|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
NF2CN |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nitrogen
|
|
|
Nuclear
Quadrupole Coupling Constants |
|
|
|
in Difluorocyanamide |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Table 1. Nitrogen nqcc's in N(1)F2CN(2) (MHz). Calculation was made on the ro structure of Lee et al. [2]. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Calc. |
|
Expt. [1] |
|
|
|
|
|
|
|
|
|
|
14N(1)
|
Xaa |
|
1.180 |
|
1.00(7) |
|
|
|
Xbb |
|
5.461 |
|
5.64 |
|
|
|
Xcc |
- |
6.641 |
- |
6.64 |
|
|
|
|Xab| |
|
3.687 |
|
|
|
|
|
|
|
|
|
|
|
|
|
RMS |
|
0.15 (3.3 %) |
|
|
|
|
|
RSD |
|
0.030 (1.3 %) |
|
|
|
|
|
|
|
|
|
|
|
14N(2) |
Xaa |
- |
3.985 |
- |
3.71(7) |
|
|
|
Xbb |
|
2.749 |
|
2.50 |
|
|
|
Xcc |
|
1.236 |
|
1.20 |
|
|
|
|Xab| |
|
1.220 |
|
|
|
|
|
|
|
|
|
|
|
|
|
RMS |
|
0.22 (8.7 %) |
|
|
|
|
|
RSD |
|
0.030 (1.3 %) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Table 1. Nitrogen nqcc's in N(1)F2CN(2) (MHz). Calculation was made on the "Kraitchman" (Kr) structure of Lee et al. [2]. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Calc. |
|
Expt. [1] |
|
|
|
|
|
|
|
|
|
|
14N(1)
|
Xaa |
|
1.076 |
|
1.00(7) |
|
|
|
Xbb |
|
5.541 |
|
5.64 |
|
|
|
Xcc |
- |
6.617 |
- |
6.64 |
|
|
|
|Xab| |
|
3.948 |
|
|
|
|
|
|
|
|
|
|
|
|
|
RMS |
|
0.07 (1.6 %) |
|
|
|
|
|
RSD |
|
0.030 (1.3 %) |
|
|
|
|
|
|
|
|
|
|
|
14N(2) |
Xaa |
- |
3.882 |
- |
3.71(7) |
|
|
|
Xbb |
|
2.779 |
|
2.50 |
|
|
|
Xcc |
|
1.104 |
|
1.20 |
|
|
|
|Xab| |
|
1.157 |
|
|
|
|
|
|
|
|
|
|
|
|
|
RMS |
|
0.20 (8.0 %) |
|
|
|
|
|
RSD |
|
0.030 (1.3 %) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Table 2. Molecular structure parameters (Å and degrees). |
|
|
|
|
|
|
ro [2] |
Kr [2] |
|
|
|
|
|
NF |
1.398 |
1.399 |
|
N-C |
1.392 |
1.386 |
|
CN |
1.151 |
1.158 |
|
FNF |
102.9 |
102.8 |
|
FNC |
104.7 |
105.4 |
|
NCN |
169.7 |
173.9 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
[1] M.Winnewisser and F.Stroh, J.Mol.Struct.
190,357(1988). |
|
|
[2] P.L.Lee, K.Cohn, and R.H.Schwendeman,
Inorg.Chem. 11,1920(1972).
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
PH2CN |
PF2CN |
PF2NH2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Table of Contents |
|
|
|
|
|
Molecules/Nitrogen |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
NF2CN.html |
|
|
|
|
|
|
Last
Modified 23 May 2003 |
|
|
|
|
|
|
|
|
|
|