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3,172 Newest Publications about the topic fragmentation

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Dissociative electron attachment induced ring opening in five-membered heterocyclic compounds

03-Jul-2018 | Zhou Li; Ian Carmichael; Sylwia Ptasińska, Physical Chemistry Chemical Physics, 2018

Five-membered heterocyclic structures, which exist widely in biological systems and play an active role in various biochemical processes, have been studied extensively from a fundamental perspective. Here, the fragmentation patterns of isoxazole, a representative five-membered heterocycle, upon ...

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Carbenium ion formation by fragmentation of electrochemically generated oxonium ions

03-Jul-2018 | Anna Lielpetere; Aigars Jirgensons, Organic & Biomolecular Chemistry, 2018

Fragmentation of electrochemically generated oxonium ions can be exploited to form carbenium ions at low oxidation potential in the presence of a nuclephile. The application of this concept is demonstrated for allylation of carbenium ions generated by anodic oxidation of ...

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A multiscale natural community and species-level vulnerability assessment of the Gulf Coast, USA

29-Jun-2018 | Joshua Steven Reece; Amanda Watson; Patricia Soupy Dalyander; Cynthia Kallio Edwards; Laura Geselbracht; Megan K. La ..., PLoS ONE, 2018

by Joshua Steven Reece, Amanda Watson, Patricia Soupy Dalyander, Cynthia Kallio Edwards, Laura Geselbracht, Megan K. LaPeyre, Blair E. Tirpak, John M. Tirpak, Mark Woodrey Vulnerability assessments combine quantitative and qualitative evaluations of the exposure, sensitivity, and adaptive ...

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Recent examples of [small alpha]-ketoglutarate-dependent mononuclear non-haem iron enzymes in natural product biosyntheses

26-Jun-2018 | Shu-Shan Gao; Nathchar Naowarojna; Ronghai Cheng; Xueting Liu; Pinghua Liu, Natural Product Reports, 2018

Covering: up to 2018α-Ketoglutarate (αKG, also known as 2-oxoglutarate)-dependent mononuclear non-haem iron (αKG-NHFe) enzymes catalyze a wide range of biochemical reactions, including hydroxylation, ring fragmentation, C–C bond cleavage, epimerization, desaturation, endoperoxidation and ...

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The influence of oxidative debris on fragmentation and laser desorption/ionization process of graphene oxide derivatives

26-Jun-2018 | Yu Rim Hong; Jieon Lee; Bon-Cheol Ku; Kyungtae Kang; Seunghyun Lee; Seongwoo Ryu; Young-Kwan Kim, New Journal of Chemistry, 2018

Effect of oxidative debris (OD) on fragmentation behavior and laser desorption/ionization (LDI) process of graphene oxide (GO) derivatives was systematically investigated to explore the potential of LDI time-of-flight mass spectrometry (LDI-TOF-MS) as a chracterization tool for their chemical ...

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Sustainability, Vol. 10, Pages 2147: A New Approach to Land-Use Structure: Patch Perimeter Metrics as a Spatial Analysis Tool

24-Jun-2018 | Zambon, Ilaria ; Serra, Pere ; Pili, Silvia ; Bernardini, Vincenzo ; Ferrara, Carlotta ; Salvati, Luca, Sustainability, 2018

Sustainability, Vol. 10, Pages 2147: A New Approach to Land-Use Structure: Patch Perimeter Metrics as a Spatial Analysis Tool Sustainability doi: 10.3390/su10072147 Authors: Ilaria Zambon Pere Serra Silvia Pili Vincenzo Bernardini Carlotta Ferrara Luca Salvati This work ...

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Sustainability, Vol. 10, Pages 2120: Is Land Fragmentation Facilitating or Obstructing Adoption of Climate Adaptation Measures in Ethiopia?

21-Jun-2018 | Cholo, Tesfaye C.; Fleskens, Luuk ; Sietz, Diana ; Peerlings, Jack, Sustainability, 2018

Sustainability, Vol. 10, Pages 2120: Is Land Fragmentation Facilitating or Obstructing Adoption of Climate Adaptation Measures in Ethiopia? Sustainability doi: 10.3390/su10072120 Authors: Tesfaye C. Cholo Luuk Fleskens Diana Sietz Jack Peerlings Land fragmentation is high and ...

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Sustainability, Vol. 10, Pages 1979: Landscape Connectivity as a Tool in Green Space Evaluation and Optimization of the Haidan District, Beijing

13-Jun-2018 | Guo, Shiyi ; Saito, Kaoru ; Yin, Weida ; Su, Chang, Sustainability, 2018

Sustainability, Vol. 10, Pages 1979: Landscape Connectivity as a Tool in Green Space Evaluation and Optimization of the Haidan District, Beijing Sustainability doi: 10.3390/su10061979 Authors: Shiyi Guo Kaoru Saito Weida Yin Chang Su The demand for urban construction has ...

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Accurate prediction of the structure and vibrational spectra of ionic liquid clusters with the generalized energy-based fragmentation approach: critical role of ion-pair-based fragmentation

01-Jun-2018 | Yunzhi Li; Dandan Yuan; Qingchun Wang; Wei Li; Shuhua Li, Physical Chemistry Chemical Physics, 2018

A generalized energy-based fragmentation (GEBF) approach has been developed to facilitate ab initio calculations of the ground-state energies, structures and vibrational spectra of general ionic liquid (IL) clusters. For the selected IL clusters, the accuracy of the GEBF approach with two ...

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Accurate prediction of the structure and vibrational spectra of ionic liquid clusters with the generalized energy-based fragmentation approach: critical role of ion-pair-based fragmentation

01-Jun-2018 | Yunzhi Li; Dandan Yuan; Qingchun Wang; Wei Li; Shuhua Li, Physical Chemistry Chemical Physics, 2018

A generalized energy-based fragmentation (GEBF) approach has been developed to facilitate ab initio calculations of the ground-state energies, structures and vibrational spectra of general ionic liquid (IL) clusters. For the selected IL clusters, the accuracy of the GEBF approach with two ...

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