Apr 14, 2013 11:30
11 yrs ago
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French term
Tunisia
massif centré
French to English
Science
Chemistry; Chem Sci/Eng
non-stick coating for a p
Hello,
"présence d'un massif centré à 4,5 ppm, attribué à CHI et des quadruplet et triplet vers 3,8 ppm et 1,2 ppm (respectivement attribués à OCH 2 et CH 3 ) ;"
this comes under heading "Fonctionnalisation de l'oligomère du VDF "
Thank you
"présence d'un massif centré à 4,5 ppm, attribué à CHI et des quadruplet et triplet vers 3,8 ppm et 1,2 ppm (respectivement attribués à OCH 2 et CH 3 ) ;"
this comes under heading "Fonctionnalisation de l'oligomère du VDF "
Thank you
Proposed translations
(English)
| 3 +2 | broad peak cetered at |
Marco Solinas
|
| 5 | (broad) multiple peak with center at |
abe(L)solano
|
Proposed translations
+2
1 hr
Marco Solinas
Native in English
Specializes in field
Accurate, professional translations
Native in: English 
, Italian
Works in: Italian to English, French to English
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Selected
broad peak cetered at
This is the description of an NMR spectrum.
"broad band centered at" would also work.
"broad band centered at" would also work.
Note from asker:
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4 KudoZ points awarded for this answer.
Comment: "Selected automatically based on peer agreement."
1 hr
abe(L)solano
France
France
Specializes in field
France
PhD & Pharmacist. Life Sciences.
Native in: Spanish (Variants: Standard-Spain, Latin American) 
Works in: English to Spanish, French to Spanish
Related KudoZ points
:
1
French term (edited):
massif centré à
(broad) multiple peak with center at
It's IR spectroscopy, they are talking about the signal that is produced by the CHI substituent group. Instead of a single peak, you have several peaks for this group, that´s why they are calling it "a massif" in french. The apparent center of the peak group is located at 4,5 ppm.
I think you can also use "peak group", as term, but I think "multiple peak" is better.
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Note added at 22 hrs (2013-04-15 09:58:52 GMT)
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Sorry, Marco is right, it´s NMR spectroscopy and not IR as I said. Nevertheless, in the text they are describing multiple signals (massif, quadruplet, triplet) and I believe CHI is cyclohexyl isocyanate, which is a ring and therefore, it gives a multiple pattern, not one broad band only (refered as "broad singlet" in NMR).
Actually, a better term is "multiplet" as in
http://www.chem.wisc.edu/areas/reich/handouts/chem343-345/34... (nice images to illustrate this)
http://www.chem.ucla.edu/harding/30C/30C_w03/NMRsupp.pdf
examples
"In addition there may be more lines than that predicted by the multiplet rules"
"harder to make a correct assignment as the number of protons in a multiplet..."
I think you can also use "peak group", as term, but I think "multiple peak" is better.
--------------------------------------------------
Note added at 22 hrs (2013-04-15 09:58:52 GMT)
--------------------------------------------------
Sorry, Marco is right, it´s NMR spectroscopy and not IR as I said. Nevertheless, in the text they are describing multiple signals (massif, quadruplet, triplet) and I believe CHI is cyclohexyl isocyanate, which is a ring and therefore, it gives a multiple pattern, not one broad band only (refered as "broad singlet" in NMR).
Actually, a better term is "multiplet" as in
http://www.chem.wisc.edu/areas/reich/handouts/chem343-345/34... (nice images to illustrate this)
http://www.chem.ucla.edu/harding/30C/30C_w03/NMRsupp.pdf
examples
"In addition there may be more lines than that predicted by the multiplet rules"
"harder to make a correct assignment as the number of protons in a multiplet..."
Example sentence:
we assign the <b>multiple peak</b> at δ=4.12–4.18 ppm to the methylene protons bonded with carbonyl groups becaus
The 1 H NMR spectrum showed a <b>broad multiple peak</b>from 6.8 to 7.6 ppm
Note from asker:
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