The catalyst 1, wherein the alkali metal atoms are a mixture of atoms of lithium and at least one atom selected from {HEAD ~ the group} consisting of sodium, potassium, rubidium, cesium and {TAIL ~ francium} 
consisting of
The catalyst 1 , wherein the alkali metal atoms are a mixture of atoms of lithium and at least one atom selected from { HEAD ~ the group } consisting of sodium , potassium , rubidium , cesium and { TAIL ~ francium }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL