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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-264.022826
Energy at 298.15K-264.026720
HF Energy-264.022826
Nuclear repulsion energy178.997417
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/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3089 2950 0.00      
2 Ag 2391 2283 0.00      
3 Ag 1470 1403 0.00      
4 Ag 1390 1327 0.00      
5 Ag 1050 1003 0.00      
6 Ag 982 937 0.00      
7 Ag 521 497 0.00      
8 Ag 222 212 0.00      
9 Au 3154 3012 0.01      
10 Au 1211 1156 0.01      
11 Au 772 737 3.39      
12 Au 406 388 0.00      
13 Au 79 76 22.90      
14 Bg 3136 2995 0.00      
15 Bg 1317 1258 0.00      
16 Bg 1033 986 0.00      
17 Bg 367 351 0.00      
18 Bu 3099 2959 1.42      
19 Bu 2392 2284 15.88      
20 Bu 1475 1408 18.72      
21 Bu 1291 1232 1.49      
22 Bu 953 910 4.56      
23 Bu 531 507 2.13      
24 Bu 130 124 23.66      

Unscaled Zero Point Vibrational Energy (zpe) 16230.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15496.9 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/6-31+G**
ABC
0.85724 0.04948 0.04761

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.425 0.642 0.000
C2 -0.425 -0.642 0.000
C3 -0.425 1.831 0.000
C4 0.425 -1.831 0.000
N5 1.113 -2.761 0.000
N6 -1.113 2.761 0.000
H7 1.070 0.673 0.883
H8 1.070 0.673 -0.883
H9 -1.070 -0.673 0.883
H10 -1.070 -0.673 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53951.46122.47303.47242.61871.09411.09412.17782.1778
C21.53952.47301.46122.61873.47242.17782.17781.09411.0941
C31.46122.47303.75924.84311.15762.08702.08702.73222.7322
C42.47301.46123.75921.15764.84312.73222.73222.08702.0870
N53.47242.61874.84311.15765.95493.54613.54613.14803.1480
N62.61873.47241.15764.84315.95493.14803.14803.54613.5461
H71.09412.17782.08702.73223.54613.14801.76552.52833.0837
H81.09412.17782.08702.73223.54613.14801.76553.08372.5283
H92.17781.09412.73222.08703.14803.54612.52833.08371.7655
H102.17781.09412.73222.08703.14803.54613.08372.52831.7655

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.975 C1 C2 H9 110.427
C1 C2 H10 110.427 C1 C3 N6 179.034
C2 C1 C3 110.975 C2 C1 H7 110.427
C2 C1 H8 110.427 C2 C4 N5 179.034
C3 C1 H7 108.668 C3 C1 H8 108.668
C4 C2 H9 108.668 C4 C2 H10 108.668
H7 C1 H8 107.583 H9 C2 H10 107.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.078      
2 C -0.078      
3 C 0.070      
4 C 0.070      
5 N -0.460      
6 N -0.460      
7 H 0.234      
8 H 0.234      
9 H 0.234      
10 H 0.234      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.708 11.877 0.000
y 11.877 -56.951 0.000
z 0.000 0.000 -33.209
Traceless
 xyz
x 7.372 11.877 0.000
y 11.877 -21.492 0.000
z 0.000 0.000 14.120
Polar
3z2-r228.240
x2-y219.242
xy11.877
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.265 -2.498 0.000
y -2.498 10.294 0.000
z 0.000 0.000 5.452


<r2> (average value of r2) Å2
<r2> 209.924
(<r2>)1/2 14.489