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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: M06-2X/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-151.203212
Energy at 298.15K-151.211194
HF Energy-151.203212
Nuclear repulsion energy83.367592
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/aug-cc-pVTZ
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 3521 3365 0.03      
2 A1 3095 2958 26.40      
3 A1 1659 1585 46.52      
4 A1 1503 1437 0.24      
5 A1 1101 1052 38.48      
6 A1 848 811 6.25      
7 A1 461 440 1.71      
8 A2 3609 3449 0.00      
9 A2 1407 1345 0.00      
10 A2 1076 1028 0.00      
11 A2 257 246 0.00      
12 B1 3606 3446 9.12      
13 B1 3139 3000 18.33      
14 B1 1366 1305 0.18      
15 B1 861 823 0.31      
16 B1 380 363 80.02      
17 B2 3523 3367 4.60      
18 B2 1650 1577 9.13      
19 B2 1405 1343 19.00      
20 B2 1105 1056 95.81      
21 B2 762 729 376.21      

Unscaled Zero Point Vibrational Energy (zpe) 18166.8 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 17362.0 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 M06-2X/aug-cc-pVTZ
ABC
1.18409 0.30471 0.27596

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.554
N2 0.000 1.253 -0.186
N3 0.000 -1.253 -0.186
H4 0.877 0.000 1.201
H5 -0.877 0.000 1.201
H6 0.816 1.326 -0.780
H7 -0.816 1.326 -0.780
H8 -0.816 -1.326 -0.780
H9 0.816 -1.326 -0.780

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45551.45551.08931.08932.05062.05062.05062.0506
N21.45552.50682.06462.06461.01241.01242.77012.7701
N31.45552.50682.06462.06462.77012.77011.01241.0124
H41.08932.06462.06461.75302.38462.92382.92382.3846
H51.08932.06462.06461.75302.92382.38462.38462.9238
H62.05061.01242.77012.38462.92381.63303.11462.6522
H72.05061.01242.77012.92382.38461.63302.65223.1146
H82.05062.77011.01242.92382.38463.11462.65221.6330
H92.05062.77011.01242.38462.92382.65223.11461.6330

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 111.111 C1 N2 H7 111.111
C1 N3 H8 111.111 C1 N3 H9 111.111
N2 C1 N3 118.884 N2 C1 H4 107.570
N2 C1 H5 107.570 N3 C1 H4 107.570
N3 C1 H5 107.570 H4 C1 H5 107.150
H6 N2 H7 107.516 H8 N3 H9 107.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 N -0.597      
3 N -0.597      
4 H 0.399      
5 H 0.399      
6 H 0.130      
7 H 0.130      
8 H 0.130      
9 H 0.130      


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 -1.718 1.718
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.041 0.000 0.000
y 0.000 -26.402 0.000
z 0.000 0.000 -18.696
Traceless
 xyz
x 5.508 0.000 0.000
y 0.000 -8.533 0.000
z 0.000 0.000 3.025
Polar
3z2-r26.051
x2-y29.361
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.696 0.000 0.000
y 0.000 5.725 0.000
z 0.000 0.000 5.013


<r2> (average value of r2) Å2
<r2> 53.812
(<r2>)1/2 7.336