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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-317.790852
Energy at 298.15K-317.801027
Counterpoise corrected energy-317.772185
CP Energy at 298.15K-317.782202
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy231.765506
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 PBEPBE/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' 3528 3495 45.87      
2 A' 3459 3427 14.10      
3 A' 3337 3306 1.87      
4 A' 2973 2946 24.39      
5 A' 2883 2857 0.13      
6 A' 2796 2771 1967.27      
7 A' 2271 2250 1559.97      
8 A' 1773 1757 66.98      
9 A' 1727 1711 296.33      
10 A' 1664 1649 132.22      
11 A' 1570 1556 20.00      
12 A' 1389 1376 43.74      
13 A' 1374 1361 9.34      
14 A' 1353 1340 41.59      
15 A' 1322 1310 30.90      
16 A' 1144 1133 55.29      
17 A' 1126 1116 8.72      
18 A' 1111 1101 22.57      
19 A' 686 680 5.80      
20 A' 601 596 3.80      
21 A' 344 341 132.47      
22 A' 252 250 0.01      
23 A' 197 195 1.01      
24 A" 1203 1192 217.85      
25 A" 1103 1093 49.95      
26 A" 1017 1007 7.91      
27 A" 986 977 57.69      
28 A" 725 718 134.13      
29 A" 604 598 91.56      
30 A" 457 453 43.89      
31 A" 256 253 0.93      
32 A" 182 180 78.99      
33 A" 83 82 10.30      

Unscaled Zero Point Vibrational Energy (zpe) 22747.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22540.1 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 PBEPBE/3-21G
ABC
0.17830 0.07306 0.05182

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.002 -1.251 0.000
N2 -1.092 -1.405 0.000
N3 1.562 -0.857 0.000
C4 -1.936 -0.357 0.000
O5 -1.609 0.873 0.000
C6 1.932 0.403 0.000
N7 1.050 1.428 0.000
H8 0.000 1.243 0.000
H9 -1.486 -2.351 0.000
H10 -3.013 -0.638 0.000
H11 2.361 -1.515 0.000
H12 2.993 0.712 0.000
H13 1.396 2.388 0.000

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.10471.60912.13352.66552.54222.87652.49371.85083.07622.37423.57763.8964
N21.10472.71011.34532.33623.52393.55202.86471.02502.06833.45494.60104.5363
N31.60912.71013.53343.61281.31392.34192.61773.39464.58031.03502.12383.2492
C42.13351.34533.53341.27273.94213.47902.51162.04421.11334.45015.04314.3170
O52.66552.33623.61281.27273.57282.71701.65143.22672.06254.63344.60493.3658
C62.54223.52391.31393.94213.57281.35202.10704.39025.05381.96581.10442.0555
N72.87653.55202.34193.47902.71701.35201.06654.55164.55843.22192.07001.0202
H82.49372.86472.61772.51161.65142.10701.06653.88963.55213.63093.03941.8054
H91.85081.02503.39462.04423.22674.39024.55163.88962.29483.93705.42645.5468
H103.07622.06834.58031.11332.06255.05384.55843.55212.29485.44516.15565.3477
H112.37423.45491.03504.45014.63341.96583.22193.63093.93705.44512.31544.0204
H123.57764.60102.12385.04314.60491.10442.07003.03945.42646.15562.31542.3142
H133.89644.53633.24924.31703.36582.05551.02021.80545.54685.34774.02042.3142

picture of formamide aminomethanimine dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 C4 120.788 H1 N2 H9 120.654
H1 N3 C6 120.514 H1 N3 H11 126.389
N2 H1 N3 173.902 N2 C4 O5 126.310
N2 C4 H10 114.214 N3 C6 N7 122.909
N3 C6 H12 122.619 C4 N2 H9 118.558
C4 O5 H8 117.808 O5 C4 H10 119.476
O5 H8 N7 177.027 C6 N3 H11 113.097
C6 N7 H8 120.742 C6 N7 H13 119.455
N7 C6 H12 114.473 H8 N7 H13 119.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.360      
2 N -0.735      
3 N -0.629      
4 C 0.357      
5 O -0.473      
6 C 0.290      
7 N -0.733      
8 H 0.342      
9 H 0.294      
10 H 0.166      
11 H 0.265      
12 H 0.190      
13 H 0.305      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.127 -1.191 0.000 2.438
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.135 6.730 0.000
y 6.730 -28.295 0.000
z 0.000 0.000 -38.657
Traceless
 xyz
x 5.341 6.730 0.000
y 6.730 5.101 0.000
z 0.000 0.000 -10.442
Polar
3z2-r2-20.884
x2-y20.160
xy6.730
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.342 0.537 0.000
y 0.537 8.914 0.000
z 0.000 0.000 1.936


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000