Absolute Asymmetric Phthalide Synthesis via the Solid-State Photoreaction ofN,N-Disubstituted 2-Benzoylbenzamides Involving a Radical Pair Intermediate

2000 ◽  
Vol 122 (41) ◽  
pp. 10210-10211 ◽  
Author(s):  
Masami Sakamoto ◽  
Norio Sekine ◽  
Hiroko Miyoshi ◽  
Takashi Mino ◽  
Tsutomu Fujita
Keyword(s):  
Solid State ◽  
Radical Pair

Dependence of the yield of a radical-pair reaction in the solid state on orientation in a magnetic field

1982 ◽  
Vol 104 (9) ◽  
pp. 2674-2675 ◽  
Author(s):  
Steven G. Boxer ◽  
Christopher E. D. Chidsey ◽  
Mark G. Roelofs
Keyword(s):  
Magnetic Field ◽  
Solid State ◽  
Radical Pair

ChemInform Abstract: Absolute Asymmetric Phthalide Synthesis via the Solid-State Photoreaction of N,N-Disubstituted 2-Benzoylbenzamides Involving a Radical Pair Intermediate.

ChemInform ◽  
2010 ◽  
Vol 32 (7) ◽  
pp. no-no
Author(s):  
Masami Sakamoto ◽  
Norio Sekine ◽  
Hiroko Miyoshi ◽  
Takashi Mino ◽  
Tsutomu Fujita
Keyword(s):  
Solid State ◽  
Radical Pair

Solid-state photochemical generation of a very stable phenoxyl-phenoxyl radical pair

1991 ◽  
Vol 113 (16) ◽  
pp. 6329-6330 ◽  
Author(s):  
David A. Modarelli ◽  
Paul M. Lahti ◽  
Clifford George
Keyword(s):  
Solid State ◽  
Radical Pair ◽  
Phenoxyl Radical ◽  
Photochemical Generation ◽  
Stable Phenoxyl

scholarly journals Photoinduced Solid State Conversion of a Radical σ-Dimer to a π-Radical Pair

2013 ◽  
Vol 135 (42) ◽  
pp. 15674-15677 ◽  
Author(s):  
Hoa Phan ◽  
Kristina Lekin ◽  
Stephen M. Winter ◽  
Richard T. Oakley ◽  
Michael Shatruk
Keyword(s):  
Solid State ◽  
Radical Pair

scholarly journals Photo-CIDNP in the Reaction Center of the Diatom Cyclotella meneghiniana Observed by 13C MAS NMR

2017 ◽  
Vol 231 (2) ◽  
Author(s):  
Jeremias C. Zill ◽  
Marcel Kansy ◽  
Reimund Goss ◽  
Lisa Köhler ◽  
A. Alia ◽  
...  
Keyword(s):  
Solid State ◽  
Reaction Center ◽  
Radical Pair ◽  
Reaction Centers ◽  
Mas Nmr ◽  
Photosynthetic Reaction Centers ◽  
Functional Information ◽  
13C Mas Nmr ◽  
Sensitivity And Selectivity ◽  
Insight Into

AbstractPhoto-CIDNP MAS NMR presents a unique tool to obtain insight into the photosynthetic reaction centers (RCs) of bacteria and plants. Using the dramatic enhancement of sensitivity and selectivity of the solid-state photo-CIDNP effect, structural as well as functional information can be obtained from the cofactor molecules forming a light-induced spin-correlated radical pair (SCRP) in a given reaction center. Here we demonstrate that the effect can be observed in a further species, which belongs neither to the plant nor the bacteria kingdom.

Preparation of Thin Cadmium Telluride Samples for Electron Microscope Studies

1974 ◽  
Vol 32 ◽  
pp. 548-549
Author(s):  
T. J. Magee ◽  
J. Peng ◽  
J. Bean
Keyword(s):  
Electron Microscope ◽  
Sulfuric Acid ◽  
Solid State ◽  
Sample Preparation ◽  
Cadmium Telluride ◽  
Potassium Dichromate ◽  
Optical Components ◽  
The Past ◽  
Solid State Devices

Cadmium telluride has become increasingly important in a number of technological applications, particularly in the area of laser-optical components and solid state devices, Microstructural characterizations of the material have in the past been somewhat limited because of the lack of suitable sample preparation and thinning techniques. Utilizing a modified jet thinning apparatus and a potassium dichromate-sulfuric acid thinning solution, a procedure has now been developed for obtaining thin contamination-free samples for TEM examination.

The Collagenic Molecular Structural Unit of Solid State Complexes

1971 ◽  
Vol 29 ◽  
pp. 478-479
Author(s):  
Kenneth M. Richter ◽  
John A. Schilling
Keyword(s):  
Molecular Weight ◽  
Solid State ◽  
Structural Unit ◽  
X Ray Diffraction ◽  
X Ray ◽  
Naoh Treatment

The structural unit of solid state collagen complexes has been reported by Porter and Vanamee via EM and by Cowan, North and Randall via x-ray diffraction to be an ellipsoidal unit of 210-270 A. length by 50-100 A. diameter. It subsequently was independently demonstrated by us in dog tendon, dermis, and induced complexes. Its detailed morphologic, dimensional and molecular weight (MW) aspects have now been determined. It is pear-shaped in long profile with m diameters of 57 and 108 A. and m length of 263 A. (Fig. 1, tendon, KMnO4 fixation, Na-tungstate; Fig. 2a, schematic of unit in long, C, and x-sectional profiles of its thin, xB, and bulbous, xA portions; Fig. 2b, tendon essentially unmodified by ether and 0.4 N NaOH treatment, Na-tungstate). The unit consists of a uniquely coild cable, c, of ṁ 22.9 A. diameter and length of 2580-3316 A. The cable consists of three 2nd-strands, s, each of m 10.6 A.

Structure-property relations of liquid crystalline polymers

1987 ◽  
Vol 45 ◽  
pp. 460-463
Author(s):  
Linda C. Sawyer
Keyword(s):  
Solid State ◽  
Liquid Crystalline ◽  
Structural Model ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Mechanical Anisotropy ◽  
Structure Property ◽  
Preparation Methods ◽  
Crystalline Polymers ◽  
Extended Chain

Recent liquid crystalline polymer (LCP) research has sought to define structure-property relationships of these complex new materials. The two major types of LCPs, thermotropic and lyotropic LCPs, both exhibit effects of process history on the microstructure frozen into the solid state. The high mechanical anisotropy of the molecules favors formation of complex structures. Microscopy has been used to develop an understanding of these microstructures and to describe them in a fundamental structural model. Preparation methods used include microtomy, etching, fracture and sonication for study by optical and electron microscopy techniques, which have been described for polymers. The model accounts for the macrostructures and microstructures observed in highly oriented fibers and films.Rod-like liquid crystalline polymers produce oriented materials because they have extended chain structures in the solid state. These polymers have found application as high modulus fibers and films with unique properties due to the formation of ordered solutions (lyotropic) or melts (thermotropic) which transform easily into highly oriented, extended chain structures in the solid state.

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