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[cuir in eagar | athraigh foinse]
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−
- {AgBr(NH3)2}
Imoibríonn bróimíd airgid le trífheinilfoisfín chun tris(trífheinilfoisfín) a tháirgeadh:[3]
Airíonna fisiceacha[cuir in eagar | athraigh foinse]
Struchtúr criostail[cuir in eagar | athraigh foinse]
Tá struchtúr laitíse aghaidhlárnach ciúbach (alc) cloch shalainn (NaCl) ag AgF, AgCl, agus AgBr, leis an méid seo a leanas paraiméadair laitíse :[4]
| 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 | ||||
| |||||||
Tagairtí[cuir in eagar | athraigh foinse]
- ↑ 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:.
- ↑ 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:.
- ↑ 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:.