Synthesis of Hollowed Polyoxometalate with a Flipped VO Unit by the Elimination of a Centered Organic Molecule.

Mechanistic understanding of the formation of clusters plays a role in designing the structure-dependent properties. Based on the fact that anions act as templates to form spherical polyoxovanadates, various structures were reported by changing anions in the synthetic solution. In this work, another factor in the formation of spherical polyoxometalates was demonstrated.

Successful management of immunotherapy-resistant respiratory failure in anti-mitochondrial M2 antibody-positive myositis by modified lung volume recruitment therapy: A case report.

Rationale: Anti-mitochondrial antibodies (AMA) M2-positive myositis can lead to severe respiratory failure. Traditional immunotherapies sometimes fail to address respiratory failure. Herein, this CARE-compliant case report described a patient with AMA-M2-positive myositis who recovered from ventilation with tracheostomy owing to immunotherapy-resistant respiratory failure to spontaneous breathing after modified lung volume recruitment (mLVR) therapy.

Controlling the symmetry of hexamonodentate 3d-transition metal complexes through symmetry propagation from high-symmetry Ti-Mo and Zr-Mo clusters hydrogen-bonding interactions.

The symmetry of one of the simplest hexamonodentate complexes, [M(HO)] (M = Fe, Co, Ni, and Zn), was controlled by tuning interactions in the second coordination sphere. Highly symmetric Ti-Mo or Zr-Mo cluster cations acted as symmetry templates, imposing a crystallographic trigonal coordination geometry in the hexamonodentate complexes through intermolecular hydrogen-bonding interactions. Magnetic measurements revealed that the ideal trigonal symmetry results in weak spin-orbit coupling for high-spin Fe complexes, despite the T-term ground state in the octahedral geometry.

Reactivity control of nitrate-incorporating octadecavanadates by changing the oxidation state and metal substitution.

Clarification and control of the active sites at the atomic/molecular level are important to develop nanocatalysts. The catalytic performance of two oxidation states of nitrate-incorporating octadecavanadates, [VO(NO)] (V18) and [VO(NO)] (V18ox), and a copper-substituted one, [CuVO(NO)] (Cu2V16), in selective oxidation was investigated. Both V18 and V18ox possessed the same double-helical structures and one of two tetravalent vanadium sites of V18 was oxidized in V18ox.

Design and fabrication of a coupled high-Q photonic nanocavity system with large coupling coefficients.

In a previous work, we demonstrated a coupled cavity system where photons in one storage cavity can be transferred to another storage cavity at an arbitrary time by applying a voltage pulse to a third cavity placed in a p-i-n junction. In this work, we demonstrate methods to improve the transfer efficiency and photon lifetimes of such a coupled system. Firstly, we designed a photonic-crystal structure that achieves a large coupling coefficient without reducing the radiation quality factor compared to the previously proposed structure: The photonic-crystal design was changed to a more symmetric configuration to suppress radiation losses and then optimized using an automatic structure tuning method based on the Covariance Matrix Adaptive Evolutional Strategy (CMAES).