Cover Picture: Giant Residual Dipolar 13C–1H Couplings in High-Spin Organoiron Complexes: Elucidation of Their Structures in Solution by 13C NMR Spectroscopy (Chem. Eur. J. 5/2013)
Article first published online: 17 JAN 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Chemistry - A European Journal
Volume 19, Issue 5, page 1513, January 28, 2013
How to Cite
Kruck, M., Wadepohl, H., Enders, M. and Gade, L. H. (2013), Cover Picture: Giant Residual Dipolar 13C–1H Couplings in High-Spin Organoiron Complexes: Elucidation of Their Structures in Solution by 13C NMR Spectroscopy (Chem. Eur. J. 5/2013). Chem. Eur. J., 19: 1513. doi: 10.1002/chem.201390010
- Issue published online: 17 JAN 2013
- Article first published online: 17 JAN 2013
- NMR spectroscopy;
- residual dipolar coupling;
- structure elucidation
Recent progress in the synthesis of highly luminescent CdSe, CdS, ZnSe, and other AIIBVI core–shell colloidal quantum dots and the influence of the core structure and the core–shell interface on their luminescence quantum yield is reported in the Minireview by M. Artemyev, I. Nabiev, and P. Samokhvalov on page 1534 ff. Short- and long-term prospects for the development of techniques for producing fluorescent quantum dots for biological and technological applications are also discussed.
A carbazole-based ratiometric fluorescent sensor has been developed. This sensor can be excited at λ=720 nm and can report mitochondrial viscosity over the range 1–950 cP within live cells and living tissues at a 60–130 μm depth by using highly reliable and accurate two-photon microscopy (TPM). See the Communication by J. Wang, X. Peng et al. on page 1548 ff. for more details.
A strategy to endow a helical polymer chain with dynamic spring-like (contraction/expansion) motion through the 1D self-assembly (aggregation/disaggregation) of peripheral amphiphilic molecules is described in the Full Paper by M. Numata et al. on page 1592 ff. In the current system, a semi-artificial helical polysaccharide presenting peripheral amphiphilic chlorophyll units has been employed as a power device that undergoes contractive motion in aqueous media, driven by strong π–π interactions of its chlorophyll units or by cooperative molecular recognition of bipyridyl-type ligands through pairs of chlorophyll units, thereby converting molecular information into the regulated motion of a spring.