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Sigma-Aldrich

Tin(II) fluoride

99%

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Synonym(s):
Difluorostannylene, Stannous fluoride, Tin bifluoride, Tin difluoride
Empirical Formula (Hill Notation):
F2Sn
CAS Number:
7783-47-3
Molecular Weight:
156.71
EC Number:
231-999-3
MDL number:
MFCD00042540
UNSPSC Code:
12352300
PubChem Substance ID:
24860244
NACRES:
NA.22

Quality Level

200

Assay

99%

reaction suitability

core: tin
reagent type: catalyst

density

4.57 g/mL at 25 °C (lit.)

SMILES string

F[SnH2]F

InChI

1S/2FH.Sn/h2*1H;/q;;+2/p-2

InChI key

ANOBYBYXJXCGBS-UHFFFAOYSA-L

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Application

Tin(II) fluoride (SnF2) can be used:
  • As an inhibitor of Sn4+ in fabrication of formamidinium tin iodide (FASnI3) perovskite solar cells (PSCs) via SnF2–pyrazine complex formation.
  • As a catalyst in glycerol ketalization, Knoevenagel condensation and aldol-type reactions.
  • In the synthesis of α, β-epoxy ketone from α, α-dibromoacetophenone and aliphatic and aromatic aldehyde via oxidative addition of carbon-halogen bonds.
  • In the stereocontrolled [3 + 3] , [3 + 4], [3 + 5] annulations reactions.

Signal Word

Danger

Hazard Statements

H290,H301,H315,H318,H411

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Skin Irrit. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Mingyu Hu et al.
Nature communications, 11(1), 151-151 (2020-01-11)
State-of-the-art halide perovskite solar cells have bandgaps larger than 1.45 eV, which restricts their potential for realizing the Shockley-Queisser limit. Previous search for low-bandgap (1.2 to 1.4 eV) halide perovskites has resulted in several candidates, but all are hybrid organic-inorganic compositions, raising potential concern regarding
Mukaiyama, T.; Yamaguchi, M.; Kato, J.
Synlett, 1505-1505 (1981)
Tin (II) Fluoride
Weigel LO
Encyclopedia of Reagents for Organic Synthesis, Second Edition, 307(12), 828-835 (2001)
Shoda, S.; Mukaiyama, T.
Chemistry Letters (Jpn), 723-723 (1981)
Molander, G. A.; Shubert, D. C.
Journal of the American Chemical Society, 109, 576-576 (1987)
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Articles

Knoevenagel Condensation Reaction

Knoevenagel Condensation is an organic reaction named after Emil Knoevenagel. It is a classic C-C bond formation reaction and a modification of the Aldol Condensation.

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