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Self-association of pyramidane: unusual consequences of its high basicity

Tatyana N Gribanova 1
Tatyana N Gribanova
, 
Ruslan Mikhailovich Minyaev 1
Ruslan Mikhailovich Minyaev
, 
10.71267/mencom.8074
Published 23 September 2026 , received 17 April 2026
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Gribanova T. N., Minyaev R. M., Minkin V. I. Self-association of pyramidane: unusual consequences of its high basicity // Mendeleev Communications. 2026.
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Gribanova T. N., Minyaev R. M., Minkin V. I. Self-association of pyramidane: unusual consequences of its high basicity // Mendeleev Communications. 2026.
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TY - JOUR
DO - 10.71267/mencom.8074
UR - https://mendcomm.colab.ws/publications/10.71267/mencom.8074
TI - Self-association of pyramidane: unusual consequences of its high basicity
T2 - Mendeleev Communications
AU - Gribanova, Tatyana N
AU - Minyaev, Ruslan Mikhailovich
AU - Minkin, Vladimir Isaakovich
PY - 2026
DA - 2026/09/23
PB - Mendeleev Communications
ER -
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@article{2026_Gribanova,
author = {Tatyana N Gribanova and Ruslan Mikhailovich Minyaev and Vladimir Isaakovich Minkin},
title = {Self-association of pyramidane: unusual consequences of its high basicity},
journal = {Mendeleev Communications},
year = {2026},
publisher = {Mendeleev Communications},
month = {Sep},
url = {https://mendcomm.colab.ws/publications/10.71267/mencom.8074},
doi = {10.71267/mencom.8074}
}
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Keywords

H-bonded complexes
high basicity
non-classical carbon
nucleophile ability
proton affinity
proton exchange
pyramidal carbon
pyramidane
pyramidane hydrogen bonds
pyramidane self-association

Abstract

DFT calculations predict self-association of pyramidane molecules to form polymolecular complexes (C5H4)n stabilized by unusual C···HC hydrogen bonds. The protonated complex [(C5H4)–H–(C5H4)]+ tolerates proton-exchange rearrangements, which have a low energy barrier.

Funders

Ministry of Education and Science of the Russian Federation
FENW-2026-0014

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