) , Chiara Sinito (3, 1) , Abdellah Kaiba (1) , Chérif Baldé (1, 4) , Cédric Desplanches (1) , Jean-François Létard (1) , Philippe Guionneau (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 Department of Materials Science and Engineering [Knoxville]
3 LP2N - Laboratoire Photonique, Numérique et Nanosciences
4 Laboratoire de Chimie et Physique des Matériaux

Sixteen structures of eight analogical Fe(II) macrocyclic complexes have been investigated exhibiting distinguishable structural properties even though no spin-crossover is observed. Notwithstanding, due to a synergistic effect between ligand field strength and intermolecular interaction, two of these complexes present very rare evidence for metal–ligand bond break at low temperature.

Domaines: Matériaux

Hongfeng Wang, Arnaud Grosjean, Chiara Sinito, Abdellah Kaiba, Chérif Baldé, et al.. Towards synergy between spin-crossover and metal-ligands bond break in molecular crystals: structural investigations of eight seven-cordinated Fe(II) macrocyclic complexes. CrystEngComm, 2015, 17 (22), pp.4075-4079. ⟨10.1039/C5CE00557D⟩. ⟨hal-01160312⟩