A polyhydride or superhydride is a compound that contains an abnormally large amount of hydrogen. This can be described as high hydrogen stoichiometry...

Lanthanum decahydride is a polyhydride or superhydride compound of lanthanum and hydrogen (LaH10) that has shown evidence of being a high-temperature...

always low-spin. Ir(III) and Ir(IV) generally form octahedral complexes. Polyhydride complexes are known for the +5 and +3 oxidation states. One example is...

Iron-based 38 NaFeAs Iron-based 20 HgTlBaCaCuO Compound 164 II H2S Polyhydride 203 (155 GPa) II LaH10 Polyhydride 250 (150 GPa) Yb Element 1.4 (>86 GPa) no...

Michael (1999). "Prediction of the Geometries of Simple Transition Metal Polyhydride Complexes by Symmetry Analysis". J. Am. Chem. Soc. 121 (6): 1348–1358...

hydride was retracted from Nature. CSH is an uncharacterized ternary polyhydride compound of carbon, sulfur and hydrogen with a chemical formula that...

Argon compounds, the chemical compounds that contain the element argon, are rarely encountered due to the inertness of the argon atom. However, compounds...

Michael (1999). "Prediction of the Geometries of Simple Transition Metal Polyhydride Complexes by Symmetry Analysis". Journal of the American Chemical Society...

Michael (1999). "Prediction of the Geometries of Simple Transition Metal Polyhydride Complexes by Symmetry Analysis". J. Am. Chem. Soc. 121 (6): 1348–1358...

of the Scientific Council of IFPEN (from 2007 to 2011). B. Chaudret Polyhydrides and Nanoparticles: A 35 year Trip in Organometallic Chemistry Histoire...

is stable at pressures exceeding 65 GPa. Iron pentahydride FeH5 is a polyhydride, where there is more hydrogen than expected by valence rules. It is stable...

worked on the chemistry of paramagnetic organometallic complexes, metal polyhydride complexes and the dihydrogen ligand, catalytic activation of carbon monoxide...

hydrides include the anions in Mg2FeH6 and Mg2NiH4. Some of these anionic polyhydrides satisfy the 18-electron rule, many do not. Because of their high lattice...

yttrium hydrides are known at standard conditions, YH2 and YH3. YH9, a polyhydride is stable at high pressures, and is a superconductor at temperatures...

always low-spin. Ir(III) and Ir(IV) generally form octahedral complexes. Polyhydride complexes are known for the +5 and +3 oxidation states. One example is...

central atoms. These are very unstable but some have been shown to exist. Polyhydrides or superhydrides are compounds in which the number of hydrogen atoms...

Laura (2007). "A Combined Experimental and Theoretical Study of Uranium Polyhydrides with New Evidence for the Large Complex UH4(H2)6". The Journal of Physical...

in free H2. Some complexes containing multiple hydrogen ligands, i.e. polyhydrides, also exhibit short H−H contacts. It has been suggested that distances...

21°C at a pressure of 1 GPa, which is considerably lower than for other polyhydrides. This has been called "red matter" as it is red under high pressure,...