Showing posts with label synthesized. Show all posts
Showing posts with label synthesized. Show all posts

Wednesday, 9 September 2020

Recent Perspectives: Electromagnetic Particles | Chapter 14 | New Insights into Physical Science Vol. 5

 

The covariant derivative of the 4-components electromagnetic potential in a flat Minkowski spacetime
is split into its antisymmetric and symmetric parts. While the former is well known to describe the
electromagnetic field, we show that the latter describes the associated particles. When symmetry
principles are applied to the invariants in operations of the Poincar group, one finds equations which
describe the structure of the particles. Both parts of the tensor unify the concept of matter-wave
duality. Charge and mass are shown to be associated to the potential.

Author(s) Details

G. M. Stephan ´
University de Rennes, Unit 6082 associe au Centre National de la recherche scientifique, 6, rue de Kerampont,
22305 Lannion, France. (Retired)

View Book :-
https://bp.bookpi.org/index.php/bpi/catalog/book/245

Tuesday, 28 July 2020

Synthesis of Some New Spiro β-lactams and Thiazolidinones Compounds Containing Sulfur Incorporating Quinon Compounds: Advanced Study | Chapter 4 | Current Research and Development in Chemistry Vol.3

Compounds 4 have been synthesized by cycloaddition reaction of, chloroacetyl chloride and
mercaptoacetic acid with the synthesized Shiff
,s bases 5a-c to afford new spiroβ-Lactam 6a-c and
spirothiazolidinone7a-c the cycloaddition were characterized by spectral data including HNMR,
13 CNMR, IR and elemental analysis.

Author(s) Details

N. A. A. ElKanzi
Department of Chemistry, College of Science, Jouf University, Sakaka 2014, Saudi Arabia and Department of Chemistry,
Faculty of Science, Aswan University, Aswan 81528, Egypt

View Book :-
http://bp.bookpi.org/index.php/bpi/catalog/book/217