The Experts below are selected from a list of 2979 Experts worldwide ranked by ideXlab platform
Hideyuki Kihara - One of the best experts on this subject based on the ideXlab platform.
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Static Electricity‐Responsive Supramolecular Assembly
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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Static Electricity-Responsive Supramolecular Assembly.
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:: Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
Hirokuni Jintoku - One of the best experts on this subject based on the ideXlab platform.
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Static Electricity‐Responsive Supramolecular Assembly
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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Static Electricity-Responsive Supramolecular Assembly.
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:: Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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molecular organogel forming Porphyrin Derivative with hydrophobic l glutamide
Tetrahedron Letters, 2008Co-Authors: Hirokuni Jintoku, Takashi Sagawa, Tsuyoshi Sawada, Makoto Takafuji, Hiroshi Hachisako, Hirotaka IharaAbstract:Abstract An l -glutamide-functionalized tetraphenylPorphyrin Derivative has been newly synthesized. This can dissolve in various organic solvents to form nanofibrillar aggregates with both right-handed and left-handed chiral stacking structures among the Porphyrin rings. It is also discussed on thermotropic and lyotropic phase transitions between gel and sol states.
Hirotaka Ihara - One of the best experts on this subject based on the ideXlab platform.
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Static Electricity‐Responsive Supramolecular Assembly
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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Static Electricity-Responsive Supramolecular Assembly.
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:: Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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molecular organogel forming Porphyrin Derivative with hydrophobic l glutamide
Tetrahedron Letters, 2008Co-Authors: Hirokuni Jintoku, Takashi Sagawa, Tsuyoshi Sawada, Makoto Takafuji, Hiroshi Hachisako, Hirotaka IharaAbstract:Abstract An l -glutamide-functionalized tetraphenylPorphyrin Derivative has been newly synthesized. This can dissolve in various organic solvents to form nanofibrillar aggregates with both right-handed and left-handed chiral stacking structures among the Porphyrin rings. It is also discussed on thermotropic and lyotropic phase transitions between gel and sol states.
Qingdao Zeng - One of the best experts on this subject based on the ideXlab platform.
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Self-Assembly of a Flexible Porphyrin Derivative Containing Tetra Isophthalic Acids and Host–Guest Interaction at the Liquid/Solid Interface
The Journal of Physical Chemistry C, 2020Co-Authors: Siqi Zhang, Bo Liu, Wubiao Duan, Fengying Zhao, Qingdao ZengAbstract:This paper investigates the self-assembly of a flexible Porphyrin Derivative called 1,3-isophthalic acid-5-ether-4-tetraphenyl Porphyrin at the interface of 1-heptanoic acid/highly oriented pyrolyt...
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self assembly of a flexible Porphyrin Derivative containing tetra isophthalic acids and host guest interaction at the liquid solid interface
Journal of Physical Chemistry C, 2020Co-Authors: Qingdao Zeng, Siqi Zhang, Bo Liu, Wubiao Duan, Fengying ZhaoAbstract:This paper investigates the self-assembly of a flexible Porphyrin Derivative called 1,3-isophthalic acid-5-ether-4-tetraphenyl Porphyrin at the interface of 1-heptanoic acid/highly oriented pyrolyt...
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self assembly and external modulation of a flexible Porphyrin Derivative on highly oriented pyrolytic graphite
Langmuir, 2017Co-Authors: Jingfei Hou, Hongliang Dai, Zengqi Zhang, Ke Deng, Qingdao ZengAbstract:With the aid of scanning tunneling microscopy, we have examined the two-dimensional hydrogen-bonded networks of carboxyl-functionalized Porphyrin Derivative H2TCPp molecules at the heptanoic acid/HOPG interface. Moreover, we have successfully modulated the self-assembly structure of H2TCPp by introducing 1,2-di(4-pyridyl)ethylene molecules into the assembled system. By performing density functional theory calculations, we also revealed the formation mechanisms of the different assemblies and the modulation process. Comparing the self-assembly structures at the liquid/solid interface with those in bulk crystals, we have obtained deep insight into the differences in H2TCPp assemblies between 2D and 3D networks. Furthermore, this research is expected to deepen our understanding of on-surface phenomena and to provide a feasible process toward 2D assembly regulation.
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Self-Assembly and External Modulation of a Flexible Porphyrin Derivative on Highly Oriented Pyrolytic Graphite
2016Co-Authors: Jingfei Hou, Hongliang Dai, Zengqi Zhang, Ke Deng, Qingdao ZengAbstract:With the aid of scanning tunneling microscopy, we have examined the two-dimensional hydrogen-bonded networks of carboxyl-functionalized Porphyrin Derivative H2TCPp molecules at the heptanoic acid/HOPG interface. Moreover, we have successfully modulated the self-assembly structure of H2TCPp by introducing 1,2-di(4-pyridyl)ethylene molecules into the assembled system. By performing density functional theory calculations, we also revealed the formation mechanisms of the different assemblies and the modulation process. Comparing the self-assembly structures at the liquid/solid interface with those in bulk crystals, we have obtained deep insight into the differences in H2TCPp assemblies between 2D and 3D networks. Furthermore, this research is expected to deepen our understanding of on-surface phenomena and to provide a feasible process toward 2D assembly regulation
Yoko Matsuzawa - One of the best experts on this subject based on the ideXlab platform.
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Static Electricity‐Responsive Supramolecular Assembly
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.
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Static Electricity-Responsive Supramolecular Assembly.
Chemistry: A European Journal, 2017Co-Authors: Hirokuni Jintoku, Yoko Matsuzawa, Hirotaka Ihara, Hideyuki KiharaAbstract:: Stimuli-responsive materials can convert between molecular scale and macroscopic scale phenomena. Two macroscopic static electricity-responsive phenomena based on nanoscale supramolecular assemblies of a zinc Porphyrin Derivative are presented. One example involves the movement of supramolecular assemblies in response to static electricity. The assembly of a pyridine (Py) complex of the above-mentioned Derivative in cyclohexane is drawn to a positively charged material, whereas the assembly of a 3,5-dimethylpyridine complex is drawn to a negatively charged material. The second phenomenon involves the movement of a non-polar solvent in response to static electrical stimulation. A cyclohexane solution containing a small quantity of the Py-complexed assembly exhibited a strong movement response towards negatively charged materials. Based on spectroscopic measurements and electron microscope observations, it was revealed that the assembled formation generates the observed response to static electricity.