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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-318.947534
Energy at 298.15K-318.956859
HF Energy-318.021453
Counterpoise corrected energy-318.940245
CP Energy at 298.15K-318.949574
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy227.656021
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 MP2/6-31G*
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 3731 3519 99.13      
2 A 3714 3502 90.92      
3 A 3551 3348 4.62      
4 A 3459 3262 627.05      
5 A 3301 3113 599.59      
6 A 3134 2956 78.91      
7 A 3055 2881 164.99      
8 A 1827 1723 490.53      
9 A 1786 1684 94.14      
10 A 1705 1608 6.54      
11 A 1694 1597 10.66      
12 A 1465 1381 30.57      
13 A 1459 1376 9.91      
14 A 1408 1328 25.00      
15 A 1381 1302 91.54      
16 A 1182 1115 74.56      
17 A 1146 1081 5.08      
18 A 1125 1061 1.46      
19 A 1079 1018 14.13      
20 A 1062 1001 0.57      
21 A 892 841 124.73      
22 A 819 772 6.77      
23 A 773 729 199.32      
24 A 643 606 11.23      
25 A 590 557 6.94      
26 A 477 450 123.87      
27 A 395 372 145.18      
28 A 229 216 65.17      
29 A 179 168 2.39      
30 A 165 156 5.40      
31 A 149 141 4.17      
32 A 123 116 95.23      
33 A 57 53 9.86      

Unscaled Zero Point Vibrational Energy (zpe) 23877.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 22516.3 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 MP2/6-31G*
ABC
0.18259 0.06332 0.04710

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.561 1.218 0.033
N2 1.581 1.101 0.038
N3 -1.484 1.189 -0.020
C4 2.128 -0.131 -0.010
O5 1.505 -1.194 -0.061
C6 -2.133 0.073 -0.031
N7 -1.534 -1.137 0.106
H8 -0.516 -1.201 0.065
H9 2.172 1.918 0.083
H10 3.235 -0.115 0.000
H11 -2.122 1.979 -0.094
H12 -3.225 0.007 -0.119
H13 -2.058 -1.971 -0.108

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.02652.04562.06822.59142.92803.15262.64781.75732.98752.79153.97834.1291
N21.02653.06631.34942.29813.85423.83603.11401.00962.05303.80744.93174.7648
N32.04563.06633.84543.82251.29142.33012.57933.72904.89511.01822.10743.2130
C42.06821.34943.84541.23234.26583.79902.85332.05241.10694.74555.35614.5737
O52.59142.29813.82251.23233.85243.04402.02553.18592.03924.81884.88083.6477
C62.92803.85421.29144.26583.85241.35722.06014.68525.37101.90721.09792.0465
N73.15263.83602.33013.79903.04401.35721.02014.80294.87783.17742.05451.0081
H82.64783.11402.57932.85332.02552.06011.02014.11773.90563.56542.97151.7323
H91.75731.00963.72902.05243.18594.68524.80294.11772.29574.29765.72935.7496
H102.98752.05304.89511.10692.03925.37104.87783.90562.29575.75186.46225.6101
H112.79153.80741.01824.74554.81881.90723.17743.56544.29765.75182.26023.9504
H123.97834.93172.10745.35614.88081.09792.05452.97155.72936.46222.26022.2963
H134.12914.76483.21304.57373.64772.04651.00811.73235.74965.61013.95042.2963

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 120.428 H1 N2 H9 119.328
H1 N3 C6 120.998 H1 N3 H11 128.121
N2 H1 N3 172.571 N2 C4 O5 125.730
N2 C4 H10 113.036 N3 C6 N7 123.206
N3 C6 H12 123.572 C4 N2 H9 120.244
C4 O5 H8 120.313 O5 C4 H10 121.235
O5 H8 N7 176.046 C6 N3 H11 110.787
C6 N7 H8 119.451 C6 N7 H13 119.074
N7 C6 H12 113.192 H8 N7 H13 117.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability