. 2016 Apr 25;9(5):307. doi: 10.3390/ma9050307
© 2016 by the authors;
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 1.
The 1H NMR spectrum of Sample 2 from Table 1.
