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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: M06-2X/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/6-31G*
 hartrees
Energy at 0K-151.123710
Energy at 298.15K-151.131785
HF Energy-151.123710
Nuclear repulsion energy83.206606
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 M06-2X/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 A1 3505 3319 0.82      
2 A1 3117 2952 38.32      
3 A1 1706 1615 47.57      
4 A1 1520 1439 0.20      
5 A1 1136 1076 38.85      
6 A1 902 854 0.70      
7 A1 464 440 6.43      
8 A2 3597 3406 0.00      
9 A2 1422 1346 0.00      
10 A2 1087 1029 0.00      
11 A2 287 272 0.00      
12 B1 3595 3404 0.00      
13 B1 3166 2998 27.78      
14 B1 1390 1316 0.33      
15 B1 862 817 0.76      
16 B1 421 399 110.43      
17 B2 3507 3321 0.06      
18 B2 1697 1607 2.63      
19 B2 1417 1342 26.30      
20 B2 1124 1065 80.41      
21 B2 817 773 442.17      

Unscaled Zero Point Vibrational Energy (zpe) 18368.0 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 17394.5 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 M06-2X/6-31G*
ABC
1.17913 0.30409 0.27526

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.554
N2 0.000 1.258 -0.184
N3 0.000 -1.258 -0.184
H4 0.879 0.000 1.204
H5 -0.879 0.000 1.204
H6 0.816 1.307 -0.790
H7 -0.816 1.307 -0.790
H8 -0.816 -1.307 -0.790
H9 0.816 -1.307 -0.790

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45801.45801.09371.09372.04472.04472.04472.0447
N21.45802.51552.06912.06911.01811.01812.75912.7591
N31.45802.51552.06912.06912.75912.75911.01811.0181
H41.09372.06912.06911.75902.38522.92582.92582.3852
H51.09372.06912.06911.75902.92582.38522.38522.9258
H62.04471.01812.75912.38522.92581.63253.08222.6143
H72.04471.01812.75912.92582.38521.63252.61433.0822
H82.04472.75911.01812.92582.38523.08222.61431.6325
H92.04472.75911.01812.38522.92582.61433.08221.6325

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.070 C1 N2 H7 110.070
C1 N3 H8 110.070 C1 N3 H9 110.070
N2 C1 N3 119.229 N2 C1 H4 107.499
N2 C1 H5 107.499 N3 C1 H4 107.499
N3 C1 H5 107.499 H4 C1 H5 107.051
H6 N2 H7 106.602 H8 N3 H9 106.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 N -0.736      
3 N -0.736      
4 H 0.174      
5 H 0.174      
6 H 0.302      
7 H 0.302      
8 H 0.302      
9 H 0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.100 2.100
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.707 0.000 0.000
y 0.000 -26.348 0.000
z 0.000 0.000 -17.820
Traceless
 xyz
x 5.377 0.000 0.000
y 0.000 -9.084 0.000
z 0.000 0.000 3.708
Polar
3z2-r27.415
x2-y29.641
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.929 0.000 0.000
y 0.000 3.802 0.000
z 0.000 0.000 3.648


<r2> (average value of r2) Å2
<r2> 53.576
(<r2>)1/2 7.320