1
|
Zhang Z, Dou H, Gao R, Zhao QY, Luo D, Wang J, Zeng XX, Yu A, Wang X, Chen Z. Steering Carbon Hybridization State in Carbon-Based Metal-free Catalysts for Selective and Durable CO 2 Electroreduction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhen Zhang
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Haozhen Dou
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Rui Gao
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Qing-Yuan Zhao
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Dan Luo
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jian Wang
- Canadian Light Source Inc, University of Saskatchewan, Saskatoon S7N 2V3, Saskatchewan, Canada
| | - Xian-Xiang Zeng
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Aiping Yu
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - Xin Wang
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Zhongwei Chen
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| |
Collapse
|
2
|
Green synthesis of graphite from CO 2 without graphitization process of amorphous carbon. Nat Commun 2021; 12:119. [PMID: 33402678 PMCID: PMC7785740 DOI: 10.1038/s41467-020-20380-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 11/24/2020] [Indexed: 11/08/2022] Open
Abstract
Environmentally benign synthesis of graphite at low temperatures is a great challenge in the absence of transition metal catalysts. Herein, we report a green and efficient approach of synthesizing graphite from carbon dioxide at ultralow temperatures in the absence of transition metal catalysts. Carbon dioxide is converted into graphite submicroflakes in the seconds timescale via reacting with lithium aluminum hydride as the mixture of carbon dioxide and lithium aluminum hydride is heated to as low as 126 °C. Gas pressure-dependent kinetic barriers for synthesizing graphite is demonstrated to be the major reason for our synthesis of graphite without the graphitization process of amorphous carbon. When serving as lithium storage materials, graphite submicroflakes exhibit excellent rate capability and cycling performance with a reversible capacity of ~320 mAh g–1 after 1500 cycles at 1.0 A g–1. This study provides an avenue to synthesize graphite from greenhouse gases at low temperatures. Green synthesis of graphite is a great challenge in the absence of the graphitization of amorphous carbon at high temperatures. Here, the authors report a green approach of synthesizing graphite from carbon dioxide at low temperature in seconds timescale.
Collapse
|
3
|
Cahoon CR, Goossens K, Bielawski CW. Poly(carbyne)s via reductive
C1
polymerization. POLYM INT 2020. [DOI: 10.1002/pi.6115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Collin R Cahoon
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) Ulsan Republic of Korea
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
| | - Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) Ulsan Republic of Korea
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) Ulsan Republic of Korea
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
| |
Collapse
|
4
|
Gao J, Wang Y, Wu H, Liu X, Wang L, Yu Q, Li A, Wang H, Song C, Gao Z, Peng M, Zhang M, Ma N, Wang J, Zhou W, Wang G, Yin Z, Ma D. Construction of a sp
3
/sp
2
Carbon Interface in 3D N‐Doped Nanocarbons for the Oxygen Reduction Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907915] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jian Gao
- State Key Laboratory of Separation Membranes and Membrane Processes Department of Chemical Engineering Tianjin Polytechnic University 399 Binshui West Road Tianjin 300387 China
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering Tianjin Polytechnic University Tianjin 300387 China
| | - Yun Wang
- Centre for Clean Environment and Energy, Gold Coast Campus Griffith University Queensland 4222 Australia
| | - Haihua Wu
- State Key Laboratory of Catalysis CAS Center for Excellence in Nanoscience Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Xi Liu
- SynCat@Beijing Synfuels China Technology Co., Ltd. Beijing 101407 China
| | - Leilei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes Department of Chemical Engineering Tianjin Polytechnic University 399 Binshui West Road Tianjin 300387 China
| | - Qiaolin Yu
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| | - Aowen Li
- School of Physical Sciences, CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 China
| | - Hong Wang
- State Key Laboratory of Separation Membranes and Membrane Processes Department of Chemical Engineering Tianjin Polytechnic University 399 Binshui West Road Tianjin 300387 China
- School of Materials Science and Engineering Tianjin Polytechnic University Tianjin 300387 China
| | - Chuqiao Song
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| | - Zirui Gao
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| | - Mi Peng
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| | - Mengtao Zhang
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| | - Na Ma
- School of Materials Science and Engineering Tianjin Polytechnic University Tianjin 300387 China
| | - Jiaou Wang
- Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Wu Zhou
- School of Physical Sciences, CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis CAS Center for Excellence in Nanoscience Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Zhen Yin
- State Key Laboratory of Separation Membranes and Membrane Processes Department of Chemical Engineering Tianjin Polytechnic University 399 Binshui West Road Tianjin 300387 China
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering Tianjin Polytechnic University Tianjin 300387 China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT Peking University Beijing 100871 China
| |
Collapse
|
5
|
Gao J, Wang Y, Wu H, Liu X, Wang L, Yu Q, Li A, Wang H, Song C, Gao Z, Peng M, Zhang M, Ma N, Wang J, Zhou W, Wang G, Yin Z, Ma D. Construction of a sp 3 /sp 2 Carbon Interface in 3D N-Doped Nanocarbons for the Oxygen Reduction Reaction. Angew Chem Int Ed Engl 2019; 58:15089-15097. [PMID: 31444841 DOI: 10.1002/anie.201907915] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/19/2019] [Indexed: 11/05/2022]
Abstract
The development of highly efficient metal-free carbon electrocatalysts for the oxygen reduction reaction (ORR) is one very promising strategy for the exploitation and commercialization of renewable and clean energy, but this still remains a significant challenge. Herein, we demonstrate a facile approach to prepare three-dimensional (3D) N-doped carbon with a sp3 /sp2 carbon interface derived from ionic liquids via a simple pyrolysis process. The tunable hybrid sp3 and sp2 carbon composition and pore structures stem from the transformation of ionic liquids to polymerized organics and introduction of a Co metal salt. Through tuning both composition and pores, the 3D N-doped nanocarbon with a high sp3 /sp2 carbon ratio on the surface exhibits a superior electrocatalytic performance for the ORR compared to that of the commercial Pt/C in Zn-air batteries. Density functional theory calculations suggest that the improved ORR performance can be ascribed to the existence of N dopants at the sp3 /sp2 carbon interface, which can lower the theoretical overpotential of the ORR.
Collapse
Affiliation(s)
- Jian Gao
- State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin, 300387, China.,Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China.,Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Yun Wang
- Centre for Clean Environment and Energy, Gold Coast Campus, Griffith University, Queensland, 4222, Australia
| | - Haihua Wu
- State Key Laboratory of Catalysis, CAS Center for Excellence in Nanoscience, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xi Liu
- SynCat@Beijing, Synfuels China Technology Co., Ltd., Beijing, 101407, China
| | - Leilei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin, 300387, China
| | - Qiaolin Yu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Aowen Li
- School of Physical Sciences, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin, 300387, China.,School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Chuqiao Song
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Zirui Gao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Mi Peng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Mengtao Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| | - Na Ma
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Jiaou Wang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Wu Zhou
- School of Physical Sciences, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis, CAS Center for Excellence in Nanoscience, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhen Yin
- State Key Laboratory of Separation Membranes and Membrane Processes, Department of Chemical Engineering, Tianjin Polytechnic University, 399 Binshui West Road, Tianjin, 300387, China.,Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing, 100871, China
| |
Collapse
|
6
|
|
7
|
Domonkos M, Ižák T, Kromka A, Varga M. Polymer-based nucleation for chemical vapour deposition of diamond. J Appl Polym Sci 2016. [DOI: 10.1002/app.43688] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mária Domonkos
- Department of Optical Materials; Institute of Physics, Czech Academy of Sciences; Cukrovarnická 10, 162 00 Prague 6 Czech Republic
- Department of Physics; Faculty of Civil Engineering, Czech Technical University in Prague; Thákurova 7, 166 29 Prague 6 Czech Republic
| | - Tibor Ižák
- Department of Optical Materials; Institute of Physics, Czech Academy of Sciences; Cukrovarnická 10, 162 00 Prague 6 Czech Republic
| | - Alexander Kromka
- Department of Optical Materials; Institute of Physics, Czech Academy of Sciences; Cukrovarnická 10, 162 00 Prague 6 Czech Republic
- Department of Physics; Faculty of Civil Engineering, Czech Technical University in Prague; Thákurova 7, 166 29 Prague 6 Czech Republic
| | - Marián Varga
- Department of Optical Materials; Institute of Physics, Czech Academy of Sciences; Cukrovarnická 10, 162 00 Prague 6 Czech Republic
| |
Collapse
|
8
|
Nur Y, Toppare L. Synthesis of Poly(silyne-co-hydridocarbyne) for Silicon Carbide Production. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.813782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
