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11B chemical shifts BF3* OEt2 = 0 ppm All chemical shifts in ppm! Type chemical shift range BHal4– -120 to 12 B(NO3)4– -90 to -78 Hal3B<–PR3 -77 to 0 BH4– -40 to -30 H3B<–PR3 -43 to 0 H3B<–NR3 -25 to -5 C3B<–NR3 -10 to 5 Hal3<–NR3 -30 to 10 Hal3B<–OR2 -10 to 25 (Car-)Borane -38 … Continue reading