Lanthanum decahydride

Lanthanum decahydride  Identifiers

CAS Number

* 1130489-79-0[1]

3D model (JSmol)

* Interactive image

InChI

* InChI=1S/La.10H

Key: WKJDXOLLSPZSBN-UHFFFAOYSA-N

SMILES

* [LaH10]

Properties

Chemical formula

| H10La
Molar mass | 148.985 g·mol−1
Structure[2]

Crystal structure

| Cubic

Space group

| Fm3m

Lattice constant

a = 5.1019(5) Å

at 150 GPa

Lattice volume (V)

| 132.80(4) Å3

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Lanthanum decahydride is a polyhydride or superhydride compound of lanthanum and hydrogen (LaH10) that has shown evidence of being a high-temperature superconductor. It has a superconducting transition temperature TC ~ 250 K (−23 °C; −10 °F) at a pressure of 150 gigapascals (GPa), and its synthesis required pressures above ~160 GPa.[2][3]

## Synopsis

The compound exhibits a Meissner effect below the superconducting transition temperature.[4] A cubic form can be synthesized at 1,000 K (730 °C; 1,340 °F),[2] and a hexagonal crystal structure can be formed at room temperature.[5]

The cubic form has each lanthanum atom surrounded by 32 hydrogen atoms, which form the vertices of an 18 faced shape called a chamfered cube.[6]

A similar compound lanthanum boron octahydride was computationally predicted to be a superconductor at 126 K with a pressure of 50 GPa.[7]

## References

1. ↑ "Lanthanum decahydride". https://www.acs.org/content/acs/en/molecule-of-the-week/archive/l/lanthanum-decahydride.html.
2. ↑ 2.0 2.1 2.2 Drozdov, A. P.; Kong, P. P.; Minkov, V. S.; Besedin, S. P.; Kuzovnikov, M. A.; Mozaffari, S.; Balicas, L.; Balakirev, F. F. et al. (2019). "Superconductivity at 250 K in lanthanum hydride under high pressures". Nature 569 (7757): 528–531. doi:10.1038/s41586-019-1201-8. PMID 31118520. Bibcode: 2019Natur.569..528D.
3. ↑ M. Kostrzewa; K. M. Szczęśniak; A. P. Durajski; R. Szczęśniak (31 January 2020). "From LaH10 to room–temperature superconductors". Scientific Reports 10 (1): 1592. doi:10.1038/s41598-020-58065-9. PMID 32005852. Bibcode: 2020NatSR..10.1592K.
4. ↑ Eremets, M. I.; Minkov, V. S.; Drozdov, A. P.; Kong, P. P.; Ksenofontov, V.; Shylin, S. I.; Bud'ko, S. L.; Prozorov, R. et al. (10 January 2022). "High‑Temperature Superconductivity in Hydrides: Experimental Evidence and Details". Journal of Superconductivity and Novel Magnetism 35 (4): 965–977. doi:10.1007/s10948-022-06148-1.
5. ↑ Geballe, Zachary M.; Liu, Hanyu; Mishra, Ajay K.; Ahart, Muhtar; Somayazulu, Maddury; Meng, Yue; Baldini, Maria; Hemley, Russell J. (15 January 2018). "Synthesis and Stability of Lanthanum Superhydrides". Angewandte Chemie International Edition 57 (3): 688–692. doi:10.1002/anie.201709970. PMID 29193506.
6. ↑ "NNNS chemistry blog: Lanthanum decahydride". http://chem.vander-lingen.nl/articles/Lanthanum_decahydride/id/894/itemid/895.
7. ↑ Di Cataldo, Simone; Heil, Christoph; von der Linden, Wolfgang; Boeri, Lilia (2021-07-29). "BH8: Towards high-Tc low-pressure superconductivity in ternary superhydrides". Physical Review B 104 (2): L020511. doi:10.1103/PhysRevB.104.L020511. Bibcode: 2021PhRvB.104b0511D.

* v
* t
* e

Lanthanum compounds

* LaB6
* LaBr3
* LaC2
* LaCl3
* La2(CO3)3
* LaH10
* LaF3
* La2O3
* La(OH)3

* v
* t
* e

Binary compounds of hydrogen

Alkali metal (Group 1) hydrides|

* LiH
* NaH
* KH
* RbH
* CsH

Lithium hydride, LiH
ionic metal hydride

Beryllium hydride
Left (gas phase): BeH2
covalent metal hydride
Right: (BeH2)n (solid phase)
polymeric metal hydride

Borane and diborane
Left: BH3 (special conditions), covalent metalloid hydride
Right: B2H6 (standard conditions), dimeric metalloid hydride

