Kalaj(II) bromid

Kalaj(II) bromid
Drugi nazivi	kalaj dibromid, stano bromid
Identifikacija
CAS registarski broj	10031-24-0
PubChem	66224
ChemSpider	59609
EINECS broj	233-087-0
Jmol-3D slike	Slika 1
SMILES
	Br[Sn]Br
InChI
	InChI=1S/2BrH.Sn/h21H;/q;;+2/p-2 ; Kod: ZSUXOVNWDZTCFN-UHFFFAOYSA-L InChI=1/2BrH.Sn/h21H;/q;;+2/p-2; Kod: ZSUXOVNWDZTCFN-NUQVWONBAM
Svojstva
Molekulska formula	SnBr2
Molarna masa	278.518 g/mol
Agregatno stanje	Žuti prah
Gustina	5.12 g/cm³, čvrsto stanje
Tačka topljenja	215 °C
Tačka ključanja	639 °C
Struktura
Kristalna rešetka/struktura	Srodna sa PbCl2
Opasnost
EU-klasifikacija	Nije na listi
	(šta je ovo?) (verifikuj) ; Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje (25 °C, 100 kPa) materijala
	Infobox references

Kalaj(II) bromid je hemijsko jedinjenje kalaja i broma sa hemijskom formulom SnBr₂. Kalaj je u oksidacionom stanju +2. Stabilnost jedinjenja kalaja u ovom oksidacionom stanju se pripisuje efektu inertnog para.^[4]

Strukture i vezivanje

U gasnoj fazi SnBr₂ ima povijenu konfiguraciju sličnu SnCl₂ u gasnoj fazi. Br-Sn-Br ugao je 95° i dužina Sn-Br veze je 255pm.^[5] Postoje dokazi za se on javlja kao dimer u gasnoj fazi.^[6] Njegova struktura u čvrstom stanju je srodna sa SnCl₂ i PbCl₂. Atomi kalaja imaju pet atoma broma u aproksimativno trigonalno bipiramidalnoj konfiguraciji.^[7]

Priprema

Kalaj(II) bromid se može pripremiti reakcijom metalnog kalaja i HBr. H₂O/HBr se odvajaju destilacijom.^[8]:

Sn + 2HBr→ SnBr₂ + H₂

Reference

↑ Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today 15 (23-24): 1052-7. DOI:10.1016/j.drudis.2010.10.003. PMID 20970519. edit
↑ Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry 4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.
↑ Hettne KM, Williams AJ, van Mulligen EM, Kleinjans J, Tkachenko V, Kors JA. (2010). „Automatic vs. manual curation of a multi-source chemical dictionary: the impact on text mining”. J Cheminform 2 (1): 3. DOI:10.1186/1758-2946-2-3. PMID 20331846. edit
↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd izd.). Oxford: Butterworth-Heinemann. ISBN 0080379419.
↑ J.L Wardell "Tin:Inorganic Chemistry" Encyclopedia of Inorganic Chemistry Ed: R Bruce King John Wiley & Sons (1994) ISBN 0-471-93620-0
↑ K. Hilpert, M. Miller, F. Ramondo (1991). „Thermochemistry of tetrabromoditin and bromoiodotin gaseous”. J. Phys. Chem. 95 (19): 7261–7266. DOI:10.1021/j100172a031.
↑ Abrahams I.; Demetriou D.Z. (2000). „Inert Pair Effects in Tin and Lead Dihalides: Crystal Structure of Tin(II) Bromide”. Journal of Solid State Chemistry 149 (1): 28–32. DOI:10.1006/jssc.1999.8489.
↑ Cotton F. Albert, Wilkinson Geoffrey, Murillo Carlos A, Bochmann, Manfred (1999). Advanced Inorganic Chemistry (6th izd.). New York: Wiley-Interscience. ISBN 0-471-19957-5.

Spoljašnje veze

Portal Hemija

[1] Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today 15 (23-24): 1052-7. DOI:10.1016/j.drudis.2010.10.003. PMID 20970519. edit

[2] Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry 4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.

[3] Hettne KM, Williams AJ, van Mulligen EM, Kleinjans J, Tkachenko V, Kors JA. (2010). „Automatic vs. manual curation of a multi-source chemical dictionary: the impact on text mining”. J Cheminform 2 (1): 3. DOI:10.1186/1758-2946-2-3. PMID 20331846. edit

[Greenwood-4] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd izd.). Oxford: Butterworth-Heinemann. ISBN 0080379419.

[5] J.L Wardell "Tin:Inorganic Chemistry" Encyclopedia of Inorganic Chemistry Ed: R Bruce King John Wiley & Sons (1994) ISBN 0-471-93620-0

[6] K. Hilpert, M. Miller, F. Ramondo (1991). „Thermochemistry of tetrabromoditin and bromoiodotin gaseous”. J. Phys. Chem. 95 (19): 7261–7266. DOI:10.1021/j100172a031.

[7] Abrahams I.; Demetriou D.Z. (2000). „Inert Pair Effects in Tin and Lead Dihalides: Crystal Structure of Tin(II) Bromide”. Journal of Solid State Chemistry 149 (1): 28–32. DOI:10.1006/jssc.1999.8489.

[Cotton-8] Cotton F. Albert, Wilkinson Geoffrey, Murillo Carlos A, Bochmann, Manfred (1999). Advanced Inorganic Chemistry (6th izd.). New York: Wiley-Interscience. ISBN 0-471-19957-5.

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