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2022-04-20Zeitschriftenartikel DOI: 10.1002/anie.202206963
A Planar Five‐Membered Aromatic Ring Stabilized by Only Two π‐Electrons
dc.contributor.authorKysliak, Oleksandr
dc.contributor.authorSchreiner, Simon
dc.contributor.authorGrabicki, Niklas
dc.contributor.authorLiebing, Phil
dc.contributor.authorWeigend, Florian
dc.contributor.authorDumele, Oliver
dc.contributor.authorKretschmer, Robert
dc.date.accessioned2022-11-24T15:20:51Z
dc.date.available2022-11-24T15:20:51Z
dc.date.issued2022-04-20none
dc.date.updated2022-09-21T22:02:33Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/26206
dc.description.abstractMany chemicals known today are partially or fully aromatic, since a ring framework experiences additional stabilization through the delocalization of π‐electrons. While aromatic rings with equal numbers of π‐electrons and ring atoms such as benzene are particularly stable, those with the minimally required two π‐electrons are very rare and yet remain limited to three‐ and four‐membered rings if not stabilized in the coordination sphere of heavy metals. Here we report the facile synthesis of a dipotassium cyclopentagallene, a unique example of a five‐membered aromatic ring stabilized by only two π‐electrons. Single‐crystal X‐ray diffraction revealed a planar Ga5 ring with almost equal gallium–gallium bond lengths, which together with computational and spectroscopic data confirm its aromatic character. Our results prove that aromatic stabilization goes far beyond what has previously been assumed as minimum π‐electron count in a five‐atom ring fragment.eng
dc.description.sponsorshipDeutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
dc.description.sponsorshipVerband der Chemischen Industrie http://dx.doi.org/10.13039/100007215
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY-NC 4.0) Attribution-NonCommercial 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectAromaticityeng
dc.subjectGalliumeng
dc.subjectInorganic Ring Systemseng
dc.subjectNICSeng
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftennone
dc.titleA Planar Five‐Membered Aromatic Ring Stabilized by Only Two π‐Electronsnone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/26206-9
dc.identifier.doi10.1002/anie.202206963none
dc.identifier.doihttp://dx.doi.org/10.18452/25530
dc.type.versionpublishedVersionnone
local.edoc.container-titleAngewandte Chemienone
local.edoc.pages5none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameWiley-VCHnone
local.edoc.container-publisher-placeWeinheimnone
local.edoc.container-volume61none
local.edoc.container-issue31none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumbere202206963none
dc.identifier.eissn1521-3773

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