1 Determination of the distributions of the spin Hamiltonian parameters in spin triangles: a combined magnetic susceptometry and EPR spectroscopic study of the highly-symmetric [Cr 3 O(PhCOO) 6 (py) 3 ](ClO 4 )·0.5py Athanassios K. Boudalis a *, Guillaume Rogez b , Philippe Turek a a Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081 Strasbourg, France. E-mail: bountalis@unistra.fr. b Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, F-67000 Strasbourg, France. Keywords: magnetic properties, EPR spectroscopy, spin triangles, Dzyaloshinskii-Moriya interactions, distributions Corresponding Author *Email: bountalis@unistra.fr