Related Experiment Video
Updated: Jul 18, 2026

16:20
Hyperpolarized Xenon for NMR and MRI Applications
Published on: September 6, 2012
Barium induced modulation of NIR emission in a neodymium cryptate complex
Jonathan B Coldwell1, Cara E Felton, Lindsay P Harding
1School of Chemistry, Cardiff University, UK.
Abstract:
The complex [NdL](III) is based upon a crown ether-appended ditopic cryptate ligand and demonstrates a near-infrared fluorescence response to Ba(II).
More Related Videos
12:52Iridium(III) Luminescent Probe for Detection of the Malarial Protein Biomarker Histidine Rich Protein-II
Published on: July 7, 2015
11:20An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
Published on: August 30, 2017
Related Concept Videos
Valence Bond Theory
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
Nuclear Overhauser Enhancement (NOE)
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...