Cyclopentadienylthallium
| Names | |
|---|---|
| Other names
thallium cyclopentadienide
| |
| Identifiers | |
| ECHA InfoCard | 100.047.466 |
| Properties | |
| C5H5Tl | |
| Molar mass | 269.48 g/mol |
| Appearance | light yellow solid |
| Melting point | 300℃ (573 K) |
| insoluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Cyclopentadienyl thallium, also known as thallium cyclopentadienide, is a compound with formula C5H5Tl. This light yellow solid is insoluble in most organic solvents, can be handled in air, and is useful as ligand transfer reagents for syntheses of transition metal and main group Cp compounds, as well as organic cyclopentadiene derivatives.[1]
Preparation and Chemistry
Cyclopentadienyl thallium is prepared by reacting thallium(I) sulfate with sodium hydroxide and cyclopentadiene:[2]
- Tl2SO4 + 2 NaOH --> 2 TlOH + Na2SO4
- 2 TlOH + 2 C5H6 --> 2 TlC5H5 + 2 H2O
Applications
Compared to most of other cyclopentadienyl transfer reagent such as cyclopentadienyl sodium, CpMgBr and Cp2Mg, cyclopentadienyl thallium is less air sensitive, and is much easier to prepare. Due to these characteristics, this organometallic compound is a good reagent for preparing a variety of cyclopentadienyl complexes.
References
- ^ C. Elschenbroich, (2006), Organometallics, Wiley-VCH, Weinheim, p. 130, ISBN 3-527-29390-6
{{citation}}: CS1 maint: extra punctuation (link) - ^ A.J. Nielson, C.E.F. Rickard, J.M. Smith (1986). "Cyclopentadienyl thallium". Inorg. Synth. 24: 97–99. doi:10.1002/9780470132555.ch31.
{{cite journal}}: CS1 maint: multiple names: authors list (link)