Tropylium tetrafluoroborate
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Names | |||
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Preferred IUPAC name Cycloheptatrienylium tetrafluoroboranuide | |||
Other names Cycloheptatrienyl tetrafluoroborate | |||
Identifiers | |||
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.043.816 ![]() | ||
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PubChem CID |
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CompTox Dashboard (EPA) |
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InChI
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Properties | |||
Chemical formula | [C7H7]+[BF4]− | ||
Molar mass | 177.94 g·mol−1 | ||
Appearance | white solid | ||
Melting point | 200 °C (392 °F; 473 K) decomposition | ||
Hazards | |||
GHS labelling: | |||
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Danger | |||
Hazard statements | H314 | ||
Precautionary statements | P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501 | ||
Related compounds | |||
Other anions | Tetrafluoroborate | ||
Other cations | Tropylium | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references |
Chemical compound
Tropylium tetrafluoroborate is an organic compound with the formula [C7H7]+[BF4]−. Containing the tropylium cation and the non-coordinating tetrafluoroborate counteranion, tropylium tetrafluoroborate is a rare example of a readily isolable carbocation. It is a white solid.[1]
This compound may be prepared by the reaction of cycloheptatriene with phosphorus pentachloride, followed by tetrafluoroboric acid.[1][2]
See also
- Triphenylmethyl chloride, also known as trityl chloride.
References
- ^ a b Kenneth Conrow (1963). "Tropylium Tetrafluoroborate". Org. Synth. 43: 101. doi:10.15227/orgsyn.043.0101.
- ^ Kane, John L.; Danheiser, Rick L. (2001). "Tropylium Tetrafluoroborate". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rt429. ISBN 0-471-93623-5.
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Salts and covalent derivatives of the tetrafluoroborate ion
HBF4 | He | ||||||||||||||||||||
LiBF4 | Be | B | C7H7BF4 [Et3O]BF4 [Me3O]BF4 (FTEDA)BF4 | NOBF4 NO2BF4 NH4BF4 | O | F | Ne | ||||||||||||||
NaBF4 | Mg(BF4)2 | Al | Si | P | S | Cl | Ar | ||||||||||||||
KBF4 | Ca(BF4)2 | Sc | Ti | V | [Cr(MeCN)6](BF4)3 [Cr(MeCN)4](BF4)2 | Mn(BF4)2 | Fe(BF4)2 FeO(BF4)2 [FeCp2]BF4 | Co(BF4)2 | Ni(BF4)2 [Ni(MeCN)6](BF4)2 | Cu(BF4)2 | Zn(BF4)2 | Ga | Ge | As | Se | Br | Kr | ||||
RbBF4 | Sr(BF4)2 | Y | Zr | Nb | [Mo2(MeCN)8](BF4)4 [Mo2(MeCN)10](BF4)4 | [Tc2(MeCN)10](BF4)4 | [Ru(MeCN)6](BF4)2 | [Rh(MeCN)6](BF4)3 [Rh2(MeCN)10](BF4)4 | [Pd(MeCN)4](BF4)2 | AgBF4 | Cd(BF4)2 | In(BF4)3 | Sn(BF4)2 | Sb | Te | (IPy2)BF4 | Xe | ||||
CsBF4 | Ba(BF4)2 | * | Lu | Hf | Ta | W | Re | Os | Ir | Pt(BF4)2 | Au | Hg(BF4)2 | TlBF4 | Pb(BF4)2 | Bi | Po | At | Rn | |||
Fr | Ra | ** | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |||
* | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | |||||||
** | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No |