In the title compound, C24H19N, the di-methyl-amino group is inclined to the benzene ring by 2.81 (9)°. Their mean plane makes a dihedral angle of 64.12 (2)° with the mean plane of the pyrene ring system [r.m.s. deviation = 0.031 (1) Å]. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, which connect neighbouring mol-ecules into columns along the c axis.

This work presents an extention of the polarizable continuum model to explicitly describe the time-dependent response of the solvent to a change in the solute charge distribution. Starting from an initial situation in which solute and solvent are in equilibrium, we are interested in modeling the time-dependent evolution of the solvent response, and consequently of the solute-solvent interaction...

The structure of the 1:1 proton-transfer compound of 4-chloro-aniline with 4,5-dichloro-phthalic acid (DCPA), viz. C(6)H(7)ClN(+)·C(8)H(3)Cl(2)O(4) (-), has been determined at 130 K. The non-planar hydrogen phthalate anions and the 4-chloro-anilinium cations form two-dimensional O-H⋯O and N-H⋯O hydrogen-bonded substructures which have no peripheral extension. Between the sheets there are weak π...

In the Atlantic Coastal Plain region of southern Georgia (USA), cotton (Gossypium hirsutum L.) acreage increased threefold in the past decade. To more effectively protect water quality in the region, best management practices are needed that reduce pesticide runoff from fields in cotton production. This study compared runoff of two herbicides, fluometuron [N,N-dimethyl-N'-[3-(trifluoromethyl)-p...

Densities (ρ) speeds of sound (u) and viscosities (η) binary mixtures formamide (F) with aniline (A), N-methylaniline (NMA)and N,N-dimethylaniline (DMA), including those pure liquids, over the entire composition range were measured at temperatures (303.15, 308.15 313.15) K 0.1 MPa. Using experimental data, excess parameters (VE, ksE), deviation in viscosity (Δη), partial molar volumes, V¯m,1E V...

The title compound, C(19)H(18)N(4)O(4)S, exists as a zwitterion in the solid state, with nominal proton transfer from a phenol group to the imine N atom. The 2,3-dihy-droxy-benzaldehyde fragment is oriented at a dihedral angle of 35.51 (11)° to the adajacent aniline group and makes a dihedral angle of 76.99 (6)° with the 4,6-dimethyl-pyrimidin-2-amine group. Intra-molecular O-H⋯O and N-H⋯O hydr...

The crystal structures of four bromo-arenes based on 2,6-di-methyl-bromo-benzene are reported, which are differentiated according the functional group X placed para to the Br atom: X = CN (4-bromo-3,5-di-methyl-benzo-nitrile, C9H8BrN), (1), X = NO2 (2-bromo-1,3-dimethyl-5-nitro-benzene, C8H8BrNO2), (2), X = NH2 (4-bromo-3,5-di-methyl-aniline, C8H10BrN), (3) and X = OH (4-bromo-3,5-di-methyl-phe...

1,2,2-Tricyanoethanes, Elimination of HCN The elimination of HCN from 9-dicyanomethyl-fluorene (2), 1,1-diphenyl-1,2,2tricyanoethane (3), and 2-phenyl-I,l,2-tricyano-propane (4) in anhydrous methanol has been studied and shown to occur via an (E l)anion mechanism. Elimination of HCN from 2 in acidic, buffered and MeO~/MeOH solutions have also been studied. Addition of water or benzene to the re...

In this work, modification of carbon paste electrode surface with poly (2, 5-Dimethyl aniline) (P-2,5-DMA) by using electrochemical polymerization was described. Then, transition metal ions of Ni(II) were incorporated into the polymer film by two ways. At first way, the polymeric modified electrode was immersed in 0.2 M NiSO4 solutions and the second way was carried out by electrodeposition of ...