Bonding in open-shell graphene fragments
R. A. Boto
CICECO, Complexo de Laboratórios Tecnológicos, Campus Universitario de Santiago 3810-193, Aveiro, Portugal
Vendredi 23 Juin 2017, 11h00
bibliothèque LCT, tour 12 - 13, 4ème étage
Open-shell graphene fragments are non-Kekulé benzenoid molecules which can be considered as triangular graphene subunits [1, 2]. Coupling several of them it is possible to design high-spin molecular systems with magnetic and conductance properties similar to that of typical inorganic materials. These materials can take advantage of the possibilites offered by the molecular world: increasing control of molecular magnetism by chemical design, structural and electronic versatility, low density, flexibility among other properties.
This work digs into the possibility of designing molecular ferromagnets by columnar stacking of open-shell graphene fragments [3]. Phenalenyl and triangulene π-dimers are considered as representative examples. We will review the relevance of these two molecules for designing new materials as well as their structure and bonding.
![[Picture]](Boto-2-image.jpg)
Figure 1. A graphene sheet and open-shell graphene fragments phenalenyl and triangulene.
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References :
[1] M. Melle-Franco. When 1+1 is odd.
[2] Y. Morita, S. Suzuki, K. Sato, and T. Takui, Nature Chem. 2011, 3, 197.
[3] Z. Mou, and M. Kertesz, Angew. Chem. Int. Ed. 2017.