polycyclic aromatic hydrocarbons (such as, anthracene, benzo[a]pyrene and so on) are non-polar, hydrophobic compounds, which are not ionized. they are only slightly soluble in water. they are very dangerous compounds in the environment. the single-walled carbon nanotube (swnt) is used for removal and conversion of anthracene to low-risk products. in this study, electron transfer between anthrac...

Polycyclic aromatic hydrocarbons (PAHs) are considered to be significant environmental carcinogens. Additionally, various planar ring systems are capable of intercalating with DNA, leading to a number of drugs that possess chemotherapeutic activity. In this study, three new polyaromatic compounds with a side chain were synthesized, and spectroscopic as well as elemental analyses were performed....

Since its introduction by August Kekulé in 1865,1 the concept of aromaticity has been continuously conquering new territories in chemistry (refs 2-20 are only a small fraction of the published articles, reviews, books, and conference proceedings on this subject). Initially, aromaticity was developed for the following classes of organic compounds: (i) monocyclic planar conjugate hydrocarbons and...

A graph $G$ is a non-separating planar if there drawing $D$ of on the plane such that (1) no two edges cross each other in and (2) for any cycle $C$ $D$, vertices not are same side $D$.
 Non-separating graphs closed under taking minors subclass superclass outerplanar graphs.
 In this paper, we show only it does contain $K_1 \cup K_4$ or K_{2,3}$ $K_{1,1,3}$ as minor.
 Furthermore...

We consider the problem of obtaining higher order in regularization parameter $\epsilon$ analytical results for master integrals with elliptics. The two commonly employed methods are provided by use differential equations and direct integration parametric representations terms iterated integrals. Taking non-planar elliptic vertex as an example we show that addition to mentioned one can solution...

In the title molecule, C(9)H(7)N(5)O(3)S, there is an intramolecular N-H⋯O. The molecule is essentially planar, with the maximum deviation from the mean plane of the 18 non-H atoms being 0.135 (2) Å for the amine N atom. In the crystal, the molecules are connected via intermolecular N-H⋯O and N-H⋯S hydrogen bonds, forming two-dimensional networks lying parallel to (10[Formula: see text]). They ...