9
|
Nur Y, Duygulu Ş, Pitcher MW, Toppare L. The electrochemical synthesis of poly(methylcarbyne) for diamond film coatings. J Appl Polym Sci 2011. [DOI: 10.1002/app.34805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
10
|
Webster OW. Macromolecular architecture for the twenty first century-new products from old monomers. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.199509801124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
11
|
Hempenius MA, Cirmi C, Savio FL, Song J, Vancso GJ. Poly(ferrocenylsilane) Gels and Hydrogels with Redox-Controlled Actuation. Macromol Rapid Commun 2010; 31:772-83. [DOI: 10.1002/marc.200900908] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 02/04/2010] [Indexed: 11/12/2022]
|
12
|
Zhou N, Zhao Y. Conjugated oligoyne-bridged [60]fullerene molecular dumbbells: syntheses and thermal and morphological properties. J Org Chem 2010; 75:1498-516. [PMID: 20141123 DOI: 10.1021/jo9021748] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of linear and star-shaped pi-conjugated oligomer hybrids (2-5) composed of an oligoyne core, ranging from 1,3-butadiyne to 1,3,5,7,9,11-dodecahexayne, and fullerenyl end-capping groups has been synthesized and studied. The molecular structures of these fullerene-oligoyne hybrids were assembled through three key reactions: Pd-catalyzed cross-coupling, Cu-catalyzed oxidative homocoupling, and an in situ alkynylation reaction on [60]fullerene. The properties of these compounds were investigated by UV-vis spectroscopy, differential scanning calorimetry (DSC), and atomic force microscopy (AFM) with the purpose of understanding the thermal reactivity arising from the oligoyne moieties as well as the morphological properties on surface. Our study shows that these fullerene-oligoyne hybrids tend to aggregate in different morphologies, including nanospheres, nanoflakes, and continuous thin films, while the morphological properties appear to be subject to the influence of molecular factors such as oligomer chain length, solubilizing alkylphenyl groups, and the thermal reactivity of the oligoyne unit. The correlation between molecular property and interfacial aggregation behavior evinced by these fullerene-oligoyne hybrids suggests a viable approach to exert bottom-up control over the structures and properties of fullerene based nanomaterials.
Collapse
Affiliation(s)
- Ningzhang Zhou
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X7
| | | |
Collapse
|
13
|
Nur Y, Pitcher MW, Seyyidoğlu S, Toppare L. Facile Synthesis of Poly(hydridocarbyne): A Precursor to Diamond and Diamond‐like Ceramics. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2008. [DOI: 10.1080/10601320801946108] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
14
|
De Gortari I, Galván M, Ireta J, Segall M, Pickard CJ, Payne M. Theoretical Investigations of Oxygen-17 NMR Chemical Shifts to Discriminate among Helical Forms. J Phys Chem A 2007; 111:13099-105. [DOI: 10.1021/jp0751817] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Itzam De Gortari
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| | - Marcelo Galván
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| | - Joel Ireta
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| | - Matthew Segall
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| | - Chris J. Pickard
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| | - Mike Payne
- TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom, Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana, A.P. 55-534, México 09340, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweb 4-6, D-14195 Berlin-Dahlem, Germany
| |
Collapse
|
15
|
Goldbourt A, Gross BJ, Day LA, McDermott AE. Filamentous Phage Studied by Magic-Angle Spinning NMR: Resonance Assignment and Secondary Structure of the Coat Protein in Pf1. J Am Chem Soc 2007; 129:2338-44. [PMID: 17279748 DOI: 10.1021/ja066928u] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Assignments are presented for resonances in the magic-angle spinning solid-state NMR spectra of the major coat protein subunit of the filamentous bacteriophage Pf1. NMR spectra were collected on uniformly 13C and 15N isotopically enriched, polyethylene glycol precipitated samples of fully infectious and hydrated phage. Site-specific assignments were achieved for 231 of the 251 labeled atoms (92%) of the 46-residue-long coat protein, including 136 of the 138 backbone atoms, by means of two- and three-dimensional 15N and 13C correlation experiments. A single chemical shift was observed for the vast majority of atoms, suggesting a single conformation for the 7300 subunits in the 36 MDa virion in its high-temperature form. On the other hand, multiple chemical shifts were observed for the Calpha, Cbeta, and Cgamma atoms of T5 in the helix terminus and the Calpha and Cbeta atoms of M42 in the DNA interaction domain. The chemical shifts of the backbone atoms indicate that the coat protein conformation involves a 40-residue continuous alpha-helix extending from residue 6 to the C-terminus.
