Preparation and properties of phase-change materials with enhanced radial thermal conductivities based on anisotropic graphene aerogels.

In this study, anisotropic graphene aerogels are prepared using the heat-flow method. Then, graphene aerogels with nanosilver particles are prepared a silver mirror reaction. The aerogels are soaked in paraffin wax and the effects on the properties of the wax are investigated.

Synthesis and Biological Evaluation of Dipeptide-Based Stilbene Derivatives Bearing a Biheterocyclic Moiety as Potential Fungicides.

The escalating demand for crop production, environmental protection, and food safety warrants the development of new fungicides with greater efficiency, environmental friendliness, and innocuous metabolites to fight against destructive phytopathogens. Herein, we report on the synthesis and antifungal activity of dipeptide-based stilbene derivatives bearing a thiophene-substituted 1,3,4-oxadiazole fragment for the first time. In vitro bioassay indicated that the target compounds had remarkable antifungal potency superior to previously reported counterparts without a dipeptidyl group, of which compound exhibited the highest activity against with EC values of 106.

Synthesis, fluorescence properties and applications of two novel oxadiazole-based stilbene optical brighteners as UV protectants for insect baculovirus.

Two novel symmetrical stilbene optical brighteners based on 1,3,4-oxadiazole bearing sodium sulfonate unit were synthesized. The two target compounds were characterized by NMR and elemental analysis. The photophysical processes of the target compounds were investigated by UV-Vis absorption and fluorescence emission spectra in different solutions.

Synthesis and optical properties of two novel stilbene derivatives containing 1,3,4-oxadiazole moiety.

Two novel stilbene derivatives containing 1,3,4-oxadiazole moiety were synthesized and characterized by elemental analyses, (1)H NMR, MS. The photophysical processes of the title compounds were investigated by UV-vis absorption and fluorescence emission spectra in different solutions. The fluorescence quantum yield (Phi) of 1a and 1b in THF is 0.

N'-(2-Chloro-benzyl-idene)-3,4,5-tri-methoxy-benzohydrazide methanol solvate.

In the title compound, C(17)H(17)ClN(2)O(4)·CH(4)O, the dihedral angle between the benzene ring planes is 5.29 (6)°. Inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into a chain along the a axis.

N'-(4-Fluoro-benzyl-idene)-3,4,5-trimethoxy-benzohydrazide.

The title compound, C(17)H(17)FN(2)O(4), is of inter-est due to its potential pharmaceutical and agrochemical activity. All three meth-oxy groups are twisted with respect to the attached aromatic ring [C-C-O-C torsion angles = 10.43 (18), 97.

N'-(2-Bromo-benzyl-idene)-3,4,5-tri-methoxy-benzohydrazide methanol solvate.

The title compound, C(17)H(17)BrN(2)O(4)·CH(4)O, was synthesized by the condensation of 3,4,5-trimethoxy-benzohydrazide and 2-bromo-benzaldehyde. The two aromatic rings are approximately planar, the dihedral angle being 3.08 (9)°.

1-[2-(3,4-Dichloro-phen-yl)-5-(3,4,5-trimethoxy-phen-yl)-2,3-dihydro-1,3,4-oxadiazol-3-yl]ethanone.

The title compound, C(19)H(18)Cl(2)N(2)O(5), was synthesized by the reaction of N'-(3,4-dichloro-benzyl-idene)-3,4,5-trimethoxy-benzo-hydrazide and acetic anhydride. The oxadiazole ring makes dihedral angles of 82.82 (7) and 9.

Mesaconitine.

The title compound, (1α,3α,6α,14α,15α,16β)-3,8,13,14,15-penta-hydr-oxy-1,6,16-trimeth-oxy-4-methoxy-methyl-20-methyl-acon-itan-8,14-diyl 8-acetate 14-benzoate, C(33)H(45)NO(11), a C(19) diterpenoid alkaloid, obtained from the roots of Aconitum kusnezoffii, has been crystallographically characterized in this study. Rings A, B and E have chair conformations, rings C and F display envelope conformations, and ring D adopts a boat conformation. There are inter- and intra-molecular O-H⋯O hydrogen bonds, the latter resulting in the formation of a non-planar seven-membered ring.