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. 2022 Mar 23;12(7):4227–4241. doi: 10.1021/acscatal.1c05823

Table 1. Selected Spectroscopic and Structural Data of Complexes 1–8·C2H4.

compound δ1H (ppm) δ13C (ppm) δ31P (ppm)a %Vburb d(C=C) (Å)
C2H4 5.43 116.8     1.313c
1·C2H4 3.66; 3.79 110.2 13.1 (9.5) 67.0 1.236(10)d
2·C2H4 5.46 111.2 1.5 (−5.4) 45.3  
3·C2H4 4.95 110.9 65.6 (58.6) 55.5 1.353(15)
4·C2H4 4.85 110.3 4,3 (−5.7) 46.2  
5·C2H4 5.00 111.5 4.1 (−3.2) 38.2  
6·C2H4 4.86 111.0 57.6 (53.3) 53.5  
7·C2H4 5.16 111.8 9.4 (0.4) 45.0  
8·C2H4 4.77 109.0 55.4 (48.8) 53.7 1.384(10)
a

The corresponding δ31P NMR of the gold chloride complexes 1–8 is indicated in parentheses.

b

%Vbur is calculated from the corresponding gold(I) chloride complexes 1–8 (see the SI for more details).

c

Data from ref (26).

d

Data from ref (19).