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Structural Archive

Cucurbituril-Related Crystal Structures

Explore a curated three-dimensional collection of cucurbituril-related single-crystal structures from our group and the wider research community.

We gratefully acknowledge the support of the Shanghai Synchrotron Radiation Facility.

Source

Topic

Year

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2026 Other Groups π-Stacked Dyads

CB[8]-(M-4R)₂: terphenylpyridinium dyad

The 1:2 complex pairs two extended 4-terphenylpyridinium guests within CB[8], illustrating the aromatic overlap used to suppress axial slippage (CCDC 2474359).

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2026 Guanglu Lab π-Stacked Dyads

BPP: free-state π-stacked dyad

A centrosymmetric BPP molecule forms a parallel slipped dyad with a 3.438 Å interchromophore spacing, the free-state reference for confinement-induced structural restriction (CCDC 2444592).

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2026 Guanglu Lab Cucurbituril-POM Hybrids

CB[5]-NH₂POM: portal-directed motif

One protonated Anderson-type NH₂POM is linked at both termini to two CB[5] portals by five-point contacts, defining the anisotropic growth axis (CCDC 2452567).

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2026 Guanglu Lab Cucurbituril-POM Hybrids

CB[5]-CH₃POM: outer-surface motif

A CB[5] outer wall contacts four neighboring CH₃POM clusters without portal engagement, producing a more isotropic packing motif (CCDC 2452568).

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2026 Other Groups π-Stacked Dyads

CB[8]-(M-3R)₂: biphenylpyridinium dyad

The 1:2 complex pairs two 4-biphenylpyridinium guests within CB[8], confirming the binding geometry inferred from NMR (CCDC 2474071).

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2025 Guanglu Lab π-Stacked Dyads Chiral Ring-in-Ring Complexes

(S)-BINAD-F3⊂CB[8]: chiral ring-in-ring

Axially chiral BINAD compresses to a 77° dihedral angle and induces an 18° helical twist in the stacked phenylpyridinium units (CCDC 2404494).

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2025 Guanglu Lab π-Stacked Dyads

BPP₂·CB[8]₂: Na⁺-bridged 2:2 intermediate

Two parallel BPP guests are clamped by two CB[8] hosts, while a symmetry-related Na⁺ pair bridges both CB[8] portals and the BPP carbonyls (CCDC 2417619).

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2025 Guanglu Lab π-Stacked Dyads

Sb-F3⊂CB[8]: para-benzene core

Ring-in-rings complex featuring a cofacial para-benzene dyad and oppositely oriented carbonyl pairs (CCDC 2402048).

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2025 Guanglu Lab π-Stacked Dyads

Sc-F3⊂CB[8]: Antiparallel 1,4-naphthalene

Solid-state evidence for antiparallel cofacial stacking of a 1,4-naphthalene dyad (CCDC 2402049).

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2025 Guanglu Lab π-Stacked Dyads

Sd-F3⊂CB[8]: 2,7-naphthalene core

Ring-in-rings complex with a cofacial 2,7-naphthalene dyad and aligned carbonyl pairs (CCDC 2402032).

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2025 Guanglu Lab π-Stacked Dyads

Sg-F3⊂CB[8]: para-biphenyl core

Extended ring-in-rings complex displaying a cofacial para-biphenyl dyad within dual CB[8] clamps (CCDC 2402050).

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2025 Guanglu Lab π-Stacked Dyads

Sa-F3⊂CB[8]: meta-benzene core

Dual-CB[8]-restricted ring-in-rings complex with a cofacial meta-benzene dyad (CCDC 2402046).

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2024 Other Groups Peptide Recognition

CB[8]·GGLYGGG: type II β-turn

CB[8] binds the nonterminal Leu/Tyr dipeptide site of Gly-Gly-Leu-Tyr-Gly-Gly-Gly, revealing a pair-inclusion motif and host-induced type II β-turn (CCDC 2312293).

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2020 Other Groups π-Stacked Dyads

CB[8]₂·bromophenyl-triazine stack

Two CB[8] hosts organize two hydroxytriazine-linked bis(bromophenylpyridinium) guests into the quaternary stacking motif used for visible-light-excited aqueous RTP (CCDC 1951720).

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2018 Other Groups π-Stacked Dyads

CB[8]·(G3)₂: carboxyphenylpyridinium control

The G3 control crystallizes as a 2:1 CB[8] complex without the unusual cationic Py⁺/Py⁺ stacking seen for G2 (CCDC 1813463).

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2018 Other Groups π-Stacked Dyads

CB[8]·(G4)₂: ester-pyridylamide control

The G4 control pairs two methoxycarbonyl-pyridylamide phenylpyridinium guests in a 2:1 CB[8] complex (CCDC 1813464).

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2018 Other Groups π-Stacked Dyads

CB[8]·(G5)₂: carboxypyridylamide control

The G5 control forms a 2:1 CB[8] complex with carboxypyridylamide phenylpyridinium guests, contrasting the multivalent G1/G2 dimerization motifs (CCDC 1813465).

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2018 Other Groups π-Stacked Dyads

CB[8]₂·(G1)₂: Py⁺/benzyl heterodyad

G1 forms a 2:2 quaternary CB[8] complex in which the hosts capture antiparallel Py⁺/benzyl heterodimers at the two ends of the backbone (CCDC 1810722).

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2018 Other Groups π-Stacked Dyads

CB[8]₂·(G2)₂: Py⁺/Py⁺ homodyad

G2 forms a 2:2 quaternary complex that places two cationic Py⁺ units in parallel stacking inside each CB[8] cavity (CCDC 1810723).

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2014 Other Groups π-Stacked Dyads

CB[8]·(T1)₂: methoxyphenylpyridinium dyad

CB[8] pairs two p-methoxyphenyl-N-methylpyridinium T1 guests in a head-to-tail 1:2 complex from the Chem. Asian J. study (CCDC 977538).

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2014 Other Groups π-Stacked Dyads

CB[8]·(T2)₂: methylthiophenylpyridinium dyad

CB[8] captures two p-(methylthio)phenyl-N-methylpyridinium T2 guests as a head-to-tail 1:2 aromatic dyad (CCDC 977539).

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2006 Other Groups Peptide Recognition

CB[8]·WGG: N-terminal tryptophan

CB[8] binds Trp-Gly-Gly through indole inclusion and N-terminal ammonium chelation at the portal, capturing the sequence-specific recognition motif from the JACS 2006 study.

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2006 Other Groups Peptide Recognition

CB[8]·(FGG)₂: cooperative peptide dimer

Two Phe-Gly-Gly guests share one CB[8] cavity, visualizing the cooperative dimerization mode driven by paired phenyl inclusion and portal ammonium contacts.

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