The structure of pyrrole-15N determined in nematic liquid crystals utilizing 13C-satellites in 1H NMR spectra

A static and dynamic NMR study of 10‐hydrazino‐BODIPY

“…In pyrrole (more about pyrrole in the theoretical part), the 1 J CH coupling constants are 183.28 Hz for C2 (linked to N1) and 168.80 Hz for C3. [ 37 ] In BoNHNH 2 , the 1 J CH measured in 13 C NMR are reported in Figure 5.…”

“…Experimental chemical shifts were published by some of us with J. D. Roberts in 1974, [ 39 ] following a paper of Roberts in 1968 where some SSCC were reported. [ 40 ] In the already cited paper of Jokisaari, [ 37 ] the coupling constants were given with much higher precision (Table 1).…”

“…Experimental chemical shifts were published by some of us with J. D. Roberts in 1974, [39] following a paper of Roberts in 1968 where some SSCC were reported. [40] In the already cited paper of Jokisaari, [37] the coupling constants were given with much higher precision (Table 1). Table 1 results show the excellent agreement both between chemical shifts (for a similar work on protonated alkylpyrroles, see Lacerda et al [41] ) and SSCC between experimental data and calculated values (slightly better results those including solvent effects):…”

The 1H NMR spectrum of pyrazole in a nematic phase

“…The number of studied molecules is very large, although most of them share simplicity and symmetry. Concerning heterocycles, the only reported compounds are as follows: pyridine ( 1 ), pyrimidine ( 2 ), pyrazine ( 3 ), s ‐triazine ( 4 ), pyridine‐3‐carbaldehyde ( 5 ), methyl nicotinate ( 6 ), methyl isonicotinate ( 7 ), furan ( 8 ), thiophene ( 9 ), pyrrole ( 10 ), and 2,2‐bithiophene ( 11 ) (Fig. ) .…”