An unprecedented (3, 4)-connected self-penetrating metal–organic framework

In this work, we obtained a highly rare three-dimensional Zn(II) MOF, namely [Zn2(BTC)2(L)][(Me2NH2)2]·DMF (BTC3 − = 1,3,5-benzenetricarboxylate, L = N1,N4-bis(pyridin-3-ylmethyl)cyclohexane-1,4-dicarboxamide), and Me2NH2 = dimethylamine cation) by solvo(hydro)thermal method. This polymer was characterized by single-crystal X-ray diffraction, thermogravimetry and solid-state luminescence analysis. The outstanding structural feature of it is (3, 4)-connected net with unprecedented (6 · 82)(6 · 85)(62 · 10)(62 · 83 · 10) topology and self-penetrating motif.