By using specific examples, illustrate how heteronuclear NMR spectroscopy can be used for the routine characterization of main group organometallic compounds. [Tables 4.3, 11.1, 13.1, 14.1 and 15.2 provide relevant nuclear spin data.]

Table 4.3.

Table 11.1.

Table 13.1.

Table 14.1.

Table 15.2.

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Nucleus ΤΗ 2H Li "B 13C 170 19 F 23 Na 27 Al 29 Si 31 p TSC 103 Rh 117 Sn 119 Sn 183 W 195 Pt 99 Hg Natural abundance/% >99.9 0.015 92.41 80.1 1.07 0.04 100 100 100 4.69 100 7.63 100 7.68 8.59 26.40 14.31 33.78 16.87 mley -la V -~ ml valy -le -IN -IN -k IN -h-k -IN Frequency of observation / MHz (referred to ¹H at 100 MHz) 100 15.35 38.9 32.1 25.1 13.5 94.0 26.45 26.1 19.9 40.5 19.1 3.2 35.6 37.3 27.7 4.2 21.5 17.9 Chemical shift reference (8 0ppm): SiMe SiMe4 LICI (1M in H₂O) F3B-OE1₂ SiMe4 H₂O CFC13 NaCl (1 M in H₂O) [Al(OH₂)]³+ SiMe H₂PO4 (85%, aq) SeMe₂ Rh (metal) SnMe4 SnMe4 XeOF4 Na₂WO4 (in D₂O) Na₂ [PIC16] HgMe,