Revision as of 16:31, 30 May 2011 editJynto (talk | contribs)Extended confirmed users3,201 edits Removing redundant category← Previous edit |
Latest revision as of 18:38, 12 June 2023 edit undoScyrme (talk | contribs)Extended confirmed users19,963 edits GHS omission rule, heading |
(25 intermediate revisions by 19 users not shown) |
Line 1: |
Line 1: |
|
{{chembox |
|
{{chembox |
|
|
| Verifiedfields = changed |
|
| verifiedrevid = 376463673 |
|
| verifiedrevid = 431675968 |
|
| Name = Manganese(II) diselenide |
|
| Name = Manganese(II) diselenide |
|
| ImageFile = |
|
| ImageFile = |
Line 7: |
Line 8: |
|
| OtherNames = |
|
| OtherNames = |
|
| Section1 = {{Chembox Identifiers |
|
| Section1 = {{Chembox Identifiers |
|
|
| CASNo_Ref = {{cascite|correct|CAS}} |
|
| CASNo = 12299-98-8 |
|
| CASNo = 12299-98-8 |
|
| CASNo_Comment = or 524744-79-4 }} |
|
|
|
| EC_number = 235-569-6 |
|
|
| UNII_Ref = {{fdacite|correct|FDA}} |
|
|
| UNII = VJ084QU1P0 |
|
|
| PubChem = 83014 |
|
|
| InChI = 1S/Mn.2Se |
|
|
| InChIKey = KDAKOPXAEMJUSU-UHFFFAOYSA-N |
|
|
| SMILES = (=)= |
|
|
}} |
|
| Section2 = {{Chembox Properties |
|
| Section2 = {{Chembox Properties |
|
| Formula = MnSe<sub>2</sub> |
|
| Mn=1 | Se=2 |
|
| MolarMass = 212.86 g/mol |
|
|
| Appearance = grey, odorless powder |
|
| Appearance = grey, odorless powder |
|
| Density = 5.55 g/cm<sup>3</sup>, solid |
|
| Density = 5.55 g/cm<sup>3</sup> |
|
| Solubility = insoluble |
|
| Solubility = insoluble |
|
| MeltingPt = |
|
| MeltingPt = |
Line 19: |
Line 27: |
|
}} |
|
}} |
|
| Section7 = {{Chembox Hazards |
|
| Section7 = {{Chembox Hazards |
|
|
| GHSPictograms = {{GHS06}}{{GHS08}}{{GHS09}} |
|
| EUClass = not listed |
|
|
|
| GHSSignalWord = Danger |
|
|
| HPhrases = {{H-phrases|301|331|373|410}} |
|
|
| PPhrases = {{P-phrases|}} |
|
}} |
|
}} |
|
}} |
|
}} |
|
|
|
|
|
'''Manganese(II) diselenide''' is the ] with the formula MnSe<sub>2</sub>. This rarely encountered solid is structurally similar to that of ] (FeS<sub>2</sub>). Analogous to the description of iron pyrite, manganese diselenide is sometimes viewed as being composed of Mn<sup>2+</sup> and Se<sub>2</sub><sup>2-</sup> ions, although being a ], MnSe<sub>2</sub> is not appropriately described in formal oxidation states.<ref>"The Mn-Se (Manganese-selenium) System" Journal of Phase Equilibria , Volume 19, Number 6 , 12/1998 , pp.588-590, M. E. Schlesinger , </ref><ref>The Crystal Structure of Manganese Diselenide and Manganese Ditelluride , Norman Elliott , J. Am. Chem. Soc., 1937, 59 (10) , pp 1958–1962 , </ref> |
|
'''Manganese(II) diselenide''' is the ] with the formula MnSe<sub>2</sub>. This rarely encountered solid is structurally similar to that of ] (FeS<sub>2</sub>). Analogous to the description of iron pyrite, manganese diselenide is sometimes viewed as being composed of Mn<sup>2+</sup> and Se<sub>2</sub><sup>2−</sup> ions, although being a ], MnSe<sub>2</sub> is not appropriately described in formal oxidation states.<ref>"The Mn–Se (Manganese–selenium) System" Journal of Phase Equilibria, Volume 19, Number 6, 12/1998, pp.588-590, M. E. Schlesinger ]</ref><ref>The Crystal Structure of Manganese Diselenide and Manganese Ditelluride, Norman Elliott, J. Am. Chem. Soc., 1937, 59 (10), pp 1958–1962 ]</ref> |
|
|
|
|
|
== Spectroscopy == |
|
|
The high‐resolution Mn 2p spectra of the MnSe<sub>2</sub> has two distinct peaks at 642.2 and 653.9 ]s correspond to the Mn 2p3/2 and Mn 2p1/2 spin–orbit components, respectively. The energy difference (Δ 2p) of 11.7 eV confirms the presence of Mn<sup>4+</sup> ions in the sample. A good correlation was observed with the literature value for the Mn<sup>4+</sup> state.<ref>{{cite journal |doi= 10.1002/aenm.201301960 |title= Direct Growth of Flower-Like δ-MnO2on Three-Dimensional Graphene for High-Performance Rechargeable Li-O2Batteries |year= 2014 |last1= Liu |first1= Shuangyu |last2= Zhu |first2= Yunguang |last3= Xie |first3= Jian |last4= Huo |first4= Ying |last5= Yang |first5= Hui Ying |last6= Zhu |first6= Tiejun |last7= Cao |first7= Gaoshao |last8= Zhao |first8= Xinbing |last9= Zhang |first9= Shichao |journal= Advanced Energy Materials |volume= 4 |issue= 9 }}</ref> No peaks for Mn<sup>2+</sup> ions were observed at 640–641 eV, which confirmed the formation of only the Mn<sup>4+</sup> oxidation state with a d<sup>3</sup> electronic configuration. The Se 3d spectra were deconvoluted into two well‐defined peaks (3d5/2 and 3d3/2) at a binding energy of 54.46 and 55.31 eV, respectively. These two peaks confirmed the presence of Se<sup>2−</sup> ions in MnSe<sub>2</sub>.<ref>{{cite journal |doi=10.1002/ente.201700097 |title=Hybrid Reduced Graphene Oxide/Manganese Diselenide Cubes: A New Electrode Material for Supercapacitors |year=2017 |last1=Balamuralitharan |first1=B. |last2=Karthick |first2=S. N. |last3=Balasingam |first3=Suresh Kannan |last4=Hemalatha |first4=K. V. |last5=Selvam |first5=Samayanan |last6=Raj |first6=J. Anandha |last7=Prabakar |first7=Kandasamy |last8=Jun |first8=Yongseok |last9=Kim |first9=Hee-Je |journal=Energy Technology |volume=5 |issue=11 |pages=1953–1962 }}</ref> |
|
|
|
|
|
==References== |
|
==References== |
Line 29: |
Line 43: |
|
|
|
|
|
{{Manganese compounds}} |
|
{{Manganese compounds}} |
|
|
{{Selenides}} |
|
|
|
|
|
] |
|
] |
|
] |
|
] |
|
] |
|
] |
|
|
|
|
|
|
|
|
{{inorganic-compound-stub}} |
|
{{inorganic-compound-stub}} |