14 N nuclear quadrupole resonance study of the protonation of thiourea | Zendy

Murgich Juan | Zendy; Magaly Santana R. | Zendy; Abanero Jose A. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

14 N nuclear quadrupole resonance study of the protonation of thiourea

Author(s) -

Murgich Juan,

Magaly Santana R.,

Abanero Jose A.

Publication year - 1987

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260250206

Subject(s) - chemistry , protonation , thiourea , nuclear quadrupole resonance , hydrogen bond , perchloric acid , hexamethylenetetramine , crystallography , inorganic chemistry , molecule , nuclear magnetic resonance , organic chemistry , ion , physics

14 N NQR frequencies of thiourea complexes with HCIO 4 , HCI and H 2 SO 4 obtained at 77 K are reported. Comparison of NQR data previously obtained in hexamethylenetetramine‐2thiourea showed that the perchloric acid complex was a hydrogen‐bonded complex. A similar comparison with uronium salts showed that the other complexes were thiouronium salts. The protonation site in thiouronium salts was shown to be the S atom. S protonation produced decreases of the N non‐bonding orbital occupation number and increases in those of the NN and NC sigma bonds. Changes in the N non‐bonding orbital produced by protonation were larger in thiourea than in urea.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research