2002
DOI: 10.1070/rc2002v071n11abeh000729
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Non-classical structures of organic compounds: unusual stereochemistry and hypercoordination

Abstract: Non-classical structures of organic compounds are Non-classical structures of organic compounds are defined as molecules containing non-tetrahedral tetracoordinate defined as molecules containing non-tetrahedral tetracoordinate and/or hypercoordinate carbon atoms. The evolution of the views and/or hypercoordinate carbon atoms. The evolution of the views on this subject is considered and the accumulated theoretical and on this subject is considered and the accumulated theoretical and experimental data on the st… Show more

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Cited by 110 publications
(111 citation statements)
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“…5 Immediately, a huge set of molecules containing a carbon surrounded by more than four ligands (hypercarbons) were proposed on paper, but were also synthesized and characterized. [6][7][8][9] The fascinating chemistry of hypercarbons is summarized in Olah's Nobel lecture.…”
Section: Introductionmentioning
confidence: 99%
“…5 Immediately, a huge set of molecules containing a carbon surrounded by more than four ligands (hypercarbons) were proposed on paper, but were also synthesized and characterized. [6][7][8][9] The fascinating chemistry of hypercarbons is summarized in Olah's Nobel lecture.…”
Section: Introductionmentioning
confidence: 99%
“…[18] This transition structure boasts an unusual ''protonated ethylene'' substructure with four-coordinate ''umbrella'' carbon atoms, locally like 9. [19] Figure 11. Relative energies (kcal/mol, in bold) of tricyclic models for monohydropentalenes 3 and 4; selected distances are shown in Å Figure 12.…”
Section: Cyclic Systemsmentioning
confidence: 97%
“…[3][4][5][6][7][8][9][10][11][12] This mini review will therefore focus mainly on results from stereochemical investigations obtained during the last two decades.…”
Section: ðIþmentioning
confidence: 99%