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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-151.139970
Energy at 298.15K-151.147933
HF Energy-151.139970
Nuclear repulsion energy82.069130
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 BLYP/cc-pVDZ
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 3309 3314 12.82      
2 A1 2954 2959 45.89      
3 A1 1609 1611 21.22      
4 A1 1417 1419 0.01      
5 A1 1076 1077 21.66      
6 A1 834 835 0.29      
7 A1 434 434 6.01      
8 A2 3384 3390 0.00      
9 A2 1352 1354 0.00      
10 A2 1056 1058 0.00      
11 A2 271 272 0.00      
12 B1 3383 3388 7.90      
13 B1 2996 3001 31.26      
14 B1 1330 1332 1.76      
15 B1 829 830 0.24      
16 B1 407 407 74.42      
17 B2 3308 3314 0.46      
18 B2 1599 1602 0.12      
19 B2 1338 1340 25.04      
20 B2 1022 1023 39.55      
21 B2 798 800 395.21      

Unscaled Zero Point Vibrational Energy (zpe) 17352.3 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 17380.1 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 BLYP/cc-pVDZ
ABC
1.15864 0.29468 0.26699

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.556
N2 0.000 1.282 -0.180
N3 0.000 -1.282 -0.180
H4 0.893 0.000 1.217
H5 -0.893 0.000 1.217
H6 0.819 1.308 -0.811
H7 -0.819 1.308 -0.811
H8 -0.819 -1.308 -0.811
H9 0.819 -1.308 -0.811

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.47811.47811.11051.11052.06162.06162.06162.0616
N21.47812.56322.09542.09541.03381.03382.78842.7884
N31.47812.56322.09542.09542.78842.78841.03381.0338
H41.11052.09542.09541.78532.41412.95822.95822.4141
H51.11052.09542.09541.78532.95822.41412.41412.9582
H62.06161.03382.78842.41412.95821.63743.08652.6164
H72.06161.03382.78842.95822.41411.63742.61643.0865
H82.06162.78841.03382.95822.41413.08652.61641.6374
H92.06162.78841.03382.41412.95822.61643.08651.6374

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 109.041 C1 N2 H7 109.041
C1 N3 H8 109.041 C1 N3 H9 109.041
N2 C1 N3 120.239 N2 C1 H4 107.239
N2 C1 H5 107.239 N3 C1 H4 107.239
N3 C1 H5 107.239 H4 C1 H5 106.995
H6 N2 H7 104.738 H8 N3 H9 104.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.045      
2 N -0.134      
3 N -0.134      
4 H 0.016      
5 H 0.016      
6 H 0.048      
7 H 0.048      
8 H 0.048      
9 H 0.048      


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 -1.794 1.794
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.352 0.000 0.000
y 0.000 -25.362 0.000
z 0.000 0.000 -18.209
Traceless
 xyz
x 4.434 0.000 0.000
y 0.000 -7.582 0.000
z 0.000 0.000 3.148
Polar
3z2-r26.296
x2-y28.011
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.251 0.000 0.000
y 0.000 4.479 0.000
z 0.000 0.000 4.185


<r2> (average value of r2) Å2
<r2> 54.700
(<r2>)1/2 7.396