Synthesis of Ideal AM‐6 and Elucidation of V⁴⁺‐to‐O Charge Transfer in Vanadate Quantum Wires

Vanadosilicate zeolite AM-6, which contains a 3D array of vanadate (VIVO32−) quantum wires (see picture), was prepared as high-quality crystals (free from VV, titanosilicate seeds, and pore-blocking organic template cations) from inexpensive V2O5. The linear dependence of λmax and band-gap energy Eg on the partial charge on the framework O atoms reveal that the UV band of AM-6 is due to VIV-to-O metal-to-ligand charge transfer.