Thermodynamic and Structural Trends in Hexavalent Actinyl Cations: Complexation of Dipicolinic Acid with NpO22+ and PuO22+ in Comparison with UO22+. - Xu, Chao; Tian, Guoxin; Teat, Simon J.; Liu, Guokui; Rao, Linfeng (Chemistry - A European Journal, 2013)