. 2021 Mar 26;143(13):5106–5120. doi: 10.1021/jacs.1c00738

Table 1. Selected Bond Lengths and Angles for the New σ-Alkane Complexes.

complex	Rh···C/Å	Rh–P/Å	C–C/Å^a	C–Rh–C/deg	PPRh–RhCC/deg^b
[1-propane][BAr^F₄]	2.46(2), 2.45(2)	2.206(4), 2.226(6)	1.54(2), 1.52(2)	61.3(8)	3.7 (81.4³⁹)
[1-(2-methylbutane)][BAr^F₄]	2.348(9), 2.39(1)	2.187(2), 2.185(2)	1.60(1), 1.51(2)	39.4(3)	5.3 (73.1)
[1-hexane][BAr^F₄]	2.527(3), 2.549(4)	2.2002(6), 2.1910(6)	1.511(5), 1.528(6)	58.5(1)	2.2 (83.7)
[1-(3-methylpentane)][BAr^F₄]	2.430(4), 2.788(6)	2.1959(7), 2.1965(7)	1.504(7), 1.475(8)	71.0(2)	16.5 (75.7)

C–C distances associated with the hydrogenated alkene groups (Figure 1).

Angle between planes defined by P1P2Rh and RhCC (σ-interaction). Angles in parentheses are for the equivalent measurement in the precursor alkene complexes.