Lihat sumber Sesium peroksida

{{Chembox
| ImageFile = Berkas:Cs2O2.png
| IUPACName = Sesium peroksida
| Section1 = {{Chembox Identifiers
| CASNo = 12053-70-2
| PubChem =
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| Section2 = {{Chembox Properties
| Cs=2|O=2
| Appearance = Kekuningan<ref name=Volnov>{{cite book|title=Peroxides, Superoxides, and Ozonides of Alkali and Alkaline Earth Metals|author= I. I. Volnov|publisher=Springer|year=2012|page=45|isbn=9781468482522}}</ref>
| Density =
| MeltingPt =
| BoilingPt =
| Solubility =
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| Section3 = {{Chembox Structure
| Coordination =
| CrystalStruct = [[Sistem kristal ortorombik|Ortorombik]]<ref>{{cite journal | last1=Band | first1=A. | last2=Albu-Yaron | first2=A. | last3=Livneh | first3=T. | last4=Cohen | first4=H. | last5=Feldman | first5=Y. | last6=Shimon | first6=L. | last7=Popovitz-Biro | first7=R. | last8=Lyahovitskaya | first8=V. | last9=Tenne | first9=R. | title=Characterization of Oxides of Cesium | journal=The Journal of Physical Chemistry B | publisher=American Chemical Society (ACS) | volume=108 | issue=33 | date=27 Juli 2004 | issn=1520-6106 | doi=10.1021/jp036432o | pages=12360–12367}}</ref>
| MolShape =
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| Section8 = {{Chembox Related
| OtherAnions =
| OtherCations = {{ubl|[[Litium peroksida]]|[[Natrium peroksida]]|[[Kalium peroksida]]|[[Rubidium peroksida]]}}
| OtherFunction = {{ubl|[[Sesium suboksida]]|[[Sesium oksida|Sesium monoksida]]|[[Sesium seskuioksida]]|[[Sesium superoksida]]|[[Sesium ozonida]]}}
| OtherFunction_label = [[Sesium]] [[oksida]]
| OtherCompounds =
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}}

'''Sesium peroksida''' adalah sebuah [[senyawa anorganik]] dari [[sesium]] dan [[oksigen]] dengan [[rumus kimia]] {{chem2|Cs2O2|auto=1}}. Senyawa ini dapat dibentuk dari logam sesium dengan menambahkan jumlah stoikiometri dalam [[Amonia#Sifat pelarut|larutan amonia]], atau mengoksidasi logam sesium padat secara langsung.<ref name=Volnov />

:{{chem2|2 Cs + O2 → Cs2O2}}

Sesium peroksida juga dapat dibentuk melalui dekomposisi termal dari [[sesium superoksida]]:<ref>{{cite journal | last1=Berardinelli | first1=S. P. | last2=Kraus | first2=D. L. | title=Thermal decomposition of the higher oxides of cesium in the temperature range 320-500.deg. | journal=Inorganic Chemistry | publisher=American Chemical Society (ACS) | volume=13 | issue=1 | date=1974-01-01 | issn=0020-1669 | doi=10.1021/ic50131a037 | pages=189–191}}</ref>

:{{chem2|2 CsO2 → Cs2O2 + O2}}

Setelah dipanaskan hingga suhu 650&nbsp;°C, senyawa ini akan terurai menjadi [[sesium monoksida]] dan [[Alotrop oksigen#Oksigen atomik|oksigen atomik]]:<ref>{{cite book | last=Zefirov | first=Nikolaj | title=Chimičeskaja ėnciklopedija : v pjati tomach | publisher=Izdat. | publication-place=Moskva | year=1995 | isbn=5-85270-092-4 | oclc=258155382 | language=bs |page=658}}</ref>

:{{chem2|Cs2O2 → Cs2O + [O]}}

Sesium peroksida menunjukkan getaran [[Spektroskopi Raman|Raman]] pada 743&nbsp;cm<sup>−1</sup>, karena adanya ion [[peroksida]].<ref>{{cite journal | last1=Livneh | first1=Tsachi | last2=Band | first2=Alisa | last3=Tenne | first3=Reshef | title=Raman scattering from the peroxide ion in Cs<sub>2</sub>O<sub>2</sub> | journal=Journal of Raman Spectroscopy | publisher=Wiley | volume=33 | issue=8 | year=2002 | issn=0377-0486 | doi=10.1002/jrs.900 | pages=675–676| bibcode=2002JRSp...33..675L}}</ref> Senyawa ini sering digunakan sebagai pelapis untuk [[fotokatode|fotokatoda]], karena [[fungsi kerja]]nya yang rendah.<ref>{{cite journal | last1=Sun | first1=Yun | last2=Liu | first2=Zhi | last3=Pianetta | first3=Piero | last4=Lee | first4=Dong-Ick | title=Formation of cesium peroxide and cesium superoxide on InP photocathodes activated by cesium and oxygen | journal=Journal of Applied Physics | publisher=AIP Publishing | volume=102 | issue=7 | year=2007 | pages=074908–074908–6 | issn=0021-8979 | doi=10.1063/1.2786882 | bibcode=2007JAP...102g4908S | doi-access=free}}</ref>
==Referensi==
{{reflist}}

{{Senyawa sesium}}

[[Kategori:Peroksida]]
[[Kategori:Senyawa sesium]]


{{Senyawa-anorganik-stub}}