Rotational relaxation time of the end-to-end vector, t
, vs. the center-of-mass diffusion coefficient D
for multi-bead particles of different sizes N. With HI the expected scaling of a sphere of equivalent radius was reproduced, whereas without HI rotation was too fast. When the single bead diffusion coefficients were rescaled for the correct Dtr at each N individually (open squares), τrot also scaled as but was still too fast by a factor of about five. For more explanations see text.