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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: BLYP/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 BLYP/6-31+G**
 hartrees
Energy at 0K-264.231996
Energy at 298.15K-264.235719
Nuclear repulsion energy176.866593
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/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 2984 2968 0.00      
2 Ag 2256 2244 0.00      
3 Ag 1438 1430 0.00      
4 Ag 1336 1329 0.00      
5 Ag 972 967 0.00      
6 Ag 934 929 0.00      
7 Ag 490 487 0.00      
8 Ag 214 212 0.00      
9 Au 3037 3021 1.17      
10 Au 1177 1171 0.00      
11 Au 752 748 2.46      
12 Au 384 382 0.00      
13 Au 77 77 21.79      
14 Bg 3019 3003 0.00      
15 Bg 1278 1271 0.00      
16 Bg 1006 1000 0.00      
17 Bg 347 345 0.00      
18 Bu 2993 2977 4.30      
19 Bu 2257 2246 9.72      
20 Bu 1444 1436 13.84      
21 Bu 1258 1251 3.24      
22 Bu 901 897 3.36      
23 Bu 503 500 2.95      
24 Bu 127 127 22.24      

Unscaled Zero Point Vibrational Energy (zpe) 15590.7 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 15508.1 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/6-31+G**
ABC
0.84211 0.04818 0.04637

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.783 0.000
C2 0.000 -0.783 0.000
C3 -1.369 1.324 0.000
C4 1.369 -1.324 0.000
N5 2.466 -1.741 0.000
N6 -2.466 1.741 0.000
H7 0.535 1.160 0.887
H8 0.535 1.160 -0.887
H9 -0.535 -1.160 0.887
H10 -0.535 -1.160 -0.887

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.56581.47222.51253.52872.64581.10241.10242.20192.2019
C21.56582.51251.47222.64583.52872.20192.20191.10241.1024
C31.47222.51253.80894.90941.17372.10682.10682.76642.7664
C42.51251.47223.80891.17374.90942.76642.76642.10682.1068
N53.52872.64584.90941.17376.03753.59633.59633.18283.1828
N62.64583.52871.17374.90946.03753.18283.18283.59633.5963
H71.10242.20192.10682.76643.59633.18281.77452.55473.1105
H81.10242.20192.10682.76643.59633.18281.77453.11052.5547
H92.20191.10242.76642.10683.18283.59632.55473.11051.7745
H102.20191.10242.76642.10683.18283.59633.11052.55471.7745

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.548 C1 C2 H9 110.008
C1 C2 H10 110.008 C1 C3 N6 179.266
C2 C1 C3 111.548 C2 C1 H7 110.008
C2 C1 H8 110.008 C2 C4 N5 179.266
C3 C1 H7 108.989 C3 C1 H8 108.989
C4 C2 H9 108.989 C4 C2 H10 108.989
H7 C1 H8 107.190 H9 C2 H10 107.190
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.142      
2 C -0.142      
3 C 0.238      
4 C 0.238      
5 N -0.501      
6 N -0.501      
7 H 0.203      
8 H 0.203      
9 H 0.203      
10 H 0.203      


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 -55.013 13.746 0.000
y 13.746 -40.990 0.000
z 0.000 0.000 -33.708
Traceless
 xyz
x -17.664 13.746 0.000
y 13.746 3.371 0.000
z 0.000 0.000 14.293
Polar
3z2-r228.587
x2-y2-14.023
xy13.746
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 215.140
(<r2>)1/2 14.668