Tetra-aqua-bis(5-hydroxy-nicotinato-κN)cadmium(II)

Area of Science:

• Inorganic Chemistry
• Crystal Engineering
• Coordination Chemistry

Background:

• 5-hydroxy-nicotinic acid is a versatile ligand in coordination chemistry.
• Cadmium(II) complexes are of interest due to their diverse structural motifs and potential applications.

Purpose of the Study:

• To synthesize and characterize a novel coordination compound of cadmium(II) with 5-hydroxy-nicotinic acid.
• To investigate the crystal structure and supramolecular assembly of the resulting complex.

Main Methods:

• Single crystal X-ray diffraction was used to determine the molecular and crystal structure.
• The compound was synthesized via a reaction between cadmium chloride and 5-hydroxy-nicotinic acid.

Main Results:

• A new cadmium(II) coordination compound, [Cd(C(6)H(4)NO(3))(2)(H(2)O)(4)], was successfully synthesized.
• The crystal structure reveals a distorted octahedral geometry around the Cd(II) center, coordinated by two nitrogen atoms from 5-hydroxy-nicotinic acid ligands and four water molecules.
• Intermolecular O-H⋯O hydrogen bonds stabilize the crystal structure, leading to a three-dimensional network.

Conclusions:

• The study successfully synthesized and characterized a novel cadmium(II) complex with 5-hydroxy-nicotinic acid.
• The hydrogen bonding interactions play a crucial role in the formation of the extended three-dimensional supramolecular architecture.