Ultralong Room-Temperature Qubit Lifetimes of Covalent Organic Frameworks.

Molecular electron spin qubits offer atomic-level tunability and room-temperature quantum coherence. Their integration into engineered solid-state matrices can enhance performance toward ambient quantum information technologies. Herein, we demonstrate covalent organic frameworks (COFs) as programmable matrices for stable organic radical qubits, allowing strategic optimization of spin-phonon and spin-spin interactions.

Phononic modulation of spin-lattice relaxation in molecular qubit frameworks.

The solid-state integration of molecular electron spin qubits could promote the advancement of molecular quantum information science. With highly ordered structures and rational designability, microporous framework materials offer ideal matrices to host qubits. They exhibit tunable phonon dispersion relations and spin distributions, enabling optimization of essential qubit properties including the spin-lattice relaxation time (T) and decoherence time.

A Zeolitic Octahedral Metal Oxide with Ultra-Microporosity for Inverse CO /C H Separation at High Temperature and Humidity.

Separation of CO /C H to obtain pure C H presents a challenge for the chemical industry. CO -selective adsorbents are favored because of the convenient separation process. However, there are only a few CO -selective adsorbents that can effectively isolate CO from CO /C H , and there is almost no research on CO /C H separation under harsh conditions, such as with high temperatures and humidities.

Assembly of ϵ-Keggin Polyoxometalate from Molecular Crystal to Zeolitic Octahedral Metal Oxide.

Zeolitic octahedral metal oxides are inorganic crystalline microporous materials with adsorption and redox properties. New ϵ-Keggin nickel molybdate-based zeolitic octahedral metal oxides have been synthesized. P NMR spectroscopy shows that reduction of Mo -based molybdates forms an ϵ-Keggin polyoxometalate that immediately transfers to the solid phase.