Methane, CH4
covalent nonmetal hydride

Ammonia, NH3
covalent nonmetal hydride

Water, H2O
covalent nonmetal hydride

Hydrogen fluoride, HF
covalent nonmetal hydride

Alkaline (Group 2) earth hydrides|

| Monohydrides|

* BeH
* MgH
* CaH
* SrH
* BaH

|

Dihydrides|

* BeH2
* MgH2
* CaH2
* SrH2
* BaH2

|

Group 13 hydrides|

| Boranes|

* BH3
* B2H6
* B2H2
* B2H4
* B4H10
* B5H9
* B5H11
* B6H10
* B6H12
* B10H14
* B18H22

|

Alanes|

* AlH3
* Al2H6

|

Gallanes|

* GaH3
* Ga2H6

|

Indiganes|

* InH3
* In2H6

|

Thallanes|

* TlH3
* Tl2H6

|

Group 14 hydrides|

| Linear alkanes|

* CH4
* C2H6
* C3H8
* C4H10
* C5H12
* C6H14
* C7H16
* C8H18
* C9H20
* C10H22
* more...

|

Linear alkenes|

* C2H4
* C3H6
* C4H8
* C5H10
* C6H12
* C7H14
* C8H16
* C9H18
* C10H20
* more...

|

Linear alkynes|

* C2H2
* C3H4
* C4H6
* C5H8
* C6H10
* C7H12
* C8H14
* C9H16
* C10H18
* more...

|

Silanes|

* SiH4
* Si2H6
* Si3H8
* Si4H10
* Si5H12
* Si6H14
* Si7H16
* Si8H18
* Si9H20
* Si10H22
* more...

|

Silenes|

* Si2H4

|

Silynes|

* Si2H2
* SiH

|

Germanes|

* GeH4
* Ge2H6
* Ge3H8
* Ge4H10
* Ge5H12

|

Stannanes|

* SnH4
* Sn2H6

|

Plumbanes|

* PbH4

|

* CH
* CH2
* CH3
* C2H
* Cycloalkanes
* Cycloalkenes
* Annulenes
* Many more

Pnictogen (Group 15) hydrides|

| Azanes|

* NH3
* N2H4
* N3H5
* N4H6
* N5H7
* N6H8
* N7H9
* N8H10
* N9H11
* N10H12
* more...

|

Azenes|

* N2H2
* N3H3
* N4H4

|

Phosphanes|

* PH3
* P2H4
* P3H5
* P4H6
* P5H7
* P6H8
* P7H9
* P8H10
* P9H11
* P10H12
* more...

|

Phosphenes|

* P2H2
* P3H3
* P4H4

|

Arsanes|

* AsH3
* As2H4

|

Stibanes|

* SbH3

|

Bismuthanes|

* BiH3

|

* HN3
* NH
* radical

Hydrogen chalcogenides (Group 16 hydrides)|

| Polyoxidanes|

* H2O
* H2O2
* H2O3
* H2O4
* H2O5
* H2O6
* H2O7
* H2O8
* H2O9
* H2O10
* more...

|

Polysulfanes|

* H2S
* H2S2
* H2S3
* H2S4
* H2S5
* H2S6
* H2S7
* H2S8
* H2S9
* H2S10
* more...

|

Selanes|

* H2Se
* H2Se2

|

Tellanes|

* H2Te
* H2Te2

|

Polanes|

* PoH2

|

* HO
* HO2
* HO3
* H2O+–O–
* H2S=S
* (HS)2S+–S–
* HS
* HDO
* D2O
* T2O

Hydrogen halides (Group 17 hydrides)|

* HF
* HCl
* HBr
* HI
* HAt

Transition metal hydrides|

* ScH2
* YH2
* YH3
* TiH2
* ZrH2
* HfH2
* VH
* VH2
* NbH
* NbH2
* TaH
* CrH
* CrH2
* CrHx
* NiH
* PdHx (x < 1)
* FeH
* FeH2
* FeH5
* CuH
* ZnH2
* CdH2
* HgH2

Lanthanide hydrides|

* LaH2
* LaH3
* LaH10
* CeH2
* CeH3
* PrH2
* PrH3
* NdH2
* NdH3
* SmH2
* SmH3
* EuH2
* GdH2
* GdH3
* TbH2
* TbH3
* DyH2
* DyH3
* HoH2
* HoH3
* ErH2
* ErH3
* TmH2
* TmH3
* YbH2
* YbH2.5
* LuH2
* LuH3

Actinide hydrides|

* AcH2
* ThH2
* Th4H15
* PaH3
* UH3
* NpH2
* NpH3
* PuH2
* PuH3
* AmH2
* AmH3
* CmH2

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Lanthanum decahydride. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Lanthanum_decahydride&oldid=2600747"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template