four compounds were built up by the intact bis ( cyclopentadienyl ) titanium ( iv ) ( `` '' titanocene '' '' ) unit , forming the cationic moiety together with two covalently bound ligands , with certain anions being bonded via electrostatic forces : the acetonitrile complex [ ( c5h5 ) 2ticl ( ncch3 ) ] + [ fec14 ] - ( i ) , the 2 ' 2'-bipyridyl derivative [ ( c5h5 ) 2ti ( bipy ) ] 2+ [ cf3so3 ] 2 ( ii ) , the o-phenanthroline complex [ ( c5h5 ) 2ti ( phen ) ] 2+ [ cf3so3 ] 2 ( iii ) , and the n-methyl-o-aminothiophenolate derivative [ ( c5h5 ) 2ti [ o-s ( nach3 ) c6h4 ] ] +i- ( iv ) .
C0003075
n anio
C0021966
]