Extended Molecular Networks

Three-positive lanthanide ions are not so promising if the objective is building bulk molecular magnets because of the internal character of 4f orbitals, which 

Lanthanides and Actinides in Molecular Magnetism, First Edition. 

In organizing the content of this chapter we have made a distinction between isotropic, mainly Gd3+, and anisotropic lanthanide-based molecular networks. 

In the first case, ID materials exhibit a peculiar magnetic behaviour only in a restricted class of compounds comprising nitronyl-nitroxide radicals. Much richer is the literature on anisotropic 4f ions showing slow relaxation of the magnetization due to SCM behaviour. 

---

T. Basu, H.A. Sparkes, R. Mondal, Construction of extended molecular networks with heterosynthons in cocrystals of pyrazole and acids, Cryst. Growth Des. 9 (2009) 5164-5175. 

---