Crystal structure ofcatena-poly[[[triaquastrontium]-di-μ2-glycinato] dibromide]

In the title coordination polymer, {[Sr(C2H5NO2)2(H2O)3]Br2}n, the Sr2+ion and one of the water molecules are located on twofold rotation axes. The alkaline earth ion is nine-coordinated by three water O atoms and six O atoms of the carboxylate groups of four glycine ligands, two in a chelating mode and two in a monodentate mode. The glycine molecule exists in a zwitterionic form and bridges the cations into chains parallel to [001]. The Br−counter-anions are located between the chains. Intermolecular hydrogen bonds are formed between the amino and carboxylate groups of neighbouring glycine ligands, generating a head-to-tail sequence. Adjacent head-to-tail sequences are further interconnected by intermolecular N—H...Br hydrogen-bonding interactions into sheets parallel to (100). O—H...Br and O—H...O hydrogen bonds involving the coordinating water molecules are also present, consolidating the three-dimensional hydrogen-bonding network.

The effect of electric field on interaction of glycine with (6,0) single-walled boron nitride nanotube

The interaction between glycine molecule with (6, 0) zigzag model of single-walled boron nitride nanotube (BNNT) with H-terminated at the open ended, has been investigated in the presence and absence of the external electric field (EF), using the DFT-B3LYP/6-31G