Dipotassium cyclooctatetraenide, sometimes abbreviated K2COT, is an organopotassium compound with the formula K2C8H8. It is a brown solid that is used as a precursor to cyclooctatetraenide complexes, such as uranocene (U(C8H8)2). Analogs of K2C8H8 are known with ring substituents, with different alkali metals, and with various complexants.
The reaction entails 2-electron reduction of the polyene and is accompanied by a color change from colorless to brown.[1]
The structure of K2(diglyme)C8H8 has been characterized by X-ray crystallography of the derivatives with diglyme complexed to the potassium cations. The C8H8 unit is planar with an average C-C distance of 1.40 A.[2]
Referencesedit
^A. L Wayda (1990). "Cyclooctatetraene Lanthanide Complexes. Lu(C8 H8 )Cl(THF) and Lu(C8 H8 )[o -C6 H4 CH2 N(CH3 )2 ](THF)". Cyclooctatetraene Lanthanide Complexes. Lu(C8H8Cl(thf) and Lu(C8H8)[o-C6H4CH2N(CH3)2(thf). Inorganic Syntheses. Vol. 27. pp. 150–154. doi:10.1002/9780470132586.ch28. ISBN9780470132586.
^J. H. Noordik, T. E. M. van den Hark, J. J. Mooij and A. A. K. Klaassen (1974). "Dipotassium(I) cyclooctatetraenide-1-methoxy-2-(2-methoxyethoxy)ethane". Acta Crystallogr B. 30 (3): 833–835. doi:10.1107/S0567740874003840.{{cite journal}}: CS1 maint: multiple names: authors list (link)
January 01, 1970
dipotassium, cyclooctatetraenide, sometimes, abbreviated, k2cot, organopotassium, compound, with, formula, k2c8h8, brown, solid, that, used, precursor, cyclooctatetraenide, complexes, such, uranocene, c8h8, analogs, k2c8h8, known, with, ring, substituents, wit. Dipotassium cyclooctatetraenide sometimes abbreviated K2COT is an organopotassium compound with the formula K2C8H8 It is a brown solid that is used as a precursor to cyclooctatetraenide complexes such as uranocene U C8H8 2 Analogs of K2C8H8 are known with ring substituents with different alkali metals and with various complexants Dipotassium cyclooctatetraenide Names Preferred IUPAC name Dipotassium cycloocatetraenediide Identifiers CAS Number 59391 85 4 3D model JSmol Interactive image ChemSpider 57575621 PubChem CID 12716830 InChI InChI 1S C8H8 2K c1 2 4 6 8 7 5 3 1 h1 8H q 2 2 1 b2 1 5 3 8 6 Key JEUFATMWOKTCQC YGFQESQOSA NInChI 1 C8H8 2K c1 2 4 6 8 7 5 3 1 h1 8H q 2 2 1 b2 1 5 3 8 6 Key JEUFATMWOKTCQC YGFQESQOBL SMILES K c1 c cH c c cH c c1 K Properties Chemical formula C8H8K2 Appearance beige solid Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references Ball and stick model of COT2 Preparation and structure editPotassium cyclooctatetraenide is formed by the reaction of cyclooctatetraene with potassium metal 2 K C8H8 K2C8H8 The reaction entails 2 electron reduction of the polyene and is accompanied by a color change from colorless to brown 1 The structure of K2 diglyme C8H8 has been characterized by X ray crystallography of the derivatives with diglyme complexed to the potassium cations The C8H8 unit is planar with an average C C distance of 1 40 A 2 References edit A L Wayda 1990 Cyclooctatetraene Lanthanide Complexes Lu C8 H8 Cl THF and Lu C8 H8 o C6 H4 CH2 N CH3 2 THF Cyclooctatetraene Lanthanide Complexes Lu C8H8Cl thf and Lu C8H8 o C6H4CH2N CH3 2 thf Inorganic Syntheses Vol 27 pp 150 154 doi 10 1002 9780470132586 ch28 ISBN 9780470132586 J H Noordik T E M van den Hark J J Mooij and A A K Klaassen 1974 Dipotassium I cyclooctatetraenide 1 methoxy 2 2 methoxyethoxy ethane Acta Crystallogr B 30 3 833 835 doi 10 1107 S0567740874003840 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link Retrieved from https en wikipedia org w index php title Dipotassium cyclooctatetraenide amp oldid 1148604246, wikipedia, wiki, book, books, library,
