The tetrahedron is the simplest of all polyhedra. Any four points in space that are not all on the same plane mark the corners of four triangles. The triangles in turn are the faces of a tetrahedron.

Tokyo - Water holds a special place among liquids for its unusual properties, and remains poorly understood. For example, it expands just upon the freezing to ice, and becomes less viscous under ...

The tetrahedral geometry of four-coordinate carbon atoms is a steadfast property of organic compounds. Nevertheless, chemists are still attracted to the possibility of twisting or squashing a ...

Here, we describe high resolution crystal structures for cryogenically trapped intermediates in the hydrolysis of the acyl–enzyme complex between β-casomorphin-7 and elastase. The results provide the ...

Researchers have designed and built a new chemical tool inspired by natural metal-containing enzymes in living organisms. The product, a tetrahedral 'chiral zinc', maintains its shape for years, ...

Figure one shows the pyrochlore lattice structure of spin ice and spins on a tetrahedron. The left shows Pyrochlore lattice structure. Each lattice point (red) hosts an electron spin. The right shows ...

Scientists have used computer simulations and a two-state mathematical model to analyze previous data on water and predicted the location of a liquid-liquid critical point in supercooled water. This ...

In metal-containing supramolecular complexes, organic ligands self-assemble around metal atoms to form molecular cages of various sizes and shapes. Researchers can change a complex’s shape by changing ...

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