Follow-up Comment #41, sr #3124 (project relax): For a valuable discussion of parameter name of "R2_eff" please see: http://thread.gmane.org/gmane.science.nmr.relax.devel/5207 This calculation has been called either "R_2" or "R_eff" in the articles. A write up relax could be: "The effective transverse relaxation rate with exchange, defined as": R2 = R20 + Rex and R2 = R1rho /sin^2(theta) - R_1 / tan^2(theta)". _______________________________________________________ Reply to this item at: <http://gna.org/support/?3124> _______________________________________________ Message sent via/by Gna! http://gna.org/