Abstract
2‐, 3‐, and 4‐mono‐deutero‐pyridine have been prepared and the microwave spectra recorded. For each of the isotopic species 11—12 transitions (Q‐ and R‐branch lines) were localized, a number of which could be identified by their Stark effect. For all three species rotational constants of high precision were calculated. The material so provided in connection with known rotational constants for ordinary pyridine is insufficient for a complete determination of the ten geometrical parameters of the molecule. Seven models with a choice of C – H distances close to the correct value (1.075‐1.085 A) were considered one of which was shown to be consistent with electron‐diffraction work and current valence theory. In this model d(N – C(2)) = 1.340±0.005; d(C(2) – C(3)) = 1.390±0.005; d(C(3) – C(4)) = 1.400±0.005 A. The valence angles in the aromatic ring (starting with the C(6) – N – C(2) angle) are: 116° 42′; 124° 00′; 118° 36′; 118° 06′.
Bak, B.;
Hansen, L.;
Rastrup-Andersen, J.
[1]
- Chemical Laboratory of the University of Copenhagen, Copenhagen (Denmark)
Citation Formats
Bak, B., Hansen, L., and Rastrup-Andersen, J.
Microwave Determination of the Structure of Pyridine.
United States: N. p.,
1954.
Web.
doi:10.1063/1.1739983.
Bak, B., Hansen, L., & Rastrup-Andersen, J.
Microwave Determination of the Structure of Pyridine.
United States.
https://doi.org/10.1063/1.1739983
Bak, B., Hansen, L., and Rastrup-Andersen, J.
1954.
"Microwave Determination of the Structure of Pyridine."
United States.
https://doi.org/10.1063/1.1739983.
@misc{etde_22685117,
title = {Microwave Determination of the Structure of Pyridine}
author = {Bak, B., Hansen, L., and Rastrup-Andersen, J.}
abstractNote = {2‐, 3‐, and 4‐mono‐deutero‐pyridine have been prepared and the microwave spectra recorded. For each of the isotopic species 11—12 transitions (Q‐ and R‐branch lines) were localized, a number of which could be identified by their Stark effect. For all three species rotational constants of high precision were calculated. The material so provided in connection with known rotational constants for ordinary pyridine is insufficient for a complete determination of the ten geometrical parameters of the molecule. Seven models with a choice of C – H distances close to the correct value (1.075‐1.085 A) were considered one of which was shown to be consistent with electron‐diffraction work and current valence theory. In this model d(N – C(2)) = 1.340±0.005; d(C(2) – C(3)) = 1.390±0.005; d(C(3) – C(4)) = 1.400±0.005 A. The valence angles in the aromatic ring (starting with the C(6) – N – C(2) angle) are: 116° 42′; 124° 00′; 118° 36′; 118° 06′.}
doi = {10.1063/1.1739983}
journal = []
issue = {12}
volume = {22}
journal type = {AC}
place = {United States}
year = {1954}
month = {Dec}
}
title = {Microwave Determination of the Structure of Pyridine}
author = {Bak, B., Hansen, L., and Rastrup-Andersen, J.}
abstractNote = {2‐, 3‐, and 4‐mono‐deutero‐pyridine have been prepared and the microwave spectra recorded. For each of the isotopic species 11—12 transitions (Q‐ and R‐branch lines) were localized, a number of which could be identified by their Stark effect. For all three species rotational constants of high precision were calculated. The material so provided in connection with known rotational constants for ordinary pyridine is insufficient for a complete determination of the ten geometrical parameters of the molecule. Seven models with a choice of C – H distances close to the correct value (1.075‐1.085 A) were considered one of which was shown to be consistent with electron‐diffraction work and current valence theory. In this model d(N – C(2)) = 1.340±0.005; d(C(2) – C(3)) = 1.390±0.005; d(C(3) – C(4)) = 1.400±0.005 A. The valence angles in the aromatic ring (starting with the C(6) – N – C(2) angle) are: 116° 42′; 124° 00′; 118° 36′; 118° 06′.}
doi = {10.1063/1.1739983}
journal = []
issue = {12}
volume = {22}
journal type = {AC}
place = {United States}
year = {1954}
month = {Dec}
}