Rational design of hydrothermal in situ ligand synthesis to fabricate two new coordination polymer

Abstract

Two novel compounds, [Cu₃I₃(TPC)_0.5(BPP)₂]_n (1) and [Cu₂Cl₂(TPC)_0.5]_n (2) (TPC=1-hydroxy- 1,2,4,5-tetra(4-pyridyl)cyclohexane ligand, bpp=1,3-dipyridyl-propane ligand)have been hydrothermally synthesized and structurally characterized by elemental analyses, IR and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that 1 and 2 are constructed by the hydrothermal in situ formation of a tetradentate ligand, TPC, through dehydrogenative coupling and hydroxylation of 1,3-bis(4-pyridyl)propane molecules. Compound 1 is three-dimensional self-penetrating network constructed in situ ligands and the original ligand which has rarely been reported in metal–organic frameworks (MOFs). Compound 2 is a chain structure with TPC. The rational design strategy in this article will facilitate the application in the construction of new MOFs or in situ ligand synthesis. Furthermore, the solid-state photoluminescent properties have also been investigated for 1 and 2. (CCDC: 1995908, 1; 2058314, 2).

Keywords:

• Copper(I) coordination polymer
• in situ
• dehydrogenative coupling

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by the Training Program of FuJian Excellent Talents in University (FETU), Young and Middle-age academic leader plan of Quanzhou in University [20182020], First-class specialty construction in Fujian province-applied Chemistry.