Ciklopropen Literatura | Spoljašnje veze | Navigacijski meni2781-85-3123173109788cyclopropeneSlika...
Cikloalkeni
(šta je ovo?)standardno stanje (25 °C, 100 kPa)organsko jedinjenjeformulomcikloalkentrougaonuciklopropana|dvostruke vezejednostrukom vezomp karakterhibridizaciju
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Ciklopropen
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| Ciklopropen | |||
|---|---|---|---|
 | |||
 |  | ||
Naziv po klasifikaciji | Ciklopropen[1] | ||
| Identifikacija | |||
CAS registarski broj | 2781-85-3  Y | ||
PubChem[2][3] | 123173 | ||
ChemSpider[4] | 109788 Y | ||
MeSH | |||
Jmol-3D slike | Slika 1 | ||
| |||
| |||
| Svojstva | |||
Molekulska formula | C3H4 | ||
Molarna masa | 40.06 g mol−1 | ||
Tačka ključanja | -36 °C, 237 K, -33 °F | ||
| Termohemija | |||
Std entalpija sagorevanja ΔcH | -2032--2026 kJ mol-1 | ||
Specifični toplotni kapacitet, C | 51.9-53.9 J K-1 mol-1 | ||
Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje (25 °C, 100 kPa) materijala | |||
Infobox references | |||
Ciklopropen je organsko jedinjenje sa formulom C3H4. On je najjednostavniji cikloalken. I ima trougaonu strukturu. Njegov prsten je veoma napregnut, iz kog razloga se ciklopropen teško priprema.[5] Poput ciklopropana, ugljenični prsten ciklopropena je planaran. Umanjena dužina |dvostruke veze u poređenju sa jednostrukom vezom uzrokuje umanjenje ugla nasuprot dvostruke veze do 51°[6]. Kao kod ciklopropana, ugljenik–ugljenik veze prstena imaju povećan p karakter: alkenski ugljenici koriste sp2.68hibridizaciju za prsten.[7]
Literatura |
↑ "cyclopropene - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 27. 3. 2005.. Identification and Related Records. http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=123173&loc=ec_rcs. pristupljeno 9. 10. 2011..
↑ 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. PMID 20970519. doi:10.1016/j.drudis.2010.10.003.
↑ 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. PMID 20331846. doi:10.1186/1758-2946-2-3.
↑ Carter, F. L.; Frampton, V. L. (1964). "Review of the Chemistry of Cyclopropene Compounds". Chemical Reviews 64: 497–525. doi:10.1021/cr60231a001.
↑ Staley, S. W.; Norden, T. D.; Su, C.-F.; Rall, M.; Harmony, M. D. (1987). "Structure of 3-cyanocyclopropene by microwave spectroscopy and ab initio molecular orbital calculations. Evidence for substituent-ring double bond interactions". J. Am. Chem. Soc. 109 (10): 2880–2884. doi:10.1021/ja00244a004.
↑ Allen, F. H. (1982). "The geometry of small rings: Molecular geometry of cyclopropene and its derivatives". Tetrahedron 38 (5): 645–655. doi:10.1016/0040-4020(82)80206-8.
Spoljašnje veze |
- Sinteza ciklopropena
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Kategorija:
- Cikloalkeni
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