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All results from a given calculation for HCONH2CN2H4 (formamide aminomethanimine dimer)

using model chemistry: HF_cp/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF_cp/3-21G
 hartrees
Energy at 0K-316.241420
Energy at 298.15K-316.232956
Nuclear repulsion energy 
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3868 3503 97.05      
2 A' 3843 3480 76.49      
3 A' 3664 3318 2.37      
4 A' 3551 3216 692.67      
5 A' 3301 2989 688.23      
6 A' 3239 2933 103.83      
7 A' 3196 2894 246.10      
8 A' 1924 1743 181.59      
9 A' 1893 1714 474.24      
10 A' 1842 1668 109.98      
11 A' 1801 1631 0.57      
12 A' 1561 1414 56.26      
13 A' 1551 1405 76.72      
14 A' 1484 1344 38.26      
15 A' 1451 1314 159.57      
16 A' 1257 1139 90.01      
17 A' 1222 1107 8.42      
18 A' 1201 1087 58.16      
19 A' 714 647 17.40      
20 A' 646 585 6.41      
21 A' 257 232 83.75      
22 A' 200 181 0.15      
23 A' 177 160 2.70      
24 A" 1227 1111 0.53      
25 A" 1222 1106 5.99      
26 A" 1148 1039 488.57      
27 A" 1017 921 164.49      
28 A" 851 771 103.78      
29 A" 638 578 114.15      
30 A" 508 460 84.32      
31 A" 272 247 1.90      
32 A" 186 169 93.80      
33 A" 78 71 16.90      

Unscaled Zero Point Vibrational Energy (zpe) 25494.2 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 23087.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/3-21G
ABC
0.18500 0.06705 0.04922

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.036 -1.293 0.000
N2 -1.033 -1.532 0.000
N3 1.712 -0.634 0.000
C4 -1.954 -0.572 0.000
O5 -1.735 0.638 0.000
C6 1.941 0.618 0.000
N7 0.977 1.553 0.000
H8 0.000 1.288 0.000
H9 -1.306 -2.490 0.000
H10 -2.974 -0.939 0.000
H11 2.540 -1.209 0.000
H12 2.941 1.027 0.000
H13 1.211 2.520 0.000

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.02551.86812.04902.57202.74973.02112.58121.74482.95922.57753.77414.0114
N21.02552.88851.32982.28033.67003.68223.00320.99602.02903.58804.72674.6316
N31.86812.88853.66683.67461.27342.30812.57433.54254.69611.00792.06633.1938
C42.04901.32983.66681.22974.07273.62042.69802.02441.08414.53915.14964.4245
O52.57202.28033.67461.22973.67602.86221.85303.15712.00574.65724.69233.4957
C62.74973.67001.27344.07273.67601.34302.05304.49445.15581.92331.08042.0367
N73.02113.68222.30813.62042.86221.34301.01214.64294.67153.17422.03370.9944
H82.58123.00322.57432.69801.85302.05301.01213.99723.71583.56202.95251.7272
H91.74480.99603.54252.02443.15714.49444.64293.99722.27774.05335.51365.6061
H102.95922.02904.69611.08412.00575.15584.67153.71582.27775.52076.23335.4295
H112.57753.58801.00794.53914.65721.92333.17423.56204.05335.52072.27163.9588
H123.77414.72672.06635.14964.69231.08042.03372.95255.51366.23332.27162.2853
H134.01144.63163.19384.42453.49572.03670.99441.72725.60615.42953.95882.2853

picture of formamide aminomethanimine dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.444      
2 N -0.965      
3 N -0.779      
4 C 0.630      
5 O -0.652      
6 C 0.488      
7 N -0.945      
8 H 0.417      
9 H 0.340      
10 H 0.191      
11 H 0.283      
12 H 0.209      
13 H 0.339      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.946 -1.378 0.000 2.385
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 213.648
(<r2>)1/2 14.617