relationship between molecular tumbling rate and T2 relaxation time

[Allan]

Sorry to post in such an old thread, but I'm also a little confused about T2 dependence on "molecular tumbling" / "correlation time".

I liked the explanation of die T2 dip regarding molecular tumbling here:
https://mri-q.com/why-is-t1--t2.html

However, while browsing through the site I discovered this page:
http://mriquestions.com/bo-effect-on-t1--t2.html
with a bump near Larmor frequency.
Is this an error?

Trying to clear things up, I checked the reference (Bloembergen et.al. 1947). Adding to my confusion, Figure 14 shows a saddle, but not really a dip near Larmor frequency for T2.

thanks and best wishes,
Allan