  We present a study of the superconducting properties (Tc and Hc2) in the
solid solution (TMTSF)2(ClO4)(1-x)(ReO4)x with a ReO-4 nominal concentration up
to x = 6%. The dramatic suppression of Tc when the residual resistivity is
increased upon alloying with no modification of the Fermi surface is the
signature of non-conventional superconductivity . This behaviour strongly
supports p or d wave pairing in quasi one dimensional organic superconductors.
The determination of the electron lifetime in the normal state at low
temperature confirms that a single particle Drude model is unable to explain
the temperature dependence of the conductivity and that a very narrow zero
frequency mode must be taken into account for the interpretation of the
transport properties.
