Hengyang Normal University

About: Hengyang Normal University is a education organization based out in Hengyang, China. It is known for research contribution in the topics: Graphene & Adsorption. The organization has 1087 authors who have published 1280 publications receiving 13850 citations. The organization is also known as: Hengyang Teachers' College & Héngyáng Shīfàn Xuéyuàn.

Syntheses, crystal structures and luminescence of zinc(II) and cadmium(II) complexes with 4′-substituted 2,2′:6′,2″-terpyridines

Abstract: Four terpyridine coordination complexes, [Zn(meophtpy)2]·(ClO4)2·(H2O) (1), [Cd(meophtpy)2]·(ClO4)2 (2), [Zn(nh2phtpy)2]·(ClO4)2 (3), and [Cd(nh2phtpy)2]·(ClO4)2 (4) (meophtpy = 4′-(p-methoxylphenyl)-2,2′:6′,2″-terpyridine, nh2phtpy = 4′-aminophenyl-2,2′:6′,2″-terpyridine), were synthesized using the solvothermal method. These complexes have been characterized by IR spectra, elemental analyses, and X-ray diffraction. In all these complexes, the metal ions are coordinated by six nitrogens from two terpyridines. 3-D networks have been constructed by hydrogen bonds and π–π interactions. The luminescence of these four complexes has been investigated in the solid state at room temperature.

Direct stereoselective construction of cyclopropane α-amino acid with contiguous quaternary centers via [4 + 2] annulation reaction

Abstract: A direct diastereoselective synthetic approach to useful cyclopropane α-amino acid was established via base-promoted [4 + 2] annulations between o-aminobenzaldehydes and alkyl 2-aroyl-1-chlorocyclopropanecarboxylates. The annulation reaction proceeded quickly under mildly basic conditions, affording α-aminocyclopropanecarboxylic acid derivatives in moderate to excellent yields with high diastereoselectivities (up to 19 : 1).

The inhibitory activity of p-coumaric acid on quorum sensing and its enhancement effect on meat preservation

Abstract: The transparent inhibition zone by p-coumaric acid (pCA) proving its inhibitory effect on quorum sensing. The treatment with a mixture of 0.1% Potassium Sorbate (PS)+0.01% pCA resulted in gradual i...

Three-dimensional deformation monitoring and simulations for the preventive conservation of architectural heritage: a case study of the Angkor Wat Temple, Cambodia

Abstract: Architectural heritage has important historical, artistic, and technological value. However, these sites are subject to long-term degradation and are sensitive to disturbances from the surrounding ...