Metalloceneincorporated Hybrid Singly N-Methyl N-Confused Calixphyrins: Synthesis, Characterization, Protonation and Deprotonation Studies

Nyancy, Halder and Manik, Jana and Sanjay, Kottekad and Usharani, Dandamudi and Harapriya, Rath (2022) Metalloceneincorporated Hybrid Singly N-Methyl N-Confused Calixphyrins: Synthesis, Characterization, Protonation and Deprotonation Studies. Chemistry: An Asian Journal. pp. 1-7.

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Abstract

Rational design and isolation of two hitherto unknown highly stable single conformer of ferrocene in- corporated meso-aryl substituted singly N-methyl N-con- fused-calixphyrins have been achieved in quantitative yields. The solid-state crystal structure reveals the obvious trans- geometry for the meso-protons with the possibility for both the macrocycles to exist either racemic or enantiomer forms. However, thorough solution-state spectroscopic character- ization strongly concludes the experimental isolation of a single isomer for both the macrocycles. The drastic modifica- tion of UV-vis spectral patterns upon imine pyrrole N protonation and amine pyrrole NH deprotonation of both the calixphyrins could pave way for these macrocycles to act as opto-electronic materials. The conformational preorganiza- tion and protonation and deprotonation induced conforma- tional reorganization have been extensively studied by solution state spectroscopic techniques, solid state X-ray crystal structure and in depth DFT level theoretical calcu- lations.

Item Type:	Article
Uncontrolled Keywords:	N-Methyl N-Confused Calixphyrins, UV-vis spectral patterns
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 24 Organic Chemistry
Divisions:	Food Safety Analytical Quality Control Lab
Depositing User:	Somashekar K S
Date Deposited:	18 Dec 2025 11:18
Last Modified:	18 Dec 2025 11:18
URI:	http://ir.cftri.res.in/id/eprint/20212

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