Abstract

The Cover Feature shows the Group 14 elements M=C, Si, and Ge in order of the effective electron-withdrawing power of the −MF3 fragment. C and Ge far outperform Si in mediating polarization of a fourth substituent such as I in F3M−I in the gas and solution phases. Thus, polarized germanium halide sites in molecules and solids (but not Si alternatives) may form strong halogen bonds that are comparable to those formed by their organic analogues. More information can be found in the Full Paper by K. J. Donald and co-workers.

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