2-[(trifluoroacetyl)amino]benzoquinone and the hydrochloride and perchlorate salts of 2-aminohydroquinone |
| |
Authors: | David Wiedenfeld Mark Minton Vladimir Nesterov Christine Montoya |
| |
Institution: | (1) Department of Natural Sciences – Chemistry, New Mexico Highlands University, Las Vegas, New Mexico, 87701 |
| |
Abstract: | Hydrogen bonding parameters for the title materials are reported. 2-(trifluoroacetyl)amino]benzoquinone crystallizes in the monoclinic space group P2
1/c, with a = 18.195(4), b = 5.110(1), c = 9.635(2), = 104.22(3)°, V = 868.4(3) Å3, and Z = 4. This compound exhibits two weak intramolecular hydrogen bonds. The first is between a hydrogen atom of the quinone ring and the carbonyl oxygen of the trifluoroacetamide group; it has a distance of 2.24 Å and a C—H![sdot](/content/ph84468281jul5t5/xxlarge8901.gif) ![sdot](/content/ph84468281jul5t5/xxlarge8901.gif) sO angle of 122°. The second is between the hydrogen atom of the trifluoroacetamide group and a quinone carbonyl group; it has a distance of 2.26 Å and a N—H![sdot](/content/ph84468281jul5t5/xxlarge8901.gif) ![sdot](/content/ph84468281jul5t5/xxlarge8901.gif) sO angle of 107°. 2-Aminohydroquinone hydrochloride crystallizes in the orthorhombic space group Pca21, with a = 16.220(3), b = 5.211(1), c = 8.719(2), V = 737.0(2) Å3, and Z = 4. 2-Aminohydroquinone perchlorate crystallizes in the orthorhombic space group P212121, with a = 7.110(1), b = 7.139(1), c = 18.043(4), V = 915.8(3) Å3, and Z = 4. All active hydrogens of the two salts exhibit intermolecular hydrogen bonds that serve to organize a three-dimensional framework for each case. |
| |
Keywords: | Crystal structure intermolecular hydrogen bonds 2-[(trifluoroacetyl)amino]benzoquinone 2-aminohydroquinone |
本文献已被 SpringerLink 等数据库收录! |
|