“…[4,5,38] Spectroscopic investigationso nt he presence of Cu I -Cu I interactions, particularly intermolecular cuprophilicity,a re more reliable but, unfortu-nately,l ess documented. [17,77] As such, different conclusions have been drawn for their existence, [78,79] and,t herefore, the presence of cuprophilic interactions is still under debates.…”