Synthesis, crystal structure of two new Zn(II), Cu(II) porphyrins and their catalytic activities to ethylbenzene oxidation

Zhang, Zengqi; Yuan, Daoxian; Zhang, Li; Yu, Mimi C.; Li, Jun

doi:10.1016/j.inoche.2015.05.024

Cited by 20 publications

(8 citation statements)

References 33 publications

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“…The ZnÀ N bonding distances were computed to be 2.04-2.08 Å in agreement with the results of other computational studies. [23,24] The a ln β × 10 3 at 298 K was evaluated by usingthe ln RPFR ∝ T À 2 relation. [19] Figure 4. ɛ 66 vs. Δlnβ.…”

Section: Resultsmentioning

confidence: 99%

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Fujii

Kato

Mahan

et al. 2021

Zeitschrift anorg allge chemie

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Isotope fractionation of Zn was studied via liquid-liquid extraction with aqueous phase of ZnCl 2 /HCl and organic phase of crown ethers(CEs), including benzo15-crown-5(B15C5), benzo-18-crown-6(B18C6) and Dicyclohexano-24-crown-8(DC24C8)/ 1,2-dichloroethane. The isotope enrichment factor (ɛ 66), expressed in permil notation, of the isotope pair 66 ZnÀ 64 Zn was found to be between À 0.24 and À 0.52 % in the order of enrichment: B15C5 � B18C6 > DC24C8. The magnitude of ɛ 66 was well explained by theoretical isotope fractionation factors obtained by density functional theory method for zinc chloride and ZnCl 2 /CE model molecules, and a thermochemical description that correlates ɛ 66 with the differences in Gibbs free energy(ΔG) of the exchange reaction, here termed δΔG, based on the mass differences of Zn isotopes involved. Finally, results suggest that ɛ 66 may be used as a diagnostic and metric of Zn metabolic derangement, such as in porphyrias.

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Section: Resultsmentioning

confidence: 99%

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Fujii

Kato

Mahan

et al. 2021

Zeitschrift anorg allge chemie

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“…Although there exist some ZnPs with an octahedral configuration obtained by the coordination of solvent molecules such as 1,4-dioxane and pyridine (Py) from axial positions, only one example of ZnPc with an octahedral configuration coordinated with two acetone molecules is known in the literature . However, ZnPc single crystals obtained so far possess either a square or square-pyramidal geometry. ,,− Another interesting property of the crystal structure of P-CfZnPc is that, although the H 2 O oxygen–zinc bond in [ZnPc(H 2 O)]·2DMF and DMF oxygen–zinc bond in [ZnPp(DMF)]·DMF have average distances of 2.08 and 2.10 Å, respectively, P-CfZnPc prefers a longer (2.63 Å) crown ether oxygen coordination. The octahedral geometry is formed by four N donor atoms of Pc and two additional O donor atoms of the 9-crown-3-ether ring.…”

Section: Resultsmentioning

confidence: 99%

Superior Sensor for Be²⁺ Ion Recognition via the Unprecedented Octahedral Crystal Structure of a One-Dimensional Coordination Polymer of Crown Fused Zinc Phthalocyanine

