The spectroscopic quadrupole moment of the isomeric 6 +' (2552 keV) state of 117Sn has been derived from TDPAD measurements in a Cd metal host target at 500 K as Q I (6 +, 112 Sn) = ± 0.29(6) b . The calibration of the effective field gradient for Sn in Cd at 500 K, given by Herrlander et al. has been used. A comparison of the results with shell model estimates makes a mixed configuration of |( g 7 2 ) −26 +〉) and ( g 7 2 −1 d 5 2 −1)6 +〉) for the 6 + state most likely.