A comparison between the selected parameters of the ligand and silver complex computed at the B3LYP level.

Parameter	Me-1	iPr-1	2 (Cal.)	2 (Exp.)
Ccarbene–N	1.3714	1.3698	1.3709	1.3354
Ccarbene–N	1.3729	1.3708	1.3720	1.3417
Ccarbene–N	1.3729	1.3708	1.3720	1.3421
Ccarbene–N	1.3714	1.3697	1.3732	1.3503
N–Ccarbene–N	101.53	101.73	104.43	105.02
N–Ccarbene–N	101.53	101.73	104.23	105.80
Ccarbene–Nim–C–CAc	−94.69	−95.87	−89.41	−91.84 (5)
Ccarbene–Nim–C–CAc	−94.71	−96.02	90.66	95.18 (6)