Synthesis and Characterization of Novel Ag(I)-18C6/DB18C6 Complexes

The bonding pattern and structure of complexes were suggested from elemental analysis, molar conductivity, UV-Vis, IR, and 1H-NMR spectral analysis. Crowns and crypts have the unusual property to form stable complexes with metal ions.1-2 These macrocycles which contain varying combinations of ligati...

Full description

Saved in:
Bibliographic Details
Published in:Asian Journal of Research in Chemistry 2020-03, Vol.13 (2), p.75-81
Main Authors: Chitlangia, Seema, Ranjan, Rajeev
Format: Article
Language:English
Subjects:
Absorption
Binding sites
Bond energy
Charge transfer
Chemical analysis
Chemical bonds
Conjugation
Coordination compounds
Crypts
Dipole interactions
Donors (electronic)
Electron transitions
Electrons
Energy
Energy levels
Ethanol
Infrared analysis
Ligands
Metal ions
NMR
Nuclear magnetic resonance
Orbitals
Organic compounds
Oxygen
Salt
Sodium
Spectral analysis
Spectrum analysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The bonding pattern and structure of complexes were suggested from elemental analysis, molar conductivity, UV-Vis, IR, and 1H-NMR spectral analysis. Crowns and crypts have the unusual property to form stable complexes with metal ions.1-2 These macrocycles which contain varying combinations of ligating atoms can be tailored to accommodate specific metal ions by the fine tuning of the ligand design features3-5, such as the macrocyclic hole size6, nature of the ligand donors, donor set, donor array, ligand conjugation, ligand substitution, number and sizes of the chelate rings, ligand flexibility, and nature of the ligand backbone7-10. The bond energy in organic compound possess energy equivalent to absorption energy of ultraviolet or visible radiation as they form bonds by ion-dipole interactions and/or involvement of non-bonding electrons with central metal ions.27-29 The electrons of bonding orbitals can go to higher energy by excitement due to absorption of radiation in UV region. The antibonding orbitals a· and n· are quantized energy level of higher energies. Besides bonding electronic transitions, intermolecular transition known as charge transfers (C-T) and M ^ L transitions of high intensity are usually observed in dyes, complex molecule and coordination complexes.30 IR study:
ISSN:0974-4169
0974-4150
DOI:10.5958/0974-4150.2020.00016.4