An abnormal threefold interpenetrated diamond-like network formed by assembly of H₂BOPTC^2– with DABCOH₂²⁺: a new route for the construction of diamond-like SOFs

Abstract

Solvothermal reaction of H₄BOPTC and DABCO afforded a supramolecular organic framework (SOF), formulated as []·[H₂BOPTC^2–] (1) [1,4-diazabicyclo[2.2.2]octane (DABCO) and benzophenone-3,3′,4,4′-tetracarboxylic acid (H₄BOPTC)]. The structure of 1 was characterised by elemental analysis, IR and single-crystal X-ray diffraction. It reveals that self-assembly of H₂BOPTC^2– forms (6.3) nets and the nets connect to linear spacer to give an abnormal threefold interpenetrated diamond-like framework, which demonstrates a new route and expands the selection of tectons for constructing diamond-like SOFs. The thermal stability and photoluminescent property of 1 have also been investigated.

Abstract

Self-assembly of H₂BOPTC^2– and linear spacer affords an abnormal threefold interpenetrated diamond-like network. This work reveals a new promising route and expands the selection of tectons for the construction of diamond-like supramolecular organic frameworks.

Keywords::

• supramolecular organic framework
• diamond
• interpenetration
• hydrogen bond

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos 21062013 and 21263014), the Natural Science Foundation of Jiangxi Province (No. 2011ZBAB203013) and the Foundation of Educational Department of Jiangxi Province (No. GJJ12103).