Collapse
Affiliation(s)
- Amir Goldbourt
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | | | | | | |
Collapse
|
16
|
Wi S, Sun H, Oldfield E, Hong M. Solid-State NMR and Quantum Chemical Investigations of 13Cα Shielding Tensor Magnitudes and Orientations in Peptides: Determining φ and ψ Torsion Angles. J Am Chem Soc 2005; 127:6451-8. [PMID: 15853353 DOI: 10.1021/ja042935b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the experimental determination of the (13)C(alpha) chemical shift tensors of Ala, Leu, Val, Phe, and Met in a number of polycrystalline peptides with known X-ray or de novo solid-state NMR structures. The 700 Hz dipolar coupling between (13)C(alpha) and its directly bonded (14)N permits extraction of both the magnitude and the orientation of the shielding tensor with respect to the C(alpha)-N bond vector. The chemical shift anisotropy (CSA) is recoupled under magic-angle spinning using the SUPER technique (Liu et al., J. Magn. Reson. 2002, 155, 15-28) to yield quasi-static chemical shift powder patterns. The tensor orientation is extracted from the (13)C-(14)N dipolar modulation of the powder line shapes. The magnitudes and orientations of the experimental (13)C(alpha) chemical shift tensors are found to be in good accord with those predicted from quantum chemical calculations. Using these principal values and orientations, supplemented with previously measured tensor orientations from (13)C-(15)N and (13)C-(1)H dipolar experiments, we are able to predict the (phi, psi, chi(1)) angles of Ala and Val within 5.8 degrees of the crystallographic values. This opens up a route to accurate determination of torsion angles in proteins based on shielding tensor magnitude and orientation information using labeled compounds, as well as the structure elucidation of noncrystalline organic compounds using natural abundance (13)C NMR techniques.
Collapse
Affiliation(s)
- Sungsool Wi
- Department of Chemistry, Iowa State University, Gilman Hall 0108, Ames, Iowa 50011, USA
| | | | | | | |
Collapse
|
17
|
Jang J, Lee KJ, Kim Y. Fabrication of polyimide nanotubes and carbon nanotubes containing magnetic iron oxide in confinement. Chem Commun (Camb) 2005:3847-9. [PMID: 16041437 DOI: 10.1039/b503831f] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyimide nanotubes with tunable wall thickness were fabricated by a precursor impregnation method using an AAO template, and carbon nanotubes containing magnetic iron oxide were obtained using ferric chloride-embedded polyimide precursor by a carbonization process.
Collapse
Affiliation(s)
- Jyongsik Jang
- Hyperstructured Organic Materials Research Center and School of Chemical Engineering, Seoul National University, Seoul 151-742, Korea.
| | | | | |
Collapse
|
18
|
Yan XB, Xu T, Xu S, Chen G, Xue QJ, Yang SR. Polymer-assisted synthesis of aligned amorphous silicon nanowires and their core/shell structures with Au nanoparticles. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.08.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
19
|
Bianconi PA, Joray SJ, Aldrich BL, Sumranjit J, Duffy DJ, Long DP, Lazorcik JL, Raboin L, Kearns JK, Smulligan SL, Babyak JM. Diamond and Diamond-Like Carbon from a Preceramic Polymer. J Am Chem Soc 2004; 126:3191-202. [PMID: 15012149 DOI: 10.1021/ja039254l] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of poly(hydridocarbyne), one of a class of carbon-based random network polymers and a structural isomer of polyacetlyene, is reported. The network backbone of this polymer is primarily composed of tetrahedrally hybridized carbon atoms, each bearing one hydride substituent and linked via three carbon-carbon single bonds into a three-dimensional random network of fused rings. This atomic-level carbon network backbone confers unusual properties on the polymer, including facile thermal decomposition to form diamond or diamond-like carbon high-quality films at atmospheric pressure, by direct deposition or by chemical vapor deposition (CVD), without the use of hydrogen or any other reagent.
