Thulium Monoselenide

Thulium monoselenide
Identifiers
CAS Number	12039-53-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	74779;
EC Number	234-896-1;
PubChem CID	82871;
	InChI InChI=1S/Se.Tm Key: GFKHZESYKBWHEV-UHFFFAOYSA-N;
	SMILES [Se]=[Tm];
Properties
Chemical formula	TmSe
Molar mass	247.89
Density	9.1 g/cm3
Melting point	2,060 °C (3,740 °F; 2,330 K)
Related compounds
Other anions	TmS; TmTe
Other cations	ErSe; YbSe
Related compounds	Tm2Se3
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Thulium monoselenide is a mixed valence^[1] compound of selenium and thulium with the chemical formula TmSe.

Preparation

Thulium monoselenide can be prepared by directly reacting thulium and selenium:^[2]

Tm + Se → TmSe

Properties

Thulium monoselenide forms reddish-brown cubic crystals,^[2] space group Fm3m, unit cell parameters a = 0.5640 nm, Z = 4, and a structure similar to that of sodium chloride.^[3]^[4]^[2]

The compound melts congruently at 2060 °C, and at 1100 °C and 1730 °C, phase transitions occur in the compound. The Néel temperature of thulium monoselenide is 1.85–2.8 K.^[2]

References

↑ Kaindl, G.; Brewer, W. D.; Kalkowski, G.; Holtzberg, F. (1983-11-28). "$M$-Edge X-Ray Absorption Spectroscopy: A New Tool for Dilute Mixed-Valent Materials". Physical Review Letters 51 (22): 2056–2059. doi:10.1103/PhysRevLett.51.2056. https://link.aps.org/doi/10.1103/PhysRevLett.51.2056.
↑ ^2.0 ^2.1 ^2.2 ^2.3 Bucher, E.; Andres, K.; di Salvo, F. J.; Maita, J. P.; Gossard, A. C.; Cooper, A. S.; Hull, G. W. (1975-01-01). "Magnetic and some thermal properties of chalcogenides of Pr and Tm and a few other rare earths". Physical Review B 11 (1): 500–513. doi:10.1103/PhysRevB.11.500. Bibcode: 1975PhRvB..11..500B. https://link.aps.org/doi/10.1103/PhysRevB.11.500.
↑ Predel, B. (1998), "Se-Tm (Selenium-Thulium)" (in en), Pu-Re – Zn-Zr, Landolt-Börnstein - Group IV Physical Chemistry (Berlin/Heidelberg: Springer-Verlag) 5 J: pp. 1–2, doi:10.1007/10551312_2721, ISBN 3-540-61742-6, https://dx.doi.org/10.1007/10551312_2721, retrieved 2024-01-22
↑ Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 3,2. Moskva: Mašinostroenie. 2001. ISBN 978-5-217-02932-7.

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[1] Kaindl, G.; Brewer, W. D.; Kalkowski, G.; Holtzberg, F. (1983-11-28). "$M$-Edge X-Ray Absorption Spectroscopy: A New Tool for Dilute Mixed-Valent Materials". Physical Review Letters 51 (22): 2056–2059. doi:10.1103/PhysRevLett.51.2056. https://link.aps.org/doi/10.1103/PhysRevLett.51.2056.

[Bucher-2] 2.0 ^2.1 ^2.2 ^2.3 Bucher, E.; Andres, K.; di Salvo, F. J.; Maita, J. P.; Gossard, A. C.; Cooper, A. S.; Hull, G. W. (1975-01-01). "Magnetic and some thermal properties of chalcogenides of Pr and Tm and a few other rare earths". Physical Review B 11 (1): 500–513. doi:10.1103/PhysRevB.11.500. Bibcode: 1975PhRvB..11..500B. https://link.aps.org/doi/10.1103/PhysRevB.11.500.

[3] Predel, B. (1998), "Se-Tm (Selenium-Thulium)" (in en), Pu-Re – Zn-Zr, Landolt-Börnstein - Group IV Physical Chemistry (Berlin/Heidelberg: Springer-Verlag) 5 J: pp. 1–2, doi:10.1007/10551312_2721, ISBN 3-540-61742-6, https://dx.doi.org/10.1007/10551312_2721, retrieved 2024-01-22

[4] Diagrammy sostojanija dvojnych metalličeskich sistem: spravočnik v trech tomach. 3,2. Moskva: Mašinostroenie. 2001. ISBN 978-5-217-02932-7.

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Identifiers
CAS Number	12039-53-1^Y
3D model (JSmol)	Interactive image
ChemSpider	74779
EC Number	234-896-1
PubChem CID	82871
InChI InChI=1S/Se.Tm Key: GFKHZESYKBWHEV-UHFFFAOYSA-N
SMILES [Se]=[Tm]
Properties
Chemical formula	TmSe
Molar mass	247.89
Density	9.1 g/cm³
Melting point	2,060 °C (3,740 °F; 2,330 K)
Related compounds
Other anions	TmS TmTe
Other cations	ErSe YbSe
Related compounds	Tm₂Se₃
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references