Unprecedented Topological Complexity in a Metal–Organic Framework Constructed from Simple Building Units

• DOI: 10.1021/jacs.5b12484
• Publication Date: 2016-01-21T08:31:09Z
• Authors: A. Ken Inge; Milan Köppen; Jie Su; Mark Feyand; Hongyi Xu; Xiaodong Zou; Michael O’Keeffe; Norbert Stock
• Keywords: 13. Climate action; 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

A bismuth-based metal–organic framework (MOF), [Bi(BTC)(H2O)]·2H2O·MeOH denoted CAU-17, was synthesized and found to have an exceptionally complicated structure with helical Bi–O rods cross-linked by 1,3,5-benzenetricarboxylate (BTC3–) ligands. Five crystallographically independent 1D channels including two hexagonal channels, rectangular one triangular channel accessible diameters of 9.6, 3.6, 3.4 Å, respectively. The is further twinning. Rod-incorporated MOF structures typically underlying nets only unique node three or four edges. In contrast, topological analysis CAU-17 revealed unprecedented complexity for a 54 nodes 135 originates from the rod packing themselves, which are related aperiodic helices.