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 C5H7N (Cyclobutanecarbonitrile)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-249.297102
Energy at 298.15K-249.290402
HF Energy-249.472019
Nuclear repulsion energy210.597480
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 B3LYP/6-31G(2df,p)
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' 3141 3031 39.71      
2 A' 3119 3009 9.26      
3 A' 3079 2971 1.62      
4 A' 3070 2962 6.86      
5 A' 3068 2960 24.72      
6 A' 2352 2270 14.96      
7 A' 1509 1456 0.77      
8 A' 1488 1436 2.67      
9 A' 1354 1307 2.22      
10 A' 1282 1237 0.78      
11 A' 1238 1194 0.17      
12 A' 1126 1087 1.80      
13 A' 1074 1036 0.03      
14 A' 959 925 0.44      
15 A' 897 865 1.50      
16 A' 750 724 1.38      
17 A' 593 572 1.03      
18 A' 531 512 0.49      
19 A' 263 254 2.26      
20 A' 123 118 2.80      
21 A" 3133 3023 11.46      
22 A" 3075 2968 45.10      
23 A" 1480 1428 1.16      
24 A" 1280 1235 0.84      
25 A" 1260 1215 0.06      
26 A" 1244 1200 0.15      
27 A" 1209 1167 0.22      
28 A" 1029 993 0.11      
29 A" 948 915 0.18      
30 A" 938 905 1.36      
31 A" 787 760 0.90      
32 A" 545 526 0.07      
33 A" 182 176 4.97      

Unscaled Zero Point Vibrational Energy (zpe) 24061.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 23219.2 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 B3LYP/6-31G(2df,p)
ABC
0.32407 0.07929 0.06996

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.611 2.122 0.000
C2 0.732 1.370 0.000
C3 -0.352 0.403 0.000
C4 -0.843 -1.712 0.000
C5 -0.352 -0.720 1.087
C6 -0.352 -0.720 -1.087
H7 -1.306 0.937 0.000
H8 -1.932 -1.808 0.000
H9 -0.405 -2.711 0.000
H10 0.665 -0.944 1.418
H11 -0.981 -0.553 1.963
H12 0.665 -0.944 -1.418
H13 -0.981 -0.553 -1.963

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13
N11.15662.60894.55203.62073.62073.14795.29165.23693.50734.21043.50734.2104
C21.15661.45253.46122.59312.59312.08324.14734.23682.71423.23822.71423.2382
C32.60891.45252.17111.56291.56291.09392.71803.11452.20362.27212.20362.2721
C44.55203.46122.17111.55181.55182.68961.09341.09112.20802.28352.20802.2835
C53.62072.59311.56291.55182.17472.20002.20582.26961.09221.09122.71273.1188
C63.62072.59311.56291.55182.17472.20002.20582.26962.71273.11881.09221.0912
H73.14792.08321.09392.68962.20002.20002.81643.75833.07132.48593.07132.4859
H85.29164.14732.71801.09342.20582.20582.81641.77403.08292.51643.08292.5164
H95.23694.23683.11451.09112.26962.26963.75831.77402.50612.97352.50612.9735
H103.50732.71422.20362.20801.09222.71273.07133.08292.50611.77772.83533.7802
H114.21043.23822.27212.28351.09123.11882.48592.51642.97351.77773.78023.9254
H123.50732.71422.20362.20802.71271.09223.07133.08292.50612.83533.78021.7777
H134.21043.23822.27212.28353.11881.09122.48592.51642.97353.78023.92541.7777

picture of Cyclobutanecarbonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 178.434 C2 C3 C5 118.507
C2 C3 C6 118.507 C2 C3 H7 108.545
C3 C5 C4 88.357 C3 C5 H10 111.015
C3 C5 H11 116.786 C3 C6 C4 88.357
C3 C6 H12 111.015 C3 C6 H13 116.786
C4 C5 H10 111.977 C4 C5 H11 118.489
C4 C6 H12 111.977 C4 C6 H13 118.489
C5 C3 C6 88.375 C5 C3 H7 110.829
C5 C4 C6 88.825 C5 C4 H8 111.822
C5 C4 H9 117.363 C6 C3 H7 110.829
C6 C4 H8 111.822 C6 C4 H9 117.363
H8 C4 H9 108.592 H10 C5 H11 108.949
H12 C6 H13 108.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.326      
2 C 0.261      
3 C -0.120      
4 C -0.216      
5 C -0.218      
6 C -0.218      
7 H 0.124      
8 H 0.113      
9 H 0.113      
10 H 0.128      
11 H 0.116      
12 H 0.128      
13 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.897 -3.009 0.000 4.177
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 157.611
(<r2>)1/2 12.554