XANTHONE - (90-47-1)

Einführung

Name: xanthone; 9H-xanthen-9-one; 9-oxo-xanthene
* IUPAC
CAS-Nummer: 90-47-1
Chemische Formel: C13H8O2
Molmasse: 196.20142 g
Aggregatszustand: off-white solid
Massenprozent: C 79.581 %; H 4.1098 %; O 16.309 % 

Einstufung

• organisch • aromatisch • Keton

Verwendung / Funktion

• "In the prep[aratio]n of xanthydrol. Ovicide for codling moth eggs; less effective as larvicide." 1

Physikalische Eigenschaften

Schmelzpunkt:*
174°C 2 = 447.15 K = 345.2°F
173°C 3 = 446.15 K = 343.4°F
Siedepunkt:*
351°C 2 = 624.15 K = 663.8°F
350°C 3 = 623.15 K = 662°F

* - 1 atm pressure

Löslichkeit

qualitativ:
unlöslich:  3
löslich:  • • 3

Kleben

Doppelbindungen: 7
Dreifachbindungen: 0
Sigma Bonds: 25
Pi Bonds: 7
Gesamt: 32
Carboxygruppen: 0
HYDROXYLGRUPPEN: 0
Hybridisation: carbons are sp2; double bonded oxygen is sp2; single bonded oxygen is sp3

Thermochemie

ΔHf° (s): -45.77 kcal/mol = -191.5 kJ/mol 4
The heat of combustion is the amount of heat released when one mole of a substance undergoes combustion according to the general reaction equation:
CxHyOz + 0.25(4x+y-2z) O2 (g) → x CO2 (g) + 0.5y H2O (ℓ)

ΔHcomb° (s): -1450.14040152964 kcal = -6067.45 kJ

Für mehr Informationen

Quellen

(1) - The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals, 13th ed.; Budavari, S.; O'Neil, M.J.; Smith, A.; Heckelman, P. E.; Kinneary, J. F., Eds.; Merck & Co.: Whitehouse Station, NJ, 2001; entry 10119.
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 3-329.
(3) - Shriner, Ralph L., Fuson, Reynold C., and Curtin, David Y. The Systematic Identification of Organic Compounds, 4th ed.; John Wiley & Sons: New York, 1962; p 319.
(4) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2003; p 5-58.
(5) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2003; p 5-58.
(6) - Lide, David R. CRC Handbook of Chemistry and Physics, 84th ed.; CRC Press: Boca Raton, FL, 2003; p 5-58.