Evidence map›Paper›PMID 42032876›Full record

ArticleAngewandte Chemie (International ed. in English)2026

1,4-Digermacyclopenta-1,3-diene: Continuous Cyclic σ*-π Delocalization Enables Aromatic Stabilization in a Heavy-Element 4π System.

Daichi Uchida, Hiroko Yamada, Yoshiyuki Mizuhata

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Daichi UchidaInstitute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.ORCID https://orcid.org/0009-0006-7870-7585
Hiroko YamadaInstitute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.ORCID https://orcid.org/0000-0002-2138-5902
Yoshiyuki MizuhataInstitute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, Japan.ORCID https://orcid.org/0000-0001-5301-0024

Funding

JSPS JP18H01963JSPS JP24K01496JSPS JP25H02026JST JPMJFS2123
6 · The paper itself

Abstract

Aromaticity in heavy-element systems can arise from unconventional modes of cyclic electron delocalization that are not accessible in lighter-element frameworks. Herein, we report 1,4-digermacyclopenta-1,3-diene as an unusual aromatic system in which a formally 4π electron framework is stabilized through cooperative σ*-π interactions. X-ray crystallography reveals a nearly planar [Ge

Indexed as

aromaticitycyclic delocalizationgermaniumheavy‐element π systemsσ*–π delocalization

Identifiers

PMID42032876
PMCPMC13245612

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.