return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-319.168957
Energy at 298.15K-319.178362
HF Energy-318.146198
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy228.814182
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 MP2/TZVP
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 3722 3528 83.70      
2 A 3714 3520 80.47      
3 A 3573 3387 8.44      
4 A 3434 3255 579.11      
5 A 3259 3090 613.83      
6 A 3126 2963 70.52      
7 A 3039 2881 156.72      
8 A 1789 1696 531.02      
9 A 1744 1654 100.13      
10 A 1674 1587 6.18      
11 A 1659 1573 8.00      
12 A 1455 1379 19.93      
13 A 1445 1370 23.44      
14 A 1396 1323 28.63      
15 A 1357 1286 96.07      
16 A 1168 1107 70.30      
17 A 1133 1074 12.72      
18 A 1119 1060 5.21      
19 A 1054 999 6.88      
20 A 1048 994 2.39      
21 A 847 803 123.82      
22 A 808 766 21.45      
23 A 759 719 173.24      
24 A 638 605 10.26      
25 A 589 558 5.73      
26 A 488 462 35.70      
27 A 482 457 205.13      
28 A 214 203 67.83      
29 A 187 177 1.89      
30 A 158 150 2.30      
31 A 145 138 9.49      
32 A 134 127 50.77      
33 A 51 48 18.62      

Unscaled Zero Point Vibrational Energy (zpe) 23703.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 22468.7 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 MP2/TZVP
ABC
0.18338 0.06441 0.04782

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.498 1.216 -0.000
N2 1.525 1.091 0.023
N3 -1.412 1.185 -0.013
C4 2.066 -0.134 -0.003
O5 1.438 -1.187 -0.041
C6 -2.067 0.079 -0.018
N7 -1.483 -1.132 0.068
H8 -0.465 -1.218 0.026
H9 2.126 1.898 0.051
H10 3.169 -0.137 0.016
H11 -2.037 1.981 -0.057
H12 -3.160 0.038 -0.067
H13 -2.039 -1.956 -0.069

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.03511.90962.06942.58122.80583.07302.61791.76572.99492.64853.84324.0624
N21.03512.93821.33972.28103.73223.74093.04831.00612.05253.67264.80254.6900
N31.90962.93823.71903.70781.28542.31912.58283.60914.76791.01382.09153.2033
C42.06941.33973.71901.22634.13833.68732.75302.03351.10404.61655.22864.4912
O52.58122.28103.70781.22633.72712.92411.90443.16192.02584.70294.75833.5612
C62.80583.73221.28544.13833.72711.34702.06204.57095.24121.90271.09442.0359
N73.07303.74092.31913.68732.92411.34701.02304.71224.75833.16432.04861.0034
H82.61793.04832.58282.75301.90442.06201.02304.05223.79173.56572.97461.7411
H91.76571.00613.60912.03353.16194.57094.71224.05222.28694.16545.60455.6755
H102.99492.05254.76791.10402.02585.24124.75833.79172.28695.62156.33215.5176
H112.64853.67261.01384.61654.70291.90273.16433.56574.16545.62152.24413.9371
H123.84324.80252.09155.22864.75831.09442.04862.97465.60456.33212.24412.2873
H134.06244.69003.20334.49123.56122.03591.00341.74115.67555.51763.93712.2873

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 120.706 H1 N2 H9 119.766
H1 N3 C6 121.615 H1 N3 H11 127.185
N2 H1 N3 172.052 N2 C4 O5 125.414
N2 C4 H10 113.918 N3 C6 N7 123.498
N3 C6 H12 122.799 C4 N2 H9 119.521
C4 O5 H8 121.609 O5 C4 H10 120.668
O5 H8 N7 174.227 C6 N3 H11 111.143
C6 N7 H8 120.301 C6 N7 H13 119.318
N7 C6 H12 113.684 H8 N7 H13 118.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability