## Abstract We present calculations of indirect nuclear spin–spin coupling constants in large molecular systems, performed using density functional theory. Such calculations, which have become possible because of the use of linear‐scaling techniques in the evaluation of the Coulomb and exchange‐cor
Calculation of the isotropic nuclear spin spin coupling constants for H2O, NH3 and CH4
✍ Scribed by M. Maestro; R. Moccia; M. Zandomeneghi
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 425 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Isokopic nuclear spti spin coupling constants have been e-&dated for ti possible couplings in HIO, NH3 and CH4 by two different double perturbation techniques. All calculations were performed employing bases of decors constructed with SCF canonical and, for H20, localized orbitals, produced by extended ST0 basis set calculations.
📜 SIMILAR VOLUMES
Partially resolved hyperfine structure arising from H,Br nuclear-spin-nuclear-spin coupling has been identified in each Brnuclear quadrupole component of the l,,, +O,,,, transition of H,O...HBr. Lineshape simulation leads to a value of D,,= -23 (2) kHz for the spin-spin coupling constant for both H,