The purport of quantum teleportation is to completely transfer information from one party to another distant partner. However, from the perspective of parameter estimation, it is the information carried by a particular parameter, not the information of total quantum state that needs to be teleported. Due to the inevitable noise in environment, we propose two schemes to enhance quantum Fisher information (QFI) teleportation under amplitude damping noise with the technique of partial measurements. We find that post partial measurement can greatly enhance the teleported QFI, while the combination of prior partial measurement and post partial measurement reversal could completely eliminate the effect of decoherence. We show that, somewhat consequentially, enhancing QFI teleportation is more economic than that of improving fidelity teleportation. Our work extends the ability of partial measurements as a quantum technique to battle decoherence in quantum information processing.

The in situ hydrothermal reactions of UO 2 (NO 3 ) 2 with 1-oxo-4-cyanopyridine (ocpy) and ethyl (S)-lactate (e-la) afforded two unprecedented chiral 2D neutral luminescent square grids, uranyl-bis(1-oxo-4-pyridylcarboxylate) UO 2 (opyca) 2 (1) and homochiral uranyl-bis[(S)-lactate] (2). Their solid-

The hydrothermal hydrolysis reactions of Cd(ClO4)2·(6H2O) with 4‐[2‐(2‐pyridyl)ethenyl]benzonitrile (2‐PEBN) and 2‐[2‐(4‐cyanophenyl)ethenyl]‐8‐quinolinol (2‐CEQH) afforded two coordination polymers aquabis{4‐[2‐(2‐pyridyl)ethenyl]benzoate}cadmium(II) (1) and 2‐[2‐(4‐carboxylatophenyl)ethenyl]‐8‐quinolinolate(pyridine)cadmium(II) (2), respectively. Complexes 1 and 2 display strong blue and red fluorescent emission, respectively. Both 1 and 2 have a 2‐D grid framework containing a dimer as the corner unit. Crystal data for 1: monoclinic, P21/c, a = 15.2411(2), b = 19.8651(2), c = 15.6929(1) Å, α = β = 90, γ = 96.961(1)°; for 2: monoclinic, P21/c, a = 11.9219(1), b = 8.9515(1), c = 18.8204(1)Å, α = γ = 90.00, β = 104.372(1)°. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

Luminescent metal−organic frameworks (MOFs) coupled with proton conduction offer wide applications in clean energy and luminescence sensors. High stability and remarkable proton conductivity and sensing are requisites for practical applications. Specifically, high thermal and chemical stabilities under harsh conditions are important but challenging to achieve. Herein, an ultra-stable Cu(I)-tetrazolate MOF, NaCu 3 (mtz) 4 (1, mtz = 5-methyltetrazolate), was prepared. It possesses a 3D framework with 1D channels and exhibits outstanding thermal and chemical stabilities under various conditions, including water, organic solvents, and acidic and basic solutions of wide pH range. The compound exhibits strong green emissions, which can be ascribed to metal-toligand charge transfer, and selective fluorescence sensing for pollutant nitrobenzene. Moreover, compound 1 presents a high proton conductivity of over 10 −2 S cm −1 at 70 °C and 100% relative humidity. In 1, abundant uncoordinated nitrogen atoms on the pore walls act as H-bonding acceptors to achieve its high proton conductivity under waterassisted conditions. The compound is an unprecedented water-dependent proton conductor of the tetrazole-based MOF, providing a new avenue to design robust and high-performance proton-conductive MOFs.

Based on the quantum technique of weak measurement, we propose a scheme to protect the entanglement from correlated amplitude damping decoherence. In contrast to the results of memoryless amplitude damping channel, we show that the memory effects play a significant role in the suppression of entanglement sudden death and protection of entanglement under severe decoherence. Moreover, we find that the initial entanglement could be drastically amplified by the combination of weak measurement and quantum measurement reversal even under the correlated amplitude damping channel. The underlying mechanism can be attributed to the probabilistic nature of weak measurements.

The effect of the doped boron on the phase transition temperature between the monoclinic phase and the rutile phase of VO2 has been studied by performing first-principles calculations. It is found that the phase transition temperature decreases linearly with increasing the doping level of B in each system, no matter where the B atom is in the crystal. More importantly, the descent of the transition temperature is predicted to be as large as 83 K/at. % B, indicating that the boron concentration of only 0.5% can cause the phase transition at room temperature. These findings provide a new routine of modulating the phase transition of VO2 and pave a way for the practicality of VO2 as an energy-efficient green material.

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Hydrothermal treatment of 4-sulfo-l-phenylalanine (H2SPA) with Zn(OH)2 and Cu(OH)2 affords two novel 1-D chiral coordination polymers [Zn(SPA)(H2O)2] n (1) and [Cu(SPA)(H2O)2] n (2) as chiral supramolecular aggregates through strong hydrogen bonding of the sulfonate group. 1 also displays a strong second harmonic generation (SHG) response.