Crystalline Inclusion Compounds: Thiourea and Bis-quaternary Ammonium Salts

Yuan, Ye; Yang, Yun-Xia; Qi, Li

doi:10.1007/s10870-015-0571-5

Cited by 2 publications

(2 citation statements)

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“…They display self-adaptive structural characteristics for selective recognition due to the reversible nature of weak interactions. Organic inclusion compounds such as urea, 29,30 thiourea, 31 catechol, 32 cyclodextrins, 33,34 and Dianin's compounds 35,36 have been extensively studied in the context of host−guest chemistry and specific encapsulation of guest molecules. 37 43,44 Such weaker hydrogen-bonding interactions can provide a new perspective to construct self-adaptive HOFs for their unique adsorption properties.…”

Section: ■ Introductionmentioning

confidence: 99%

“…They display self-adaptive structural characteristics for selective recognition due to the reversible nature of weak interactions. Organic inclusion compounds such as urea, , thiourea, catechol, cyclodextrins, , and Dianin’s compounds , have been extensively studied in the context of host–guest chemistry and specific encapsulation of guest molecules . HOFs emphasize extended frameworks through weak interactions and have some other superior properties, including easy recovery and healing capability through simple recrystallization.…”

Section: Introductionmentioning

confidence: 99%

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Self-Healing B ← N-Based Hydrogen-Bonded Organic Framework for Exclusive Recognition and Separation of Toluene from Methyl-Cyclohexane

Li,

Chen,

Huang

et al. 2024

J. Am. Chem. Soc.

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The effective separation of aromatic and aliphatic hydrocarbons remains a notable challenge in the petrochemical industry. Herein, we report a self-healing three-dimensional B ← N-based hydrogen-bonded organic framework (HOF), BN-HOF-1, constructed from discrete B ← N inclusive dimers through weak C−H•••F and C−H•••N hydrogen-bonding interactions. To make use of the specific recognition of the B ← N inclusive dimers for the toluene molecules and the reversible ad/desorption nature of this novel HOF, BN-HOF-1 can exclusively recognize and separate toluene from the mixtures of toluene-methylcyclohexane, thus generating 99.6% pure toluene from its mixtures after gentle heating, the recorded value among any reported materials for toluene purification. After the toluene molecules were released from the framework, it becomes the condensed BN-HOF-1a, which can be further reused for the highly selective recognition and purification of toluene from its binary mixtures, through the reversible structural recovery back to BN-HOF-1. Single-crystal X-ray diffraction and molecular modeling studies reveal that the high specific toluene recognition is attributed to the complementary electrostatic potential between the host B ← N inclusive dimers and the guest toluene, while the self-healing and recovery nature of this HOF is attributed to weak intermolecular hydrogen-bonding interactions.

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Section: ■ Introductionmentioning

confidence: 99%

“…They display self-adaptive structural characteristics for selective recognition due to the reversible nature of weak interactions. Organic inclusion compounds such as urea, , thiourea, catechol, cyclodextrins, , and Dianin’s compounds , have been extensively studied in the context of host–guest chemistry and specific encapsulation of guest molecules . HOFs emphasize extended frameworks through weak interactions and have some other superior properties, including easy recovery and healing capability through simple recrystallization.…”

Section: Introductionmentioning

confidence: 99%