Crystal and molecular structure of bis(tetramethylcyclopentadienyl)titanium halides, (C5HMe4)2TiCl, (C5HMe4)2 TiI and (C5HMe4)2 TiCl2

Synthesis and characterization of titanium tetraisocyanide complexes, [CpTi(CNXyl)4E], E=I, SnPh3, and SnMe3

“…à TiI], 2.759(2), where Cp à = C 5 Me 4 H [29]. In contrast the Ti-I distance in 1 is about 0.15 Å longer than the previous ''record" value observed in the Ti(II) complex, Cs[TiI 3 ], 2.8992(7) Å [30].…”

The Dimeric Structure of Bis(1,3-Dimethylcyclopentadienyl)titanium(III) Chloride

“…The X-ray crystal analyses revealed halogen-bridged dimers for n = 0 and n = 1 (ref. 1 ) whereas (C 5 HMe 4 ) 2 TiCl, (C 5 HMe 4 ) 2 TiI (ref. 2 ) and (C 5 Me 5 ) 2 TiCl (ref.…”

“…1 ) whereas (C 5 HMe 4 ) 2 TiCl, (C 5 HMe 4 ) 2 TiI (ref. 2 ) and (C 5 Me 5 ) 2 TiCl (ref. 3 ) were established to be monomers.…”

“…3 ) were established to be monomers. The EPR study of the series of compounds (C 5 H 2 Me 3 ) 2 TiX, (C 5 HMe 4 ) 2 TiX and (C 5 Me 5 ) 2 TiX (X = Cl, Br, I) in the toluene solution and glass has proven that all the compounds are monomers at temperatures down to 77 K (ref. 4 ).…”

“…4 ). The solution EPR spectra of [(C 5 H 5 ) 2 TiCl] 2 and [(C 5 H 4 Me) 2 TiCl] 2 in toluene gave low-intensity asymmetrical broad signals which were difficult to assign until recently, when the EPR spectrum of [(C 5 H 5 ) 2 TiCl] 2 in toluene glass was interpreted as arising from a dimer in the spin triplet state 5 . In 2-methyltetrahydrofuran (MTHF), however, the ESR spectra of the C 5 H 5 and C 5 H 4 Me compounds indicated the presence of monomers with coordinated at least one molecule of MTHF (refs 4,6 ).…”