Interconversion of boranes—III. An analysis of the “first stable intermediate” problem

1960 ◽  
Vol 15 (1-2) ◽  
pp. 190-193 ◽  
Author(s):  
Riley Schaeffer
Keyword(s):  
Stable Intermediate ◽  
Intermediate Problem

Oxidation scheme of symmetrically disulphonated naphthidines with cerium(IV) sulphate

1981 ◽  
Vol 46 (3) ◽  
pp. 561-572 ◽  
Author(s):  
Karel Komers
Keyword(s):  
Sulphuric Acid ◽  
Rate Constants ◽  
Oxidation Product ◽  
Side Reaction ◽  
Reaction Scheme ◽  
Second Order ◽  
Intermediate Products ◽  
Stable Intermediate ◽  
Starting Compound ◽  
Oxidation Agent

The author derived theoretical dependences of preasymptotic slopes of the currentless E-t curves (potential of an indicator redox electrode against time) on the number of equivalents, n, of added oxidation agent, assuming a reaction scheme of two consecutive concurrent second-order reactions involving the formation of intermediate products ( a side reaction of the starting compound with the final oxidation product leading to an adduct, which undergoes consecutive bimolecular oxidations leading again to the final product). The dependences enable to determine the type of the relatively stable intermediate products and the ratios of the rate constants. The theory was applied to the oxidation of four symmetrically disulphonated naphthidines with cerium(IV) sulphate in aqueous sulphuric acid and the results were substantiated spectrophotometrically

Concentration dependent supramolecular interconversions of triptycene-based cubic, prismatic, and tetrahedral structures

2018 ◽  
Vol 47 (40) ◽  
pp. 14189-14194 ◽  
Author(s):  
Sourav Chakraborty ◽  
Kevin J. Endres ◽  
Ranajit Bera ◽  
Lukasz Wojtas ◽  
Charles N. Moorefield ◽  
...  
Keyword(s):  
Fusion Process ◽  
Stable Intermediate ◽  
Insight Into

New insight into the molecular fission–fusion process is obtained with the characterization of a stable intermediate prismatic cage.

Topological Control of Water Reactivity on Glass Surfaces: Evidence of a Chemically Stable Intermediate Phase

2019 ◽  
Vol 10 (14) ◽  
pp. 3955-3960 ◽  
Author(s):  
Collin J. Wilkinson ◽  
Karan Doss ◽  
Seung Ho Hahn ◽  
Nathan Keilbart ◽  
Arron R. Potter ◽  
...  
Keyword(s):  
Intermediate Phase ◽  
Stable Intermediate ◽  
Glass Surfaces

Shelf stable intermediate moisture pineapple (Ananas comosus) slices using hurdle technology

LWT ◽  
2009 ◽  
Vol 42 (10) ◽  
pp. 1681-1687 ◽  
Author(s):  
Sudhanshu Saxena ◽  
B.B. Mishra ◽  
Ramesh Chander ◽  
Arun Sharma
Keyword(s):  
Ananas Comosus ◽  
Hurdle Technology ◽  
Stable Intermediate ◽  
Shelf Stable

scholarly journals Laue diffraction as a tool in dynamic studies: hydrolysis of a transiently stable intermediate in catalysis by trypsin

1992 ◽  
Vol 340 (1657) ◽  
pp. 285-300 ◽  
Keyword(s):  
Careful Analysis ◽  
Crystal Quality ◽  
Laue Diffraction ◽  
X Ray ◽  
Multiple Exposures ◽  
Dynamic Studies ◽  
Stable Intermediate ◽  
Structure Determinations ◽  
Ph Jump ◽  
Hydrolysis Of

A transiently stable intermediate in trypsin catalysis, guanidinobenzoyl-Ser-195 trypsin, can be trapped and then released by control of the pH in crystals of the enzyme. This effect has been investigated by static and dynamic white-beam Laue crystallography. Comparison of structures determined before and immediately after a pH jump reveals the nature of concerted changes that accompany activation of the enzyme. Careful analysis of the results of several structure determinations gives information about the reliability of Laue results in general. A study of multiple exposures taken under differing conditions of beam intensity, crystal quality, and temperature revealed information about ways to control damage of specimens by the X-ray beam.

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