Fig. 1

Structure analysis of compounds 1–3. Compounds 1, 2, and 3 are built on 12-, 8-, and 4-connected Zr6 clusters, linked by tetratopic organic ligands bptc, abtc, and tptc-(Me)2, forming ftw, scu, and lvt type structures, respectively
Structure analysis of compounds 1–3. Compounds 1, 2, and 3 are built on 12-, 8-, and 4-connected Zr6 clusters, linked by tetratopic organic ligands bptc, abtc, and tptc-(Me)2, forming ftw, scu, and lvt type structures, respectively