Collapse
Affiliation(s)
- Patricia A Bianconi
- Department of Chemistry and Polymer Science, University of Massachusetts at Amherst, Amherst, Massachusetts 01003, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Luca S, Heise H, Baldus M. High-resolution solid-state NMR applied to polypeptides and membrane proteins. Acc Chem Res 2003; 36:858-65. [PMID: 14622033 DOI: 10.1021/ar020232y] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Solid-state NMR provides unique possibilities to study insoluble or noncrystalline molecules at the atomic level. High-resolution conditions can be established by employing magic-angle spinning at ultrahigh magnetic fields. We discuss NMR methods that make use of these experimental improvements and allow for the study of multiply or uniformly [(13)C,(15)N]-labeled polypeptides and proteins. Recent biophysical applications are reviewed.
Collapse
Affiliation(s)
- Sorin Luca
- Department of NMR-Based Structural Biology, Solid-state NMR, Max-Planck-Institute for Biophysical Chemistry, 37077 Göttingen, Germany
| | | | | |
Collapse
|
21
|
Ma M, Shi G, Xi C. Polymer precursor to diamondlike carbon prepared by the polymerization of ?,?,?-trichlorotoluene and acetonitrile. J Appl Polym Sci 2003. [DOI: 10.1002/app.12084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
22
|
Yao X, Hong M. Determination of calpha chemical shift tensor orientation in peptides by dipolar-modulated chemical shift recoupling NMR spectroscopy. J Am Chem Soc 2002; 124:2730-8. [PMID: 11890824 DOI: 10.1021/ja017137p] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a new method for determining the orientation of chemical shift tensors in polycrystalline solids with site resolution and demonstrate its application to the determination of the Calpha chemical shift tensor orientation in a model peptide with beta-sheet torsion angles. The tensor orientation is obtained under magic angle spinning by modulating a recoupled chemical shift anisotropy (CSA) pattern with various dipolar couplings. These dipolar-modulated chemical shift patterns constitute the indirect dimension of a 2D spectrum and are resolved according to the isotropic chemical shifts of different sites in the direct dimension. These dipolar-modulated CSA spectra are equivalent to the projection of a 2D static separated-local-field spectrum onto its chemical shift dimension, except that its dipolar dimension is multiplied with a modulation function. Both (13)C-(1)H and (13)C-(15)N dipolar couplings can modulate the CSA spectra of the Calpha site in an amino acid and yield the relative orientations of the chemical shift principal axes to the C-H and C-N bonds. We demonstrate the C-H and C-N modulated CSA experiments on methylmalonic acid and N-tBoc-glycine, respectively. The MAS results agree well with the results of the 2D separated-local-field spectra, thus confirming the validity of this MAS dipolar-modulation approach. Using this technique, we measured the Val Calpha tensor orientation in N-acetylvaline, which has beta-sheet torsion angles. The sigma(11) axis is oriented at 158 degrees (or 22 degrees) from the C-H bond, while the sigma(22) axis is tilted by 144 degrees (or 36 degrees) from the C-N bond. Both the orientations and the magnitude of this chemical shift tensor are in excellent agreement with quantum chemical calculations.
