Sterically Rigid Bi-dentate N-(Aryl)imino-Acenapthenone (Ar-BIAO) Ligands in Zinc Coordination Sphere- Syntheses and Structures

Rej, Supriya and Panda, Tarun K (2014) Sterically Rigid Bi-dentate N-(Aryl)imino-Acenapthenone (Ar-BIAO) Ligands in Zinc Coordination Sphere- Syntheses and Structures. Masters thesis, Indian Institute of Technology, Hyderabad.

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Abstract

My thesis work describes the synthesis of six different 1-alkyl-N-(arylimino)acenaphthylen-1-ol compounds 1a, 1b, 2a, 2b, 3a and 3c as the racemic products by varying steric demand on the imino nitrogen atom of N-(aryl)imino-acenapthenone (Ar-BIAO) ligand. The synthesized imino-alcohols are characterized by FT-IR, 1H, 13C{1H} NMR spectroscopy. The soild state structures of compounds 1a, 1b, 2a and 3a are established by single crystal X-ray diffraction analysis. In the molecular structure compounds 1a and 3a crystallize only R-isomers in their respective asymmetric unit, whereas compound 1b has S-isomer only in its asymmetric unit. However compound 2a crystallizes in both R- and S- isomers in its asymmetric unit. In addition with this work one new chiral ligand, N-(1-phenylethylamine)imino-acenaphthenone (4) was synthesized by the reaction of acenaphthenequinone and (R)-1-phenylethylamine in 1:1 ratio. Compound 4 was characterized by FT-IR and 1H NMR spectroscopy

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