In the title complex, [Eu(C₁₄H₁₅N₂O₂)₃(C₁₈H₁₅OP)₂], the Eu^III ion is surrounded by eight O atoms, six from the β-diketonate ligands and two from the triphenyl­phosphine oxides, with a distorted triangular dodeca­hedral coordination.

The crystal structure of the title compound, C₁₈H₁₆ClN₃O₂, shows a strong intra­molecular O—HN hydrogen bond.

The title compound, C₁₈H₁₆N₄O₄, has been synthesized by condensation of 5-nitro­salicylaldehyde and 4-amino­anti­pyrine. There are two molecules in the asymmetric unit. The crystal structure shows a strong intra­molecular O—HN hydrogen bond, which leads to the existence of a phenol–imine tautomer.

The title compound, C₁₀H₁₀N₆OS, was synthesized by the reaction of 1H-1,2,4-triazol-3-yl­hydrazine with phenyl isocyanate in benzene. The mol­ecule is non-planar, the dihedral angle between the two aromatic rings being 62.07 (7)°. N—HO, N—HN and N—HS hydrogen bonds are observed.

The crystal structure of the title compound, C₁₈H₁₅Cl₂N₃O₂, shows a strong intra­molecular O—HN hydrogen bond [NO = 2.598 (3) Å, O—H = 0.81 (3) Å, HN = 1.86 (3) Å and O—HN = 152 (3)°], which leads to the existence of a phenol–imine tautomer.

The title compound, C₁₁H₁₀N₂O₄, was synthesized from benzimidazole and chloro­acetic acid. In the crystal structure, O—HO hydrogen bonds lead to the formation of extended one-dimensional chains along the [101] direction.

The crystal structure of the title compound, [Zn(C₉H₆NO)₂(H₂O)₂], has been redetermined with better R factors (R₁ = 0.0471) and higher accuracy than in previous publications. The molecule is centrosymmetric.

A high-performance double-crystal-monochromator soft X-ray (DCMSX) beamline has been constructed at the Synchrotron Radiation Research Center (SRRC). This beamline delivers monochromatic photon beams with energies from 1 to 9 keV and a resolving power (E/ΔE) of up to 7000. This beamline provides users with an opportunity to study many important materials, such as high-T_c superconductors, magnetic materials, catalysts, super-alloy compounds etc. Excellent EXAFS and NEXFS spectra have been routinely obtained from this beamline. Several interesting research projects are currently being conducted at this beamline. All the results show that this beamline has been constructed to meet its design goals.

In the crystal structure of the title compound, C₁₀H₉N₅O₂, inter­molecular N—HN [HN = 2.13 (2) Å] and N—HO [HO = 2.016 (18) and 2.05 (2) Å] hydrogen bonds link mol­ecules into a two-dimensional framework.

A high-flux and high-resolution VUV beamline (4-40 eV) has been designed and is under construction at SRRC. This beamline, which collects 50 mrad of horizontal radiation, uses a 6 m cylindrical-grating monochromator with an incident angle of 70° instead of the conventional normal-incidence-monochromator (NIM) design. Special features, such as movable entrance slit, bendable vertical focusing mirror and movable curved exit slit, are employed to enhance greatly the beamline performance. With both slit openings set at 10 µm, the energy-resolving power can reach as high as 70000. Photon fluxes of 1 × 10¹³ and 1 × 10¹⁰ photons s^-1 are calculated for energy-resolving powers of 1000 and 40000, respectively. The best image size at the sample position is smaller than 0.45 × 0.2 mm.

In the title compound, C₂₂H₂₀O₅, the substituted benzene rings are twisted away from the furan ring, making dihedral angles of 54.91 (14) and 20.96 (15)° with the furan ring. The dihedral angle between the two benzene rings is 46.89 (13)°. One ethyl group of one eth­oxy­carbonyl unit is disordered over two sets of sites with occupancies of 0.56 (12) and 0.44 (12). In the crystal, weak intra­molecular C—HO hydrogen bonds link the mol­ecules into chains along the c axis.