{TAIL ~ The monoanionic osmium catalyst} also exhibits an increased selectivity toward {HEAD ~ the straight chain product} 
{ TAIL ~ The monoanionic osmium catalyst } also exhibits an increased selectivity toward { HEAD ~ the straight chain product }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD