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Published in 2017 at "CrystEngComm"
DOI: 10.1039/c7ce00556c
Abstract: We report the synthesis and X-ray solid state structures of five squaric acid derivatives, i.e. a zwitterionic compound, namely 3-hydroxy-4-(2-pyridin-2-yl-ethylamino)cyclobut-3-ene-1,2-dione (1), a squaramide monoester, 3-ethoxy-4-(2-pyridin-2-yl-ethylamino)cyclobut-3-ene-1,2-dione (2), two differently solvated (EtOH and DMSO/water) disquaramides 3,4-bis((4-hydroxyphenethyl)amino)cyclobut-3-ene-1,2-dione (3…
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Keywords:
solid state;
squaric acid;
cyclobut ene;
combined crystallographic ... See more keywords