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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-151.071690
Energy at 298.15K-151.079643
HF Energy-151.071690
Nuclear repulsion energy83.207966
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 HSEh1PBE/aug-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 3518 3385 1.23      
2 A1 3074 2958 34.50      
3 A1 1649 1586 42.61      
4 A1 1463 1408 0.71      
5 A1 1097 1056 32.88      
6 A1 845 813 5.92      
7 A1 454 437 1.69      
8 A2 3610 3474 0.00      
9 A2 1387 1335 0.00      
10 A2 1069 1028 0.00      
11 A2 248 239 0.00      
12 B1 3608 3471 2.35      
13 B1 3122 3004 24.17      
14 B1 1358 1307 0.37      
15 B1 846 814 0.08      
16 B1 380 366 79.85      
17 B2 3518 3385 3.29      
18 B2 1641 1579 9.34      
19 B2 1372 1320 18.15      
20 B2 1110 1068 97.85      
21 B2 761 732 367.89      

Unscaled Zero Point Vibrational Energy (zpe) 18064.9 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 17382.1 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 HSEh1PBE/aug-cc-pVDZ
ABC
1.18734 0.30304 0.27499

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.549
N2 0.000 1.257 -0.183
N3 0.000 -1.257 -0.183
H4 0.882 0.000 1.204
H5 -0.882 0.000 1.204
H6 0.817 1.332 -0.783
H7 -0.817 1.332 -0.783
H8 -0.817 -1.332 -0.783
H9 0.817 -1.332 -0.783

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45421.45421.09881.09882.05292.05292.05292.0529
N21.45422.51302.06922.06921.01651.01652.77962.7796
N31.45422.51302.06922.06922.77962.77961.01651.0165
H41.09882.06922.06921.76412.39272.93412.93412.3927
H51.09882.06922.06921.76412.93412.39272.39272.9341
H62.05291.01652.77962.39272.93411.63483.12502.6633
H72.05291.01652.77962.93412.39271.63482.66333.1250
H82.05292.77961.01652.93412.39273.12502.66331.6348
H92.05292.77961.01652.39272.93412.66333.12501.6348

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 111.147 C1 N2 H7 111.147
C1 N3 H8 111.147 C1 N3 H9 111.147
N2 C1 N3 119.548 N2 C1 H4 107.471
N2 C1 H5 107.471 N3 C1 H4 107.471
N3 C1 H5 107.471 H4 C1 H5 106.777
H6 N2 H7 107.064 H8 N3 H9 107.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.886      
2 N -0.162      
3 N -0.162      
4 H -0.186      
5 H -0.186      
6 H -0.047      
7 H -0.047      
8 H -0.047      
9 H -0.047      


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 -1.757 1.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.086 0.000 0.000
y 0.000 -26.390 0.000
z 0.000 0.000 -18.750
Traceless
 xyz
x 5.484 0.000 0.000
y 0.000 -8.472 0.000
z 0.000 0.000 2.988
Polar
3z2-r25.975
x2-y29.304
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.797 0.000 0.000
y 0.000 6.009 0.000
z 0.000 0.000 5.188


<r2> (average value of r2) Å2
<r2> 54.009
(<r2>)1/2 7.349