Three isostructural lanthanide metal−organic frameworks (Ln-MOFs, Ln = Eu 3+ , Tb 3+ , Dy 3+ ) containing Pterphenyl-2,2″,4,4″-tetracarboxylate ligand (H 4 L) with red, green, and blue luminescence were solvothermally synthesized. Thus, a series of mixed Ln-MOFs, (Eu x Tb y Dy 1-x-y )(HL)(H 2 O)(DEF) (DEF, N,N-diethylformamide), were designed and obtained, which displayed highly temperature-tuned emission in the visible region, including white light emission. Additionally, tunable luminescence can also be achieved by changing the excitation wavelength.

Four novel In3+ and Cd2+ based 1D coordination compounds constructed by double betaine ligands were synthesized and characterized structurally and optically. They assemble into 3D supra‐molecular architectures via different stacking or entanglement of 1D zigzag shaped chains, in which C–H···Cl and C–H···O hydrogen bonding interactions play a dramatic impact. Compound 1 displays a 1D + 1D → 3D four‐connect lvt net with 42·84 topology. Compound 2 assembles into a 3D architecture by inclined stacking of the adjacent zigzag chains. Compound 3 displays a 2D + 2D → 3D inclined polycatenation based on the resulting 2D (6, 3) layers that constructed by 1D chains. Compound 4 displays a 3D supra‐molecular architecture based on 1D chains, which were connected via the hydrogen bonding. Meanwhile, four compounds emit in the range of visible region owing to the intra‐ligand π*→π and/or π*→n electron transition induced florescence.

We synthesized two mixed-anion tin chalcogenides, Ba5Sn2Te1.327S7.673 (1) and Ba7Sn3Te0.839S12.161 (2), by a typical high-temperature solid-state reaction using an evacuated silica tube for the first time in the system of Ba–Sn–Q (Q = S1–x Te x ; 0 ≤ x ≤ 1). Compound 1 crystallizes in the monoclinic space group P21/c with unit cell parameters of a = 17.501(5) Å, b = 8.908(2) Å, c = 12.508(3) Å, and Z = 4. Compound 2 has an orthorhombic space group Pnma with a = 12.386(5) Å, b = 24.17(2) Å, c = 8.872(4) Å, and Z = 4. The structures of compounds 1 and 2 are both zero-dimensional (0D), and the formulas can be written as Ba5(SnIVQ4)2Q and Ba7(SnIVQ4)3Q with Sn/Q ratios of 2/9 and 3/13, respectively. Compounds 1 and 2 exhibit Q2– anion units, which is unique among Ba–Sn−Q compounds due to the [SnQ4] tetrahedra and low Sn/Q ratios. The phonon transport can be significantly scattered because the weakly bond Ba atom and highly distorted [SnQ4] tetrahedra can enhance the lattice anharmonicity. As a result, compounds 1 and 2 have low lattice thermal conductivity (κlat) values of ∼0.3–0.4 W m–1 K–1 in the range of 300 to 773 K, which results in a design strategy as thermoelectric materials.

The contraction ratio of lower bucket is an important parameter of the series jet characteristics of the allotypic hybridtype flip bucket (AHFB). Due to the effect of contraction in lower bucket and diffused in upper bucket, the jet flows cross and impact in the space domain. Systematic hydraulic model tests were developed to describe the rule of water-diversion and pressure distributions. This paper presents the variation of jet trajectory length and the local scour of this combined bucket. Based on these, the variation laws and estimation equations for hydraulic characteristics with different contraction ratio are proposed.