H(N3)dap (Hdap = 2,6-diaminopurine) Recognition by Cu<sub>2</sub>(EGTA): Structure, Physical Properties and DFT-Calculations of [Cu<sub>4</sub>(μ-EGTA)<sub>2</sub>(μ-H(N3)dap)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]·7H<sub>2</sub>O | Publicación