Collapse
Affiliation(s)
- Xiaolan Yao
- Department of Chemistry, Iowa State University, Ames, IA 50011, USA
| | | |
Collapse
|
23
|
Sanders LK, Oldfield E. Theoretical Investigation of 19F NMR Chemical Shielding Tensors in Fluorobenzenes. J Phys Chem A 2001. [DOI: 10.1021/jp011114f] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lori K. Sanders
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Eric Oldfield
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| |
Collapse
|
24
|
Case DA, Scheurer C, Brüschweiler R. Static and Dynamic Effects on Vicinal Scalar J Couplings in Proteins and Peptides: A MD/DFT Analysis. J Am Chem Soc 2000. [DOI: 10.1021/ja001798p] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David A. Case
- Contribution from the Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, and Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, Massachusetts 01610
| | - Christoph Scheurer
- Contribution from the Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, and Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, Massachusetts 01610
| | - Rafael Brüschweiler
- Contribution from the Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, and Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, Worcester, Massachusetts 01610
| |
Collapse
|
25
|
|
26
|
Arnold WD, Sanders LK, McMahon MT, Volkov AV, Wu G, Coppens P, Wilson SR, Godbout N, Oldfield E. Experimental, Hartree−Fock, and Density Functional Theory Investigations of the Charge Density, Dipole Moment, Electrostatic Potential, and Electric Field Gradients inl-Asparagine Monohydrate. J Am Chem Soc 2000. [DOI: 10.1021/ja000386d] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
27
|
MacLachlan MJ, Ginzburg M, Coombs N, Coyle TW, Raju NP, Greedan JE, Ozin GA, Manners I. Shaped ceramics with tunable magnetic properties from metal-containing polymers. Science 2000; 287:1460-3. [PMID: 10688788 DOI: 10.1126/science.287.5457.1460] [Citation(s) in RCA: 240] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A shaped, magnetic ceramic was obtained from a metal-containing polymer network, which was synthesized by thermal polymerization of a metal-containing organosilicon monomer. Pyrolysis of a cylinder, shape, or film of the metal-containing polymer precursor produced a low-density magnetic ceramic replica in high yield. The magnetic properties of the shaped ceramic could be tuned between a superparamagnetic and ferromagnetic state by controlling the pyrolysis conditions, with the particular state dependent on the size of iron nanoclusters homogeneously dispersed throughout the carbosilane-graphitic-silicon nitride matrix. These results indicate that cross-linked metal-containing polymers may be useful precursors to ceramic monoliths with tailorable magnetic properties.
Collapse
Affiliation(s)
- MJ MacLachlan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada. Department of Metallurgy and Materials Science and Department of Chemical Engineering and Applied Chemistry, University of Toronto, 184 College
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Scheurer C, Skrynnikov NR, Lienin SF, Straus SK, Brüschweiler R, Ernst RR. Effects of Dynamics and Environment on 15N Chemical Shielding Anisotropy in Proteins. A Combination of Density Functional Theory, Molecular Dynamics Simulation, and NMR Relaxation. J Am Chem Soc 1999. [DOI: 10.1021/ja984159b] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Scheurer
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| | - N. R. Skrynnikov
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| | - S. F. Lienin
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| | - S. K. Straus
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| | - R. Brüschweiler
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| | - R. R. Ernst
- Contribution from the Laboratorium für Physikalische Chemie, ETH Zentrum, 8092 Zürich, Switzerland, and Carlson School of Chemistry, Clark University, Worcester, Massachusetts 01610
| |
Collapse
|
29
|
McMahon MT, deDios AC, Godbout N, Salzmann R, Laws DD, Le H, Havlin RH, Oldfield E. An Experimental and Quantum Chemical Investigation of CO Binding to Heme Proteins and Model Systems: A Unified Model Based on 13C, 17O, and 57Fe Nuclear Magnetic Resonance and 57Fe Mössbauer and Infrared Spectroscopies. J Am Chem Soc 1998. [DOI: 10.1021/ja973272j] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael T. McMahon
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Angel C. deDios
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Nathalie Godbout
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Renzo Salzmann
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - David D. Laws
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Hongbiao Le
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Robert H. Havlin
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| | - Eric Oldfield
- Contribution from the Department of Chemistry, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801
| |
Collapse
|
30
|
Affiliation(s)
- Ladislav Kavan
- J. Heyrovský Institute of Physical Chemistry, Dolejskova 3, CZ-182 23 Prague 8, Czech Republic
| |
Collapse
|
31
|
|
32
|
Formation of a new cubic form of carbon from carbyne. Russ Chem Bull 1996. [DOI: 10.1007/bf01434197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
33
|
Bianconi PA. Response
: Diamond-Like Carbon Bonds. Science 1994. [DOI: 10.1126/science.266.5188.1256.b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Patricia A. Bianconi
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
| |
Collapse
|
34
|
Bacsa WS. Diamond-Like Carbon Bonds. Science 1994. [DOI: 10.1126/science.266.5188.1256.a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- W. S. Bacsa
- Institut de Physique Experimentale, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| |
Collapse
|
35
|
|