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. 2019 Dec 31;11(8):2243–2259. doi: 10.1039/c9sc05432d

Table 2. Carbene chemical shifts δ (ppm) a , b .

δ(Fe Created by potrace 1.16, written by Peter Selinger 2001-2019 C) δ(Ru Created by potrace 1.16, written by Peter Selinger 2001-2019 C)
1a 413.57 2a 369.55
1b 394.92 2b 353.72
1a·ArNC 444.78
1a·CNPy 433.85
δ(Fe Created by potrace 1.16, written by Peter Selinger 2001-2019 C) δ(Os Created by potrace 1.16, written by Peter Selinger 2001-2019 C)
1a·Py 433.58 3a 351.28 c
1a·NMe2Py 433.39 3b 367.04 c
1a·MeIm 433.36 3c 350.39

aMeasured in CDCl3 at 298 K.

bArNC = 2,6-dimethylphenyl isocyanide, CNPy = 4-cyanopyridine, Py = pyridine, NMe2Py = 4-dimethylaminopyridine, and MeIm = 1-methylimidazole.

cMeasured in C6D6 at 298 K.