MOTS EN ANGLAIS EN RAPPORT AVEC «CARBONIUM ION»
carbonium ion
carbonium
rearrangement
geometry
mechanism
carbenium
carbanion
formation
stability
chemistry
cation
that
pentavalent
carbon
atom
name
also
used
simplest
member
class
properly
called
methanium
where
five
valences
carbocations
chemguide
explanation
term
carbocation
including
relative
stabilities
different
kinds
chemical
encyclopedia
britannica
organic
molecules
positive
charges
localized
certain
prepared
such
iupac
book
should
great
care
since
several
incompatible
meanings
currently
acceptable
root
systematic
define
containing
positively
charged
more
from
answers
krbnm
which
coordination
oxford
dictionaries
british
world
meaning
pronunciation
example
sentences
reference
chemists
taught
predominantly
electronic
factors
whether
they
primary
secondary
tertiary
allylic
structure
refinement
TENDANCES D'USAGE DU TERME «CARBONIUM ION»
Le terme «carbonium ion» est très peu utilisé et occupe la place
153.469 de notre liste de termes les plus utilisés du
dictionnaire anglais.
FRÉQUENCE
Rarement utilisé
Sur la carte précédente est reflétée la fréquence d'utilisation du terme «carbonium ion» dans les différents pays.
Tendances de recherche principales et usages générales de
carbonium ion
Liste des principales recherches réalisées par les utilisateurs pour accéder à notre
dictionnaire anglais en ligne et des expressions les plus utilisées avec le mot «carbonium ion».
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «CARBONIUM ION»
Découvrez l'usage de
carbonium ion dans la sélection bibliographique suivante. Des livres en rapport avec
carbonium ion et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Organic Reaction Mechanisms: A Step by Step Approach, Second ...
Turning our attention from the leaving group to the carbon moiety, it is observed
that the structure of the resulting carbonium ion has a large effect upon the ease
of substitution. Suggest the relative stability of the carbonium ions, CH3'1', C2H5+
...
Michael Edenborough, 1998
2
Metal Complexes in Organic Chemistry
Nucleophilic attack by the aromatic substrate on the carbonium ion of the solvent-
separated ion-pair (X) is ruled out by product analysis. For example, in the
alkylation of monosubstituted benzenes with a series of alkyl halides RC1, RBr
and RI ...
Formation of the third most abundant product (XXXV) also apparr ently involves
the intermediate formation of carbonium ion (XXX) by way of the addition of the
tertiary carbonium ion to tert-butyl ethylene. The ion apparently undergoes the
shift ...
W. G. Frankenburg, Vasili Ilyich Komarewsky, Sir Eric Keightley Rideal, 1950
4
T.B. Of Organic Chemistry (M.E.)
They are formed by heterolytic bond fission. sp2 Hybridized :Z Carbonium ion
where Z is more electronegative than carbon. The positively charged carbon
atom in a carbonium ion uses sp2 hybrid orbitals to form three a bonds (Fig. 6.2).
5
Advanced Organic Chemistry
Arun Bahl. The positively charged carbon atom in a carbonium ion uses sp2
hybrid orbitals to form three σ bonds (Fig. 3.1). A vacantp orbital extends above
and below the plane of the σ bonds. This vacantp orbital makes the carbon atom
...
6
Petroleum Processing Handbook
Carbonium ions are extremely reactive and undergo a wide variety of reactions
according to specific rules regarding formation, rearrangement, and reaction. The
principal rules have been described by Voge [19] and are: 1. A carbonium ion ...
7
Electronics Engineering
H H H CH3 H-C+ CH3-C+ CH3-C+ CH3-C+ III I H H CH3 CH3 Methyl Ethyl
Isopropyl tert-Butyl carbonium ion carbonium ion carbonium ion carboniiim ion
The carbonium ions which are formed as reaction intermedites are very reactive.
TERMINOLOGY FOR A POSITIVELY CHARGED CARBON [C+] How are the
terms CARBOCATION, CARBONIUM ION, and CARBENIUM ION different if they
are? CARBONIUM ION: The suffix 'onium' is used for naming a cation formed by ...
BHUPINDER MEHTA, MANJU MEHTA, 2005
Therefore, any factor that tends to spread out the positive charge of the electron-
deficient carbon and distribute it over the rest of the ion must stabilize a
carbonium ion. Consider a substituent G, attached to an electron-deficient carbon
.
10
Objective Question Bank in Chemistry
The ionic intermediate carrying a positive charge at the central carbon atom is
known as carbonium ion. The ionic species in which central carbon atom is
negatively charged is known as carbanion. Carbonium ion and carbanion are
generally ...
3 ACTUALITÉS CONTENANT LE TERME «CARBONIUM ION»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
carbonium ion est employé dans le contexte des actualités suivantes.
2013 Nobel Prize In Chemistry
... folding of a simple protein, bovine pancreatic trypsin inhibitor, and the formation of a carbonium ion in the active site of the enzyme lysozyme. «The Biological SCENE, oct 13»
Confessions of a D Orbital
According to the textbook, “In Friedel-Crafts alkylation, the electrophile is typically a carbonium ion. It, too, is formed in an acid-base equilibrium, ... «PLoS Blogs, mai 13»
Total synthesis of a chlorosulpholipid cytotoxin associated with …
Inductive and participation effects in carbonium ion reactions in acetic, formic, and trifluoroacetic acid. J. Am. Chem. Soc. 89, 5902–5911 (1967) ... «Nature.com, janv 09»
