:Caesium cadmium bromide

{{Refimprove|date=April 2019}}

{{chembox

| Watchedfields = changed

| verifiedrevid = 428859122

| Name = Caesium cadmium bromide

| ImageFile = Caesium cadmium bromide crystal.jpg

| ImageName = CsCdBr3

| IUPACName = Caesium cadmium bromide

| OtherNames = {{Unbulleted list

| Caesium tribromocadmate

}}

|Section1={{Chembox Identifiers

| CASNo = 16593-55-8

| CASNo_Ref = {{cascite|correct|CAS}}

| PubChem = 19796927

| StdInChI=1S/3BrH.Cd.Cs/h3*1H;;/q;;;+2;+1/p-3

| StdInChIKey = UWRGVKVZETZALQ-UHFFFAOYSA-K

| SMILES = [Br-].[Br-].[Br-].[Cd+2].[Cs+]

}}

|Section2={{Chembox Properties

| Formula = Cs Cd Br₃

| MolarMass = 485.028 g/mol

| Appearance = white or colourless solid

| MeltingPtC = 450

| MeltingPt_notes =

| Density = 4.53 g/cm³{{cite book|doi=10.17188/1275593|year=2014|last1=Persson|first1=Kristin|title=Materials Data on CsCdBr3 (SG:221) by Materials Project|type=Data Set|publisher=LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)|chapter=36 Materials Science}}

}}

| Section3 = {{Chembox Structure

| Coordination =

| CrystalStruct = cubic

| MolShape =

}}

}}

Caesium cadmium bromide (Cs Cd Br₃) is a synthetic crystalline material. It belongs to the AMX₃ group (where A = alkali metal, M = bivalent metal, X = halogen ion). Unlike most other bromides, CsCdBr₃ is non-hygroscopic,{{cite journal|doi=10.1051/jphyscol:1985722|title=ENERGY TRANSFER IN CsCdBr3 : Nd3+SYSTEM|journal=Le Journal de Physique Colloques|volume=46|pages=C7–113–C7–117|year=1985|last1=Barthem|first1=R. B.|last2=Buisson|first2=R.|last3=Vial|first3=JC.|last4=Chaminade|first4=JP.|url=https://hal.archives-ouvertes.fr/jpa-00224972/file/ajp-jphyscol198546C722.pdf}} giving it applications as an efficient upconversion material in solar cells.{{cite journal|doi=10.1103/PhysRevB.45.5187|title=Dynamics and spectroscopy of infrared-to-visible upconversion in erbium-doped cesium cadmium bromide (CsCdBr3:Er3+)|journal=Physical Review B|volume=45|issue=10|pages=5187–5198|year=1992|last1=Cockroft|first1=Nigel J.|last2=Jones|first2=Glynn D.|last3=Nguyen|first3=Dinh C.|pmid=10000233|bibcode=1992PhRvB..45.5187C}} As a single crystal structure doped with rare-earth ions, it can be also used as active laser medium. It is highly transparent in the visible and infrared regions and can be used as a nonlinear optical crystal.{{cite journal|doi=10.1021/ic025813y|pmid=12513072|title=A Novel Nonlinear Optical Crystal for the IR Region: Noncentrosymmetrically Crystalline CsCdBr3and its Properties|journal=Inorganic Chemistry|volume=42|issue=1|pages=8–10|year=2003|last1=Ren|first1=Peng|last2=Qin|first2=Jingui|last3=Chen|first3=Chuangtian}}

Caesium cadmium bromide with the formula Cs₂CdBr₄ has also been synthesized.{{cite journal|doi=10.1107/S0108768184002275|title=Low-temperature phases in Cs2CdBr4and Cs2HgBr4|journal=Acta Crystallographica Section B|volume=40|issue=4|pages=347–350|year=1984|last1=Altermatt|first1=D.|last2=Arend|first2=H.|last3=Gramlich|first3=V.|last4=Niggli|first4=A.|last5=Petter|first5=W.|bibcode=1984AcCrB..40..347A }}