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1Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, People's Republic of China.
Summary
This study describes the crystal structure of a macrocyclic polyamine hydrate. The molecules form stacked rows with channels and an extensive hydrogen-bonding network involving water molecules.
Area of Science:
- Crystal chemistry
- Supramolecular chemistry
Background:
- Macrocyclic polyamines are versatile ligands with applications in coordination chemistry and molecular recognition.
- Understanding their solid-state structures is crucial for designing new materials and catalysts.
Purpose of the Study:
- To elucidate the crystal structure of a specific macrocyclic polyamine hydrate, C(24)H(38)N(6).5H(2)O.
- To investigate the intermolecular interactions and hydrogen-bonding network within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the molecular and crystal structure.
- Analysis of intermolecular interactions, including hydrogen bonding, was performed.
Main Results:
- The centrosymmetric macrocyclic polyamine molecules are arranged in stacked rows along the a axis.
- Channels are present between the stacked polyamine molecules.
- An extensive hydrogen-bonding network is formed by intermolecular interactions between polyamine, water molecules, and water-water hydrogen bonds.
Conclusions:
- The crystal structure reveals a unique packing motif for this macrocyclic polyamine hydrate.
- The identified hydrogen-bonding network plays a significant role in stabilizing the crystal structure.
- This structural information can guide the design of related supramolecular assemblies.