On Mon, Mar 9, 2009 at 6:58 PM, Pierre-Yves Savard <[email protected]> wrote: > Hi, > > I would like to know if the Rex values given in the xml result file of > relax 1.3 are expressed in s-1 or if it is the result of the following > formula: Rex/(2 * π * freq)**2?
The value is in 1/seconds (note this is actually rad/s but the rad is hidden - hence why you don't call it Hertz). The field strength is also noted in the results file, indicating that it is not the field-strength free value of sigma_ex = Rex/omega**2. > The values I get (~3E-19) seem to come from the scaling equation, but in > the result file, these values are associated with a field strength: > > <rex desc="Chemical exchange relaxation (800 MHz)" > ieee_754_byte_array="[197, 23, 28, 207, 173, 151, 0, 60]"> > 1.124351254e-19 > > Maybe the field strength associated with the values in the result file > are remnants of relax 1,.2, where Rex were given in s-1... No, I would call that no very much chemical exchange at all. Model selection should get rid of this model - unless of course the equivalent model without Rex failed! Regards, Edward _______________________________________________ relax (http://nmr-relax.com) This is the relax-users mailing list [email protected] To unsubscribe from this list, get a password reminder, or change your subscription options, visit the list information page at https://mail.gna.org/listinfo/relax-users
