Structural and Magnetic Properties of Cu(dpa) X<sub>2</sub>(dpa = Di-(2-picolyl)amine; X = Cl and Br)

doi:10.5012/bkcs.2007.28.5.855

Bulletin of the Korean Chemical Society

2007

DOI: 10.5012/bkcs.2007.28.5.855

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Structural and Magnetic Properties of Cu(dpa) X₂(dpa = Di-(2-picolyl)amine; X = Cl and Br)

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Cited by 9 publications

References 15 publications

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Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

et al. 2020

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Cu-containing metalloenzymes are known to catalyze oxygen activation through cooperative catalysis. In the current work, we report the design of synthetic polymer Cu catalysts using pyrene-labelled poly(2-hydroxy-3-dipicolylamino) propyl methacrylate (Py-PGMADPA) to coordinate multiple Cu sites along polymer chains. The catalysts feature a pyrene end group that can form supramolecular π-π stacking with conductive carbon to allow efficient immobilization of catalysts to the graphite electrode. Cu-containing Py-PGMADPA was examined for electrocatalytic oxygen reduction. The hybrid catalyst showed an onset potential of 0.5 V (vs. RHE) at pH 7 and 0.79 V at pH 13. The kinetic study indicated that the catalyst had a 2e À reduction of oxygen mainly mediated by Cu + centers. We demonstrated the importance of cooperative catalysis among Cu sites which did not exist for other transition metal ions, like Mn 2 + , Fe 2 + , Co 2 + , and Ni 2 +. The confinement of polymer chains promotes the activity and stabilizes Cu catalysts even at an extremely low Cu loading. The rational design of bioinspired polymer catalysts offers an alternative way to prepare synthetic mimics of metalloenzymes.

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Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

et al. 2020

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Homobinuclear sulfato-bridged and mononuclear nitrato complexes of Cu(II) with thiophen-2-yl-dipicolylamine; structure and anion-dependent absorption spectra

Zimmerman

Bettencourt‐Dias

2011

Inorganic Chemistry Communications

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Reversible Breathing Process and Associated Thermochromism of a Stacked-Layer Porous Supramolecular Material

Tsobnang

Ngolui

Wenger

et al. 2017

Crystal Growth & Design

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The two-dimensional (2-D) catena-{Co(amp)3Cr(ox)3·6H2O}(amp = 2-picolylamine, ox = oxalate) compound is built by the [Co(amp)3]3+ (D) and [Cr(ox)3]3– (A) ions via multiple hydrogen bonds and hosts well-resolved R12 dodecameric discrete water cluster rings between its stacked layers. It undergoes reversible single crystal to single crystal transformation upon dehydration and rehydration in air, both processes being correlated to gradual changes from brown (hydrated phase) to green (dehydrated phase) and vice versa. The water uptake mass of this compound is 0.13 g/g of sample, and the rehydration process needs 90 min. The rate limiting step of the rehydration process is the diffusion of the water molecules into the framework of the dehydrated phase because the latter does not have voids. The 2-D catena-{Co(amp)3Cr(ox)3·6H2O} can undergo many cycles of dehydration/rehydration (breathing) processes without losing its crystallinity. During these processes, its unit cell contracts and expands by 9.39% along the a axis, 12.22% along b, and 2.03% along c for a total volume change of 22.03%. The breakage and formation of some hydrogen bonds in the compound take place alongside the processes, especially along the b axis, which is the main direction of modification of the unit cell. One of these hydrogen bonds is responsible for the modification of the coordination polyhedron around the chromium(III) ions which becomes less distorted and provokes the gradual thermochromic property observed in this compound.

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Structural and Magnetic Properties of Cu(dpa) X₂(dpa = Di-(2-picolyl)amine; X = Cl and Br)

Cited by 9 publications

References 15 publications

Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

Homobinuclear sulfato-bridged and mononuclear nitrato complexes of Cu(II) with thiophen-2-yl-dipicolylamine; structure and anion-dependent absorption spectra

Reversible Breathing Process and Associated Thermochromism of a Stacked-Layer Porous Supramolecular Material

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Structural and Magnetic Properties of Cu(dpa) X2(dpa = Di-(2-picolyl)amine; X = Cl and Br)

Cited by 9 publications

References 15 publications

Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

Bioinspired Design of Hybrid Polymer Catalysts with Multicopper Sites for Oxygen Reduction

Homobinuclear sulfato-bridged and mononuclear nitrato complexes of Cu(II) with thiophen-2-yl-dipicolylamine; structure and anion-dependent absorption spectra

Reversible Breathing Process and Associated Thermochromism of a Stacked-Layer Porous Supramolecular Material

Contact Info

Product

Resources

About

Structural and Magnetic Properties of Cu(dpa) X₂(dpa = Di-(2-picolyl)amine; X = Cl and Br)