Bróimíd airgid

Bróimíd airgid
	;
Substaint cheimiceach	aicme eintiteas ceimiceach
Mais mhóilíneach	185.823 Da
Struchtúr ceimiceach
Foirmle cheimiceach	AgBr
SMILES canónta	Model 2D; Br[Ag]
InChI	Model 3D
Airí
Pointe leáite	432 °C
Fiuchphointe	1,502 °C (a 101.325 kPa)

Salann bog, buíbhán, uisce-dothuaslagtha is ea bróimíd airgid (AgBr) a bhfuil cáil uirthi (maille le hailídí airgid eile) as a híogaireacht neamhghnách i leith an tsolais. Lig an t-airí seo do na hailídí airgid bheith ina mbunús do bhunábhair ghrianghrafadóireachta nua-aimseartha.^[1]

Baintear úsáid as AgBr go forleathan i scannáin ghrianghrafadóireachta. Faightear an salann go nádúrtha mar an mhianra brómairgirít (brómairít)

Imoibrithe

Imoibríonn bróimíd airgid go héasca le leacht amóinia chun coimpléasca éagsiúl d'áimín a ghiniúint :^[2]

AgBr + nNH₃ →Ag(NH₃)₂¹⁺

{AgBr(NH₃)₂}
{AgBr₂(NH₃)₂}¹⁻
{AgBr(NH₃)}
{AgBr₂(NH₃)}¹⁻

Imoibríonn bróimíd airgid le trífheinilfoisfín chun tris(trífheinilfoisfín) a tháirgeadh:^[3]

Airíonna fisiceacha

Struchtúr criostail

Tá struchtúr laitíse aghaidhlárnach ciúbach (alc) cloch shalainn (NaCl) ag AgF, AgCl, agus AgBr, leis an méid seo a leanas paraiméadair laitíse :^[4]

Airíonna hailíde airigid laitíse

Comhdhúil

Criostail

Struchtúr

Laitís, a /Å

AgF

alc

cloch shalainn, NaCl

4.936

AgCl, Clórairgirít

alc

cloch shalainn, NaCl

5.5491

AgBr,

Brómairgirít

alc

cloch shalainn, NaCl

5.7745

*Aonad struchtúir cille*

aghaidhlárnach ciúbach	struchtúr an chlochshalainn

Tagairtí

↑ Greenwood, N.N., Earnshaw, A. (1984). "Chemistry of the Elements": 1185–87. Permagon Press. CS1 maint: Multiple names: authors list (link) Greenwood, N.N., Earnshaw, A. (1984). "{{{title}}}": 1185–87. Permagon Press.
↑ Leden, I., Persson, G. (1961). "{{{title}}}". Acta Chem. Scand. 15: 607–614. doi:10.3891/acta.chem.scand.15-0607.
↑ Engelhardt, LM (1987). "Lewis-Base Adducts of Group-11 Metal(I) Compounds. XXX. 3:1 Complexes of Triphenylphosphine With Silver(I) Halides". Aust. J. Chem. 40 (11): 1873–1880. doi:10.1071/CH9871873.
↑ Glaus, S. (2003). "The band structures of the silver halides AgF, AgCl, and AgBr: A comparative study". Photochem. Photobiol. Sci 2 (4): 398–401. doi:10.1039/b211678b.

[Greenwood-Earnshaw1984-1] Greenwood, N.N., Earnshaw, A. (1984). "Chemistry of the Elements": 1185–87. Permagon Press. CS1 maint: Multiple names: authors list (link) Greenwood, N.N., Earnshaw, A. (1984). "{{{title}}}": 1185–87. Permagon Press.

[Leden1961-2] Leden, I., Persson, G. (1961). "{{{title}}}". Acta Chem. Scand. 15: 607–614. doi:10.3891/acta.chem.scand.15-0607.

[Engelhardt1987-3] Engelhardt, LM (1987). "Lewis-Base Adducts of Group-11 Metal(I) Compounds. XXX. 3:1 Complexes of Triphenylphosphine With Silver(I) Halides". Aust. J. Chem. 40 (11): 1873–1880. doi:10.1071/CH9871873.

[Glaus-Calzaferri2003-4] Glaus, S. (2003). "The band structures of the silver halides AgF, AgCl, and AgBr: A comparative study". Photochem. Photobiol. Sci 2 (4): 398–401. doi:10.1039/b211678b.

[1]

[2]

[3]

[4]