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

using model chemistry: MP2_cp_opt/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_cp_opt/6-31G*
 hartrees
Energy at 0K-318.940245
Energy at 298.15K-318.949574
Nuclear repulsion energy71.850001
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_cp_opt/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 3518 98.99      
2 A 3714 3502 91.09      
3 A 3551 3348 4.62      
4 A 3458 3261 631.21      
5 A 3301 3113 594.75      
6 A 3133 2955 78.93      
7 A 3055 2880 164.84      
8 A 1827 1723 490.76      
9 A 1786 1684 94.22      
10 A 1705 1608 6.59      
11 A 1694 1597 10.53      
12 A 1465 1381 30.68      
13 A 1459 1376 9.89      
14 A 1408 1328 25.02      
15 A 1381 1302 91.60      
16 A 1182 1115 74.62      
17 A 1146 1081 5.11      
18 A 1125 1061 1.48      
19 A 1079 1018 14.08      
20 A 1062 1001 0.59      
21 A 891 841 124.90      
22 A 819 772 6.82      
23 A 774 730 198.79      
24 A 643 606 11.22      
25 A 590 557 6.95      
26 A 477 450 123.90      
27 A 395 373 145.47      
28 A 229 216 65.36      
29 A 179 169 2.21      
30 A 166 157 5.21      
31 A 150 141 4.08      
32 A 124 117 95.30      
33 A 57 54 9.73      

Unscaled Zero Point Vibrational Energy (zpe) 23877.7 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 22516.7 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_cp_opt/6-31G*
ABC
0.18255 0.06150 0.04611

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2_cp_opt/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.489 1.210 0.029
N2 1.517 1.105 0.032
N3 -1.453 1.182 -0.011
C4 2.086 -0.112 -0.010
O5 1.481 -1.191 -0.058
C6 -2.092 0.056 -0.036
N7 -1.474 -1.140 0.113
H8 -0.451 -1.180 0.064
H9 2.101 1.928 0.078
H10 3.190 -0.085 0.000
H11 -2.111 1.957 -0.093
H12 -3.181 -0.018 -0.139
H13 -1.978 -1.978 -0.135

Atom - Atom Distances (Å)
  H1 N2 N3 C4 O5 C6 N7 H8 H9 H10 H11 H12 H13
H11.03281.94332.07342.59862.82793.06302.56861.76482.99542.70853.87324.0341
N21.03282.97141.34472.29823.75863.74053.01631.00962.05403.72874.83274.6635
N31.94332.97143.76893.77391.29442.32562.56723.63254.81341.01972.10683.2051
C42.07341.34473.76891.23804.18183.70762.75442.04151.10414.68055.26944.4743
O52.59862.29823.77391.23803.78432.96001.93613.18232.03634.77634.80763.5487
C62.82793.75861.29444.18183.78431.35502.05704.59275.28401.90141.09602.0392
N73.06303.74052.32563.70762.96001.35501.02444.71054.78293.16862.05831.0085
H82.56863.01632.56722.75441.93612.05701.02444.02143.80303.55272.97361.7343
H91.76481.00963.63252.04153.18234.59274.71054.02142.29024.21565.63235.6511
H102.99542.05404.81341.10412.03635.28404.78293.80302.29025.68196.37265.5058
H112.70853.72871.01974.68054.77631.90143.16863.55274.21565.68192.24583.9366
H123.87324.83272.10685.26944.80761.09602.05832.97365.63236.37262.24582.2990
H134.03414.66353.20514.47433.54872.03921.00851.73435.65115.50583.93662.2990

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 120.850 H1 N2 H9 119.563
H1 N3 C6 120.390 H1 N3 H11 129.486
N2 H1 N3 173.317 N2 C4 O5 125.654
N2 C4 H10 113.665 N3 C6 N7 122.739
N3 C6 H12 123.397 C4 N2 H9 119.584
C4 O5 H8 118.746 O5 C4 H10 120.682
O5 H8 N7 177.859 C6 N3 H11 109.935
C6 N7 H8 119.000 C6 N7 H13 118.534
N7 C6 H12 113.822 H8 N7 H13 117.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 N 0.000      
3 N -0.707      
4 C 0.000      
5 O 0.000      
6 C 0.316      
7 N -0.867      
8 H 0.396      
9 H 0.000      
10 H 0.000      
11 H 0.318      
12 H 0.168      
13 H 0.377      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.123 1.884 -0.580 2.269
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.729 0.762 1.815
y 0.762 -15.440 0.896
z 1.815 0.896 -20.735
Traceless
 xyz
x 8.358 0.762 1.815
y 0.762 -0.208 0.896
z 1.815 0.896 -8.150
Polar
3z2-r2-16.300
x2-y25.711
xy0.762
xz1.815
yz0.896


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.479 0.098 0.184
y 0.098 5.403 -0.140
z 0.184 -0.140 1.612


<r2> (average value of r2) Å2
<r2> 222.504
(<r2>)1/2 14.917