TY - JOUR
T1 - The second orthorhombic polymorph of zwitterionic metanilic acid at 130 K
AU - Smith, Graham
AU - Wermuth, Urs D.
AU - Young, David J.
AU - White, Jonathan M.
PY - 2006/3/1
Y1 - 2006/3/1
N2 - The low-temperature (130 K) crystal structure of the second orthorhombic polymorph of metanilic acid (3-aminobenzenesulfonic acid), C6H 7NO3S, shows the presence of two independent and conformationally similar molecules of the zwitterionic acid (3- ammoniobenzenesulfonate) in the asymmetric unit; these interact through hydrogen bonding to give a cyclic R2
2(14) association. Peripheral hydrogen bonding gives a three-dimensional framework polymer, such as was found in the earlier polymorph [Hall & Maslen (1965), Acta Cryst. 18, 301-306], but the overall structural make-up is significantly different.
AB - The low-temperature (130 K) crystal structure of the second orthorhombic polymorph of metanilic acid (3-aminobenzenesulfonic acid), C6H 7NO3S, shows the presence of two independent and conformationally similar molecules of the zwitterionic acid (3- ammoniobenzenesulfonate) in the asymmetric unit; these interact through hydrogen bonding to give a cyclic R2
2(14) association. Peripheral hydrogen bonding gives a three-dimensional framework polymer, such as was found in the earlier polymorph [Hall & Maslen (1965), Acta Cryst. 18, 301-306], but the overall structural make-up is significantly different.
UR - http://www.scopus.com/inward/record.url?scp=33644918579&partnerID=8YFLogxK
U2 - 10.1107/S1600536806003953
DO - 10.1107/S1600536806003953
M3 - Article
AN - SCOPUS:33644918579
VL - E62
SP - o948-o950
JO - Acta Crystallographica Section E: Crystallographic Communications
JF - Acta Crystallographica Section E: Crystallographic Communications
SN - 1600-5368
IS - Part 3
ER -