Subject: mild

From: Sally Klein <[email-masked]>
Date: Sat, 11 Nov 2006 20:19:04 +0100

These layers are then packed in a herring-bone arrangement.
The are two molecules in the asymmetric unit.
A phenylethynyl-substituted benzene ring is fused to a seven-membered ring, which binds two of the N atoms from separate rings of the glycoluril system. No significant hydrogen bonds are observed. N hydrogen-bonding interactions which give rise to dimers in the solid state.
A twofold rotation axis passes through the bridgehead C atom. O hydrogen bonds in addition to van der Waals interactions. O interconnect the molecules to form a three-dimensional network.
O hydrogen bonds, forming a supramolecular assembly. O interactions, forming dimers in the crystal structure.
A twofold rotation axis passes through the bridgehead C atom.
O hydrogen bond and the ethoxycarbonyl substituent is almost coplanar with the indole ring system. The molecules are stacked along the b axis. O hydrogen bonds, forming a three-dimensional network in the crystal structure.
N hydrogen bonds link molecules into two-dimensional layers. O interactions are also observed. O hydrogen bonding and S.
The molecule contains five six-membered rings, two five-membered rings and a three-membered ring.
Each molecule is nearly planar and they are roughly parallel to each other. The are two molecules in the asymmetric unit.
The other two N atoms are each linked to an O atom by methylene groups, forming a six-membered ring. A phenylethynyl-substituted benzene ring is fused to a seven-membered ring, which binds two of the N atoms from separate rings of the glycoluril system.
O hydrogen bonds are observed.
The plane of the ester group is almost perpendicular to the planes of the two aromatic rings.
O hydrogen bonds link adjacent molecules, forming a two-dimensional network.
O hydrogen bonds that link adjacent molecules into one-dimensional extended chains. O interactions help to form chains of molecules in the crystal structure. With the exception of the methylene H atoms, all atoms lie on a mirror plane. O interconnect the molecules to form a three-dimensional network. N hydrogen bonds together with weak N. O interactions, forming ribbons along the a axis.
O hydrogen bonds, forming a three-dimensional network in the crystal structure.