Related Experiment Video
Updated: Feb 2, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
Dynamic Nuclear Polarization of Metal-Organic Frameworks Using Photoexcited Triplet Electrons
Saiya Fujiwara1, Masanori Hosoyamada1, Kenichiro Tateishi2,3
1Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS) , Kyushu University , 744 Moto-oka , Nishi-ku, Fukuoka 819-0395 , Japan.
Abstract:
While dynamic nuclear polarization based on photoexcited triplet electrons (triplet-DNP) has the potential to hyperpolarize nuclear spins of target substrates in the low magnetic field at room temperature, there has been no triplet-DNP system offering structural rigidity and substrate accessibility. Here, we report the first example of triplet-DNP of nanoporous metal-organic frameworks. Accommodation of a carboxylate-modified pentacene derivative in a partially deuterated ZIF-8 (D-ZIF-8) results in a clear 1H NMR signal enhancement over thermal equilibrium.
More Related Videos
Related Concept Videos
Properties of Transition Metals
Molecular Shape and Polarity
Bonding in Metals
Nuclear Stability
To hold positively charged protons together...
Nuclear Transmutation
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

