Multiple photoluminescence from pyrene-fused hexaarylbenzenes with aggregation enhanced emission features

Multiple photoluminescence, involved in monomer emission, excimer emission and charge transfer emission origin from new pyrene-fused hexaarylbenzenes (HAB) compounds were observed, which were designed and synthesized (in high yield) via the Diels-Alder reaction of bis(2-tert-butylpyren-6-yl)acetylene and tetraphenylcyclopentadienone. Although the distinction of between two molecules arises only from the geometrical position of one of the pyrenes, the NMR spectra, the crystal packing and the physicochemical properties of these pyrene-based HAB hybrids are distinctly different both in their solution state and in aggregation-state. The X-ray diffraction analysis clearly indicated that the pyrene moieties in this system would form different crystal packing in crystal state that can induce a fantastic multiple photoluminescence phenomenon

A simple example.

<p>A simple example.</p

The network representation of Table 1 (the blue lines) and Table 2 (including the red line).

<p>The network representation of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120247#pone.0120247.t001" target="_blank">Table 1</a> (the blue lines) and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120247#pone.0120247.t002" target="_blank">Table 2</a> (including the red line).</p

Different methods applied to the example of Table 3.

<p>Different methods applied to the example of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120247#pone.0120247.t003" target="_blank">Table 3</a>.</p

One more column for Table 1.

<p>One more column for <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120247#pone.0120247.t001" target="_blank">Table 1</a>.</p

Different methods adopted on the real dataset.

<p>Different methods adopted on the real dataset.</p

Table for Example 2.6.

<p>Table for Example 2.6.</p

The network representation of Table 3 (a bolder line means higher weight).

<p>The network representation of <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120247#pone.0120247.t003" target="_blank">Table 3</a> (a bolder line means higher weight).</p

Average outcome in the simulations of the difference in Kendall’s tau measure, between the original data and those obtained by adding <i>X</i> fake.

<p>There are 9 different methods, and <i>X</i> varies from 1 to 5. Lower plot shows Student’s <i>t</i> comparison of the NC method with <i>β</i> = 2/(<i>λ</i>⁺ + <i>N</i>) with respect to average and SD—confidence intervals are shown in the legend.</p

Additional file 1 of An adaptive association test for microbiome data

Seven supporting figures and one supporting table. A description of each is given within the file. (PDF 3778 kb