Guest organization by an amino acid-derived amide linkage in a cluster-based open framework

Ramanathan Vaidhyanathan, Craig A. Bridges, Darren Bradshaw, Matthew J. Rosseinsky

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Amino acid-functionalized Ni4(OH)3Cl tetrahedral clusters containing peptide linkages are linked into hexagonal planes connected pairwise into layers by neutral linkers. These layers stack to afford an open-framework structure, with large cavities occupied by non-ice-geometry (H2O)16 clusters. The layer stacking motif and the guest cluster geometry are both determined by an intricate hierarchy of hydrogen-bonding interactions defined by the array of peptides supported by the tetrahedral units. The (H2O)16 cluster adopts a non-ice-like structure due to the resulting highly symmetrical arrangement of the amide groups around the water molecules and the participation of two hydroxide anions per cluster.

Original languageEnglish
Pages (from-to)4348-4356
Number of pages9
JournalCrystal Growth and Design
Volume10
Issue number10
DOIs
StatePublished - Oct 6 2010
Externally publishedYes

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