|3D model (Jmol)||Interactive image|
|Molar mass||240.48 g·mol−1|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Tetra-tert-butylmethane is a hypothetical organic compound with formula C17H36, or ((H3C-)3C-)4C. It would be an alkane, specifically the most compact branched isomer of heptadecane. The systematic name is 3,3-Di-tert-butyl-2,2,4,4-tetramethylpentane.
This compound is of interest because it is believed to be the smallest saturated and acyclic hydrocarbon that cannot exist (due to steric hindrance). However calculations suggest that the molecule would be stable, with C–C bonds of 0.1661 nm — longer than the typical C−C bond but still shorter than those found in some other real molecules.
- da Silva, K.M.; Goodman, J.M. (2005). "What is the smallest saturated acyclic alkane that cannot be made?". Journal of Chemical and Information Modeling. 45 (1): 81–87. doi:10.1021/ci0497657. PMID 15667132.
- Cheng, M-F; Li, W-K (2003). "Structural and energetics studies of tri- and tetra-tert-butylmethane". Journal of Physical Chemistry A. 78 (1): 5492–5498. doi:10.1021/jp034879r.