Abstract
Thallium(I) derivatives of monocyclopentadienylbis(ethane-1,2-dithiolato)titanium, TlTi(?5-C5HnMe5-n)(edt) 2 {1, n = 0; 2, n = 4; edt = 1,2-S2C2H4}, have been synthesised and isolated in yields of 81 and 45%, respectively, from reactions of the corresponding reagents, Ti(?5-C5HnMe5-n)Cl3 and thallium salts of the ethane-1,2-dithiol. Conformational changes of the chelating dithiolate ligands in compound 1 have been monitored by variable temperature 1H-NMR spectroscopy. The preparation of compounds of the type TiCp(SAr)3 (Cp = ?5-C5H5) has been investigated and the crystal structure of TiCp(SC6H5)3, 3, determined by X-ray diffraction; the compound adopts a three-legged piano stool coordination geometry with two parallel phenyl rings (interplanar angle 2.0(2)°) directed away from the cyclopentadienyltitanium unit with inter-ring C-C contacts in the range 3.52-3.62 Å; the third phenyl ring is approximately orthogonal to the other two and lies over a cyclopentadienyl ring of a neighbouring molecule with an intermolecular C-C contact of 3.373(16) Å. © 1999 Elsevier Science S.A. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 9-14 |
Number of pages | 6 |
Journal | Journal of Organometallic Chemistry |
Volume | 577 |
Issue number | 1 |
Publication status | Published - 27 Mar 1999 |
Keywords
- Cyclopentadienyl
- Thiolate
- Titanium