Sorry for the big delay, but I did not receive your reply. I had to go to
the Yahoo web page.
What I was asking was related to my observations of C2H4
ro-vibrational "overtone" absorption lines at ~846 nm: 18 lines so far,
from 844.421 to 852.391 nm @294K, with maximum absorption peak: ~1E-24
cm-2/molecule.
I checked their wavelengths by comparing them to iodine reference
absorption lines.
Best regards.
Lucchesini
===
Your message:
From: "Christian A. Romero" <artimanha@z...>
Date: Fri Jan 17, 2003 11:50 pm
Subject: Re: [spectroscopy] Digest Number 97

C2H4 Lines:
846 nm is a very low wavelength in the IR spectrum, that implies a high
energy. At this energy it is improbable obtain a molecular vibration because
of the force constant of the molecule.
I recomend you to calculate the vibrational energy of the vibrational mode
(or the combination of the vibrational modes).
Best regards
Christian Romero
St. Andrews Mayor University
Laboratory of Environmental Quality
----- Original Message -----
From: <spectroscopy@yahoogroups.com>
To: <spectroscopy@yahoogroups.com>
Sent: Friday, January 17, 2003 7:20 AM
Subject: [spectroscopy] Digest Number 97


> There is 1 message in this issue.
>
> Topics in this digest:
>
> 1. Re: C2H4 lines at 846 nm.
> From: "Xavier <xduten@y...>" <xduten@y...>
>
> ________________________________________________________________________
>
> Message: 1
> Date: Thu, 16 Jan 2003 15:36:04 -0000
> From: "Xavier <xduten@y...>" <xduten@y...>
> Subject: Re: C2H4 lines at 846 nm.
>
> I'm interested too !!
>
> --- In spectroscopy@yahoogroups.com, Alessandro Lucchesini
> <alex@i...> wrote:
> > I am wondering if anyone has never observed and measured the ethylene
> > overtones at around 846 nm.
> > I am looking for an atlas of C2H4 lines in this range (3rd overtone).
> > Alex
===