Water molecule: dextrorotatory or levorotatory?

[f4cvv]

I board a matter

A water molecule is such dextrorotatory or levorotatory?
I cross laevogyratory

* Laevogyratory: In chemistry, a molecule levorotatory ( "turning left" Latin laevus left) has the ability to deflect the polarization plane of polarized light to the left.
A levorotatory is also one of the two enantiomeric forms of a chiral molecule, the other being the dextrorotatory.
All amino acids of living beings are left-handed; so we are unable to assimilate dextrorotatory molecules.

[Christophe]

Certainly although I have trouble understanding the concept of G / D 3D ...

But what are you getting at?

[ThierrySan]

Chirality of molecules:
http://fr.wikipedia.org/wiki/Chiralit%C ... 8chimie%29

Therefore, one can say that a water molecule is not chiral. And if it is not chiral, it can not be levorotatory or dextrorotatory ...

no?!

[gegyx]

so we are unable to assimilate dextrorotatory molecules.

I doubt?
Is it an election-affirmation?
---
Yeah, the water molecule is symmetrical in a mirror, so no énantiomorphie ( that's Christophe)

[f4cvv]

so we are unable to assimilate dextrorotatory molecules.

that are not of me but of
http://fr.wikipedia.org/wiki

and where I am coming and understand more closely the water molecules ... notament in an assembly with a vortex.
http://quanthomme.free.fr/qhsuite/Reali ... ec2006.htm
http://ozons.eco.free.fr/vortex.html
http://vortex.francophone.free.fr/

[ThierrySan]

If it is to understand the vortex created by the weight of water when transferring from a bottle to the other, it is better to look on the side of the Force Coriollis.
Although this theory is currently controversial, it remains that it remains the basis of some roundabouts phenomena: cyclone vortex in the sinks ...

I'll put a little links:
http://fr.wikipedia.org/wiki/Force_de_Coriolis

[laurent.delaon]

Hello f4cvv,

A water molecule is such dextrorotatory or levorotatory?

If you are above the molecule that you watch and you see what turns right it is dextrorotatory; but on the other hand if you look at it from below, it becomes levorotatory ...
Amazing is not it?

[f4cvv]

-Lévogyre: In chemistry, a molecule levorotatory ( "turning left" Latin laevus left) has the ability to deflect the polarization plane of polarized light to the left.
A levorotatory is also one of the two enantiomeric forms of a chiral molecule, the other being the dextrorotatory.



-Dextrogyre: In chemistry, a dextrorotatory molecule ( "turning right", Latin dexter, right) has the ability to deflect the plane of polarization of polarized light to the right.
Dextrorotatory is also one of the two enantiomeric forms of a chiral molecule, the other being the levorotatory.

Enantiomers are images molecules from one another in a mirror but not superposable. Due to this asymmetry at the molecular level, the R and S forms of the molecule, a drug, for example, can have different physiological effects or even antagonistic.

The relationship between the biological activities of each pure stereoisomer and those of their mixtures are often very complex and their analysis requires extensive and detailed studies. However it happens that the two enantiomers have similar activities.

New techniques and methods for resolving the racemic mixtures appeared:

• Chemical methods: They use the diastereomers

• Biological Methods: Using enzymes that are extremely stereospecific compounds.

Currently, the resolution of the racemates obtained by conventional synthesis is one of the main routes to enantiomerically pure compounds. Almost 2 / 3 active chiral molecules derived from synthesis of duplication. Apart from the chemical methods of derivation and crystallization to separate the two enantiomers after their synthesis, or more chromatographic methods are used for the chiral separation of a wide variety of compounds.

The use of a column with chiral stationary phase or chiral additives in the mobile phase is a way more "elegant" Separation of enantiomers by diastereomeric compounds synthesis using an optically pure reagent.

The positions of the balance between the bound and unbound states are different for 2 enantiomers:

Cyclodextrins are used in enantiomeric separation by capillary electrophoresis and HPLC GC. They are also used in nuclear magnetic resonance as chiral auxiliaries for the determination of enantiomeric excess.

Enantiomer: The formation of inclusion complexes and its applications in chiral separation are put to use in the field but also in the chemical and food industries (the case of menthol, lemon balm).


-------- Extract from http://fr.wikipedia.org/wiki/Accueil



So laevogyratory Dextrorotatory are principally made on more complex molecules that H2o

thank you all

[ThierrySan]

f4cvv wrote:

I board a matter

A water molecule is such dextrorotatory or levorotatory?
I cross laevogyratory

ThierrySan wrote:

Chirality of molecules:
http://fr.wikipedia.org/wiki/Chiralit%C ... 8chimie%29

Therefore, one can say that a water molecule is not chiral. And if it is not chiral, it can not be levorotatory or dextrorotatory ...

Moreover, I can add that as the water molecule has a plane of symmetry, then it can be superimposed on its own reflection in a mirror.

However, if you want to talk about:

f4cvv wrote:

and where I am coming and understand more closely the water molecules ... notament in an assembly with a vortex.

ThierrySan wrote:

If it is to understand the vortex created by the weight of water when transferring from a bottle to the other, it is better to look on the side of the Force Coriollis.
Although this theory is currently controversial, it remains that it remains the basis of some roundabouts phenomena: cyclone vortex in the sinks ...

I'll put a little links:
http://fr.wikipedia.org/wiki/Force_de_Coriolis

Voili, voilou ... Is this helps you or not ?!

[the joint]

Which is great is that for normal people your discussion is incomprehensible! The key being that you successfully advance your chemilblique. hehehehehe for my part if I managed to turn my pantone it will already not bad. Good luck to all