. 2016 May 19;138(21):6886–6892. doi: 10.1021/jacs.6b03560

Table 1. Experimental and Calculated (in Italics) NMR Parameters of Cations 7, 8, 11, and 12^a.

cation	δ²⁹Si(Si¹)	δ²⁹Si(Si²)	δ²⁹Si(Si³)
8^b	108.9, ¹J(SiH) = 43 Hz	–120.9	–6.4
8^c	105.9, ¹J(SiH) = 40 Hz^f	–124.8	–5.0
8(PhCl)^c	103.4	–122.0	–5.7
7^c	44.8	–33.3	–3.7
11^d	117.3, ¹J(SiH) = 45 Hz		0.4
11^e	117.6, ¹J(SiH) = 45 Hz		0.9
11^c	120.8, ¹J(SiH) = 42 Hz^f		–3.4
12^c		–93	–11

For the assignments, see Schemes 3 and 4.

At −30 °C in C₆D₅Cl.

Calculated at GIAO/M06-L/6-311G(2d,p)//M06-2X/6-311+G(d,p).

At −40 °C in C₆D₅Cl.

At −80 °C in CD₂Cl₂.

Calculated at B3LYP/IGLOIII (Si,C,H), 6-311+G(d,p) (Ge).

Table 1. Experimental and Calculated (in Italics) NMR Parameters of Cations 7, 8, 11, and 12a.