On-surface isostructural transformation from a hydrogen-bonded network to a coordination network for tuning the pore size and guest recognition

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Rational manipulation of supramolecular structures on surfaces is of great importance and challenging. We show that imidazole-based hydrogen-bonded networks on a metal surface can transform into an isostructural coordination network for facile tuning of the pore size and guest recognition behaviours. Deposition of triangular-shaped benzotrisimidazole (H3btim) molecules on Au(111)/Ag(111) surfaces gives honeycomb networks linked by double N-H⋯N hydrogen bonds. While the H3btim hydrogen-bonded networks on Au(111) evaporate above 453 K, those on Ag(111) transform into isostructural [Ag3(btim)] coordination networks based on double N-Ag-N bonds at 423 K, by virtue of the unconventional metal-acid replacement reaction (Ag reduces H+). The transformation expands the pore diameter of the honeycomb networks from 3.8 Å to 6.9 Å, giving remarkably different host-guest recognition behaviours for fullerene and ferrocene molecules based on the size compatibility mechanism.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Chemical science - 12(2020), 4 vom: 13. Nov., Seite 1272-1277

Sprache:

Englisch

Beteiligte Personen:

Zhou, Dong-Dong [VerfasserIn]
Wang, Jun [VerfasserIn]
Chen, Pin [VerfasserIn]
He, Yangyong [VerfasserIn]
Wu, Jun-Xi [VerfasserIn]
Gao, Sen [VerfasserIn]
Zhong, Zhihao [VerfasserIn]
Du, Yunfei [VerfasserIn]
Zhong, Dingyong [VerfasserIn]
Zhang, Jie-Peng [VerfasserIn]

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Date Revised 04.04.2024

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1039/d0sc05147k

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM327111542