A Computational and Structural Database Study of the Metal-Carbene Bond in Groups IA, IIA, and IIIA Imidazol-2-Ylidene Complexes

Table 5

Percent distribution of electrons in the C1-B28 bond with the corresponding s and p characters.

Molecule	Electron density (e)	Percent C1	Percent B28
1	1.966	67.95 (48.64%s : 51.36% p)	32.05 (22.56%s : 77.35%p)
2	1.956	72.44 (44.50%s : 55.50%p)	27.56 (23.68%s : 76.19%p)
3	1.949	72.14 (46.72%s : 53.28%p)	27.86 (20.43%s : 79.45%p)
4	1.944	64.78 (44.58%s : 55.14%p)	35.22 (24.31%s : 75.64%p)
5	1.970	72.24 (42.48%s : 57.51%p)	27.76 (26.93%s : 72.92%p)
6	1.969	67.90 (48.64%s : 51.36%p)	32.10 (22.49%s : 77.43%p)
7	1.967	68.15 (48.94%s : 51.06%p)	31.85 (22.29%s : 77.36%p)