{TAIL ~ A catalyst precursor} 1 wherein {HEAD ~ the stabilizing agent} is selected from the group consisting of acetonitrile and tetrahydrofuran 
{ TAIL ~ A catalyst precursor } 1 wherein { HEAD ~ the stabilizing agent } is selected from the group consisting of acetonitrile and tetrahydrofuran
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH