Synthesis and crystal structure of an iminodiacetatocadmium(ii) complex containing benzimidazole

Abstract

The crystal structure of the complex tris(benzimidazole)iminodiacetato(2-)cadmium(II) dihydrate, (BZIM)₃(IDA)Cd·2H₂O, was determined by single-crystal X-ray methods. The Cd(II) ion assumes distorted octahedral coordination geometry formed by three benzimidazole molecules and an iminodiacetate dianion. The dianion chelates Cd(II) as a terdentate in the facial configuration. Weak intermolecular C–H···π interactions exist between neighboring benzimidazole rings. The thermal decomposition of the title complex has been studied. IR assignments based on the molecular structure have been made.

Keywords:

• Cadmium(II)
• Iminodiacetate
• Benzimidazole
• Crystal structure
• C–H···π interaction

Acknowledgements

The project was supported by the National Natural Science Foundation of China (29973036).