AI Article Synopsis
- The synthesis of a one-dimensional coordination polymer occurred through a solvothermal reaction involving zinc nitrate, a specific ligand (3-bpep), and furan-2,5-dicarboxylic acid, resulting in a compound referred to as (1).
- This compound (1) can undergo a transformation into another polymer (2) when exposed to UV light, showcasing a crystal-to-crystal change through a process called regioselective photocycloaddition.
- Additionally, this new polymer (2) can revert back to compound (1) upon heating to 240 °C, thus demonstrating a reversible cycle that allows for interesting changes in dielectric properties.
Article Abstract
Solvothermal reaction of Zn(NO3)2 with 2,9-bis-(2-pyridine-3-yl-vinyl)-[1,10]phenanthroline (3-bpep) and furan-2,5-dicarboxylic acid (2,5-H2FDC) afforded a one-dimensional (1D) coordination polymer {[Zn2(3-bpep)2(2,5-FDC)2]·1.5H2O}n (1), which undergoes regioselective photocycloaddition to yield another 1D coordination polymer {[Zn2(3-bpep)(trans,rctt-3-bpbpycb)0.5(2,5-FDC)2]·H2O}n (2) in a single-crystal-to-single-crystal manner under UV light irradiation. The reverse process from 2 to 1 can be achieved by heating 2 at 240 °C. Such a photocycloaddition/thermocycloreversion cycle results in an interesting reversible dielectric switching.
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| http://dx.doi.org/10.1039/c9cc00864k | DOI Listing |
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