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All results from a given calculation for NH2CCNH2 (Diaminoacetylene)

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 C2 1A
Energy calculated at M06-2X/6-31G**
 hartrees
Energy at 0K-187.957779
Energy at 298.15K-187.961905
HF Energy-187.957779
Nuclear repulsion energy101.886709
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 A 3676 3494 24.78      
2 A 3577 3400 4.14      
3 A 2435 2314 0.13      
4 A 1652 1570 11.72      
5 A 1197 1137 0.27      
6 A 843 801 2.22      
7 A 568 539 156.99      
8 A 437 416 10.90      
9 A 414 393 24.90      
10 A 223 212 19.20      
11 B 3676 3494 24.38      
12 B 3580 3402 15.55      
13 B 1655 1573 39.89      
14 B 1394 1325 107.13      
15 B 1197 1137 0.31      
16 B 621 590 372.23      
17 B 436 415 29.54      
18 B 223 212 21.05      

Unscaled Zero Point Vibrational Energy (zpe) 13901.2 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 13211.7 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 M06-2X/6-31G**
ABC
5.16050 0.11934 0.11932

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.005 0.606 0.031
C2 -0.005 -0.606 0.031
N3 -0.005 1.960 -0.071
N4 0.005 -1.960 -0.071
H5 -0.339 2.448 0.749
H6 0.845 2.368 -0.437
H7 0.339 -2.448 0.749
H8 -0.845 -2.368 -0.437

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8
C11.21111.35832.56752.00762.00743.15503.1274
C21.21112.56751.35833.15503.12742.00762.0074
N31.35832.56753.92001.01121.01134.49724.4235
N42.56751.35833.92004.49724.42351.01121.0113
H52.00763.15501.01124.49721.67814.94374.9855
H62.00743.12741.01134.42351.67814.98555.0277
H73.15502.00764.49721.01124.94374.98551.6781
H83.12742.00744.42351.01134.98555.02771.6781

picture of Diaminoacetylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 175.616 C1 N3 H5 115.047
C1 N3 H6 115.019 C2 C1 N3 175.616
C2 N4 H7 115.047 C2 N4 H8 115.019
H5 N3 H6 112.140 H7 N4 H8 112.140
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 0.184      
2 C 0.184      
3 N -0.766      
4 N -0.766      
5 H 0.290      
6 H 0.292      
7 H 0.290      
8 H 0.292      


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 1.649 1.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.118 4.489 0.000
y 4.489 -13.615 0.000
z 0.000 0.000 -23.242
Traceless
 xyz
x -4.690 4.489 0.000
y 4.489 9.566 0.000
z 0.000 0.000 -4.875
Polar
3z2-r2-9.751
x2-y2-9.504
xy4.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.715 0.263 0.000
y 0.263 8.721 0.000
z 0.000 0.000 2.711


<r2> (average value of r2) Å2
<r2> 96.958
(<r2>)1/2 9.847