et al. 2018

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The unprecedented one-dimensional (1-D) coordination polymer of crown fused zinc phthalocyanine (P-CfZnPc) with an octahedral crystal structure and with intermolecular packing that has superior multichannel sensor ability for Be2+ ion recognition was prepared and characterized by single-crystal X–ray diffraction analysis (XRD) and a wide range of spectroscopic and voltammetric methods. An exceptional feature of the crystal structure of P-CfZnPc is that each zinc ion in the phthalocyanine (Pc) polymer is coordinated by the four isoindole nitrogen atoms and an outer oxygen atom of the Pc molecule. This structure is the first example of an octahedral arrangement in a 1-D polymeric chain for zinc phthalocyanines (ZnPcs) and zinc porphyrins (ZnPs) reached without the presence of a coordinating solvent, which was confirmed by XRD analysis. Interestingly, this (1-D) coordination polymer preserves its conformation in THF (tetrahydrofuran) solution, thereby effectively preventing aggregation. This result was confirmed by the particle size of the molecule (125 nm) using dynamic light scattering (DLS) and matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectra as well as UV–vis spectroscopy. The sensor has long-term stability (more than 3 months in solution), a very low response time (less than 1 s), and nonaggregating ability, facilitating the accurate determination of ultra-trace amounts of Be2+ (lower than 1 ppb), which is extremely important in terms of human health and environmental protection. The sensor can highly selectively and sensitively bind Be2+ among Li+, Na+, K+, Cs+, Mg2+, Ca2+, Ba2+, Al3+, Co2+, Hg2+, Ni2+, Pb2+, and Zn2+ ions via Be2+-induced J aggregation of Pc molecules. Such a binding leads to not only a significant decrease in Pc absorption (677 nm) as well as the creation of new absorption (720 nm) but also fluorescence emission quenching (690 nm). Furthermore, the sensor displayed highly selective voltammetric recognition for Be2+ following J aggregation/disaggregation in the second reduction process. The binding mechanism of the sensor and Be2+ ion was also explained on the basis of TD-DFT calculations.

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“…As shown in Table 3, the catalytic activities of CP1-CP7 decreased in the catalytic reaction as follows: CP6 > CP1 > CP2 > CP4 > CP7 > CP5 > CP3, consistent with the conclusion in the reported literature. [33]…”

Section: Oxygenation Of Alkylbenzene With Tbhp Catalyzed By Cp1-cp7mentioning

confidence: 99%

Impact of metalloporphyrin‐based porous coordination polymers on catalytic activities for the oxidation of alkylbenzene

Lü

Du²,

Mele

et al. 2020

Applied Organom Chemis

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Seven metalloporphyrin‐based porous coordination polymers: Feш (TZP)Poly (CP1), CoII (TZP)Poly (CP2), NiII (TZP)Poly (CP3), CuII (TZP)Poly (CP4), ZnII (TZP)Poly (CP5), MnII (TZP)Poly (CP6), PbII (TZP)Poly (CP7) (TZP = 5,10,15,20‐ tetrakis[4‐(2,3,4,5‐tetrazolylphenyl)] porphyrin) were prepared and characterized. CP1−CP7 are amorphous aggregation supported with lower crystallinity by scanning electron microscopy, Brunauer−Emmett−Teller and powder X‐ray diffraction. These coordination polymers exhibit effective dye scavenging and catalytic activities toward the oxidation of alkylbenzene to ketones and can be reused by filtration with a slight decreasing of catalytic activities. Metal atoms metalloporphyrin polymers have a great influence on the catalytic activities of metalloporphyrin polymers.

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Synthesis, crystal structure of two new Zn(II), Cu(II) porphyrins and their catalytic activities to ethylbenzene oxidation

Cited by 20 publications

References 33 publications

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Superior Sensor for Be²⁺ Ion Recognition via the Unprecedented Octahedral Crystal Structure of a One-Dimensional Coordination Polymer of Crown Fused Zinc Phthalocyanine

Impact of metalloporphyrin‐based porous coordination polymers on catalytic activities for the oxidation of alkylbenzene

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Synthesis, crystal structure of two new Zn(II), Cu(II) porphyrins and their catalytic activities to ethylbenzene oxidation

Cited by 20 publications

References 33 publications

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Study on the Isotope fractionation of Zinc in Complexation with Macrocyclic Polyethers

Superior Sensor for Be2+ Ion Recognition via the Unprecedented Octahedral Crystal Structure of a One-Dimensional Coordination Polymer of Crown Fused Zinc Phthalocyanine

Impact of metalloporphyrin‐based porous coordination polymers on catalytic activities for the oxidation of alkylbenzene

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Superior Sensor for Be²⁺ Ion Recognition via the Unprecedented Octahedral Crystal Structure of a One-Dimensional Coordination Polymer of Crown Fused Zinc Phthalocyanine