Figure 5
Dimers that involve an antiparallel arrangement in the structures in the complexes of DL-arginine with (a) oxalic, (b) malonic and (c) succinic acids and (d) DL-glutamate, and in the structures of (e) DL-arginine dihydrate. Type A specific interactions of the guanidyl groups with carboxylate groups also exist in most of the complexes. |