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: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-319.038051
Energy at 298.15K-319.047289
Counterpoise corrected energy-319.034594
CP Energy at 298.15K-319.043684
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy227.863705
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 MP2/6-31+G**
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 3775 3551 107.71      
2 A 3759 3536 95.87      
3 A 3609 3394 9.58      
4 A 3481 3274 611.82      
5 A 3315 3118 627.24      
6 A 3164 2976 69.51      
7 A 3092 2908 141.36      
8 A 1792 1686 607.04      
9 A 1760 1656 98.96      
10 A 1687 1587 10.15      
11 A 1673 1574 6.38      
12 A 1445 1359 46.06      
13 A 1444 1358 1.81      
14 A 1395 1313 35.21      
15 A 1366 1285 101.09      
16 A 1170 1100 75.72      
17 A 1136 1069 4.53      
18 A 1119 1053 3.11      
19 A 1065 1002 17.73      
20 A 1050 987 1.15      
21 A 858 807 72.87      
22 A 793 746 27.90      
23 A 746 702 171.08      
24 A 630 593 9.87      
25 A 580 545 7.97      
26 A 466 438 94.83      
27 A 436 410 158.63      
28 A 214 201 70.41      
29 A 172 162 3.40      
30 A 157 148 3.86      
31 A 144 136 8.81      
32 A 113 106 63.61      
33 A 44 42 21.85      

Unscaled Zero Point Vibrational Energy (zpe) 23826.2 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 22411.0 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 MP2/6-31+G**
ABC
0.18206 0.06380 0.04734

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.509 1.212 -0.002
N2 -1.531 1.099 0.042
N3 1.425 1.188 -0.072
C4 -2.083 -0.129 0.000
O5 -1.449 -1.196 0.012
C6 2.080 0.076 0.059
N7 1.497 -1.139 -0.086
H8 0.478 -1.203 -0.093
H9 -2.125 1.906 -0.045
H10 -3.181 -0.125 -0.029
H11 2.058 1.975 0.043
H12 3.154 0.035 0.249
H13 2.005 -1.948 0.229

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.02891.93512.06762.58512.82773.09202.61031.75922.98802.67833.85524.0442
N21.02892.95891.34662.29633.75253.76733.05781.00612.05583.69414.80804.6705
N31.93512.95893.74743.73531.29742.32912.57163.62154.78951.01622.10293.2035
C42.06761.34663.74741.24114.16823.72082.77882.03571.09854.64485.24504.4797
O52.58512.29633.73531.24113.75182.94851.93063.17512.03634.72834.77073.5413
C62.82773.75251.29744.16823.75181.35602.05504.58685.26531.89881.09132.0326
N73.09203.76732.32913.72082.94851.35601.02064.73234.78703.16712.05841.0053
H82.61033.05782.57162.77881.93062.05501.02064.05493.81513.55102.96751.7286
H91.75921.00613.62152.03573.17514.58684.73234.05492.28924.18455.60805.6549
H102.98802.05584.78951.09852.03635.26534.78703.81512.28925.64466.34275.5025
H112.67833.69411.01624.64484.72831.89883.16713.55104.18455.64462.23723.9274
H123.85524.80802.10295.24504.77071.09132.05842.96755.60806.34272.23722.2920
H134.04424.67053.20354.47973.54132.03261.00531.72865.65495.50253.92742.2920

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 120.415 H1 N2 H9 119.636
H1 N3 C6 120.757 H1 N3 H11 127.531
N2 H1 N3 172.967 N2 C4 O5 125.042
N2 C4 H10 114.061 N3 C6 N7 122.730
N3 C6 H12 123.140 C4 N2 H9 119.108
C4 O5 H8 120.805 O5 C4 H10 120.889
O5 H8 N7 174.898 C6 N3 H11 109.711
C6 N7 H8 119.017 C6 N7 H13 118.047
N7 C6 H12 114.072 H8 N7 H13 117.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.469      
2 N -0.695      
3 N -0.756      
4 C 0.493      
5 O -0.695      
6 C 0.264      
7 N -0.683      
8 H 0.441      
9 H 0.321      
10 H 0.123      
11 H 0.274      
12 H 0.136      
13 H 0.309      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.034 1.965 0.809 2.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.075 -7.583 2.921
y -7.583 -35.027 -0.992
z 2.921 -0.992 -40.591
Traceless
 xyz
x 16.734 -7.583 2.921
y -7.583 -4.194 -0.992
z 2.921 -0.992 -12.540
Polar
3z2-r2-25.081
x2-y213.952
xy-7.583
xz2.921
yz-0.992


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.853 -0.572 0.202
y -0.572 10.500 0.043
z 0.202 0.043 5.449


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