Quantum chemical calculations at the BP86/def2-TZVPP level have been carried out for the donor-acceptor complexes [(PMe3)2(E2Hn)] for n = 4, 2, 0. The focus of this works lies on the E–E bonding situation. The electronic structure of the molecules was analyzed with the EDA-NOCV method and with NBO calculations. The EDA-NOCV analysis of the E–E interactions in [(PMe3)2(E2Hn)] (n = 4, 2, 0) provi...

Background: The diabetes mellitus is a disease with the disability to metabolize carbohydrates. The global prevalence of diabetes has estimated to be 439 million in 2030. Modification to the diet is an important factor in curing diabetes. Virtual learning is an important tool to guarantee the access of all patients to the dietary instructions. Aim: To determine the effect of E-learning educatio...

The mol-ecule of the title Schiff base compound, C(15)H(14)N(2)O(5), was obtained from a condensation reaction of 4-acet-oxy-3-meth-oxy-benzaldehyde and 2-furyl-carbonyl-hydrazide. In the mol-ecule, the furyl ring makes a dihedral angle of 14.63 (10)° with the benzene ring. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains along the b axis. Futhermore, weak C-...

In the title compound, C(16)H(14)NS(+)·I(-), the cation has an E configuration about the C=C double bond of the ethyl-ene unit. The dihedral angle between the thio-phene ring and the quinolinium ring system is 11.67 (11)°. A weak C-H⋯S intra-molecular inter-action involving the thio-phene ring generates an S(5) ring motif. In the crystal structure, the iodide ion, located between the cations ar...

In the title compound, C21H19ClN2O2, the benzene ring and the naphthalene ring system are oriented at a dihedral angle of 65.24 (10)°. In the crystal, N-H⋯O, C-H⋯N and C-H⋯O hydrogen bonds link the mol-ecules, forming chains along the b-axis direction. Further C-H⋯O hydrogen bonds link the chains, forming corrugated sheets lying parallel to (10-1).