|
Figure 2 Intermolecular agostic interactions in the structure of tetrakis(phenylethynyl)tin(IV) are shown as dotted lines. These distances are close to the sum of van der Waals radius of carbon and hydrogen atoms, namely C1—H28A 2.923 Å, C11—H18A (y,-x,1-z) 2.888 Å and C21—H8A (−x,-y,z) 2.853 Å. |