return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H5N ((Z)-2-Butenenitrile)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-210.113620
Energy at 298.15K-210.118174
Nuclear repulsion energy141.942281
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 B3PW91/6-311G*
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 3190 3071 6.21      
2 A 3164 3046 11.25      
3 A 3136 3019 2.86      
4 A 3036 2923 10.39      
5 A 2341 2253 17.36      
6 A 1704 1641 16.70      
7 A 1493 1437 21.06      
8 A 1436 1382 6.97      
9 A 1402 1350 4.63      
10 A 1267 1219 0.64      
11 A 1130 1088 0.19      
12 A 975 939 16.01      
13 A 913 879 2.21      
14 A 672 647 1.68      
15 A 400 385 0.17      
16 A 159 153 4.47      
17 A 3088 2973 12.21      
18 A 1490 1435 11.64      
19 A 1068 1028 0.32      
20 A 985 948 0.54      
21 A 752 724 45.90      
22 A 537 517 3.82      
23 A 291 281 2.72      
24 A 148 142 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 17387.9 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 16739.3 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 B3PW91/6-311G*
ABC
0.40686 0.11516 0.09127

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.221 0.252 0.000
N2 -2.221 -0.329 0.000
C3 0.000 0.983 0.000
H4 -0.096 2.065 0.000
C5 1.208 0.404 0.000
H6 2.072 1.066 0.000
C7 1.486 -1.057 0.000
H8 0.572 -1.654 0.000
H9 2.081 -1.334 0.877
H10 2.081 -1.334 -0.877

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.15661.42322.13382.43353.39193.00652.61683.76643.7664
N21.15662.57973.20103.50654.51393.77773.09184.50424.5042
C31.42322.57971.08601.33952.07352.52412.69883.23553.2355
H42.13383.20101.08602.11152.38683.50013.77884.13044.1304
C52.43353.50651.33952.11151.08851.48772.15442.13362.1336
H63.39194.51392.07352.38681.08852.20313.10652.55532.5553
C73.00653.77772.52413.50011.48772.20311.09121.09571.0957
H82.61683.09182.69883.77882.15443.10651.09121.77461.7746
H93.76644.50423.23554.13042.13362.55531.09571.77461.7546
H103.76644.50423.23554.13042.13362.55531.09571.77461.7546

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.857 C1 C3 C5 123.461
N2 C1 C3 179.204 C3 C5 H6 116.925
C3 C5 C7 126.371 H4 C3 C5 120.681
C5 C7 H8 112.403 C5 C7 H9 110.440
C5 C7 H10 110.440 H6 C5 C7 116.704
H8 C7 H9 108.478 H8 C7 H10 108.478
H9 C7 H10 106.390
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.100      
2 N -0.278      
3 C -0.207      
4 H 0.249      
5 C -0.143      
6 H 0.224      
7 C -0.696      
8 H 0.260      
9 H 0.246      
10 H 0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.072 1.150 0.000 4.232
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.035 -2.435 0.000
y -2.435 -27.052 0.000
z 0.000 0.000 -30.909
Traceless
 xyz
x -6.055 -2.435 0.000
y -2.435 5.920 0.000
z 0.000 0.000 0.135
Polar
3z2-r20.270
x2-y2-7.983
xy-2.435
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> 125.985
(<r2>)1/2 11.224