Chemists make ‘impossible’ molecules that break 100-year-old bonding rule The molecules were deemed too unstable to make, but experiments show they can be ‘captured’ in certain reactions to yield useful products. Gemma Conroy News Explainer | 25 October 2024 Will AI’s huge energy deman...
The F − anion will donate a pair of electrons to the B atom in the BF 3 molecule to form the tetrahedral BF 4 − anion. This type of bonding where one atom, the donor, supplies both electrons to form the bond to the second atom, the acceptor, is termed Coordinate, or sometimes...
Adsorbents for efficient hydrogen storage require both a high gravimetric and volumetric storage capacity. A catenation strategy guided by hydrogen bonding is now demonstrated for the construction of supramolecular crystals with both high volumetric and large gravimetric surface areas, robustness and ideal ...
Hiberty, Valence bond mixing and curve crossing diagrams in chemical reactivity and bonding, Adv. Quant. Chem. 26 (1995)... S Shaik,PC Hiberty - 《Advances in Quantum Chemistry》 被引量: 223发表: 1995年 Quantum mechanical valence study of a bond‐breaking–bond‐forming process in ...
The strong Al-O bonding effectively inhibits the release of lattice oxygen (O) at elevated temperatures, which is supported by the positive formation energy of O vacancy from first-principal calculations. Besides, theoretical calculations demonstrate that the appropri-ate amount of Al doping ...
Role of hydrogen bonding in supramolecular architectures Self-healing materials using supramolecular interactions Molecular cages and their use in encapsulation Supramolecular chemistry in organic electronics Design of supramolecular hydrogels for biomedical applications Chirality in supramolecular systems Supramolecular...
Whereas, despite IVB group elements Zr and Hf have stronger bonding energy with oxygen, their larger ionic radii actually impede their diffusion into the cathode, thereby they can not improve the cycling stability. Our findings uncover the functional origin of doped elements with their dynamic ...
A valence bond study is carried out to explore the structure, bonding, and π-delocalization in the E3(NH)3(E=Ge, C, Si, Sn, Pb) rings. Our findings indicate that a nonbonded structure, wherein the π-electron density is localized on each N atom, dominates the ground states of these...
Alcohol - Reactions, Chemistry, Uses: Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. A multistep synthesis may use Grignard-like reactions to form an alcoho
Coordination chemistryprovides an attractive means for forming well-orderedmultilayer films. The preferred bonding geometries of metals and ligands used for layer buildup define the structures of themultilayered material. Although the concept of LbL became widely known with the LbL buildup of oppositely...