Finally, the -o or --aromatic-circles option ringsrs aromatic rings with circles instead of discrete bonds.
Three simple rules are followed to build aromatic structures [80, 81]: (1) Circles denoting π-sextets cannot be drawn in adjacent benzenoid rings.
Inland, high granite peaks tower up in breathtaking shapes while kites and buzzards circle the aromatic vegetation.
Another interesting bond recognition problem occurs in aromatic systems, where a circle is often used to represent the conjugated electron system of the benzene ring.
The "A" represents any non-hydrogen atom, "dashed" double bond indicates an aromatic bond and the yellow circle marks the central atom of the fragment.
The DOPC molecules, in liquid phase, probably spread over the rGO surface with their tails associating closely with the hydrophobic aromatic plane, and accumulate to form circles of high area surrounding the defect holes on rGO sheets.
The first of these O···H close contacts involving the central phenyl ring differentiates the pairwise O···H interaction in 6 from those observed in 1– 3 since one of the carbonyl oxygens of the pairwise interaction interacts with two aromatic protons (the second proton is circled in orange in Figure 7c) rather than simply one.
Smoke is rising from behind the two large-scale teepees in the farmyard where a new clay oven is being fired up, and a dozen fresh-faced employees at RCHQ are standing in a circle apparently hand-sifting its aromatic fuel, while talking about the weekend's parties.
A green open circle indicates the missing of aromatic atoms in hydrophobic region of BAF11.
At the Times Warner Center gala, the colorfully dressed attendees gazed out two-story-high windows at a rainy Columbus Circle and were offered not an aromatic curry as many of the non-Indians were looking forward to, but haute New York ballroom cuisine: poached pear with New York State blue cheese tartlet and scallion-crusted chicken with a baby frisée salad.
According to Clar's rule, the aromatic sextet or π-sextet is denoted by a circle.
