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 CH3CH2CH2CN (Butanenitrile)

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-36.637736
Energy at 298.15K-36.644916
HF Energy-36.637736
Nuclear repulsion energy82.813583
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/CEP-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' 3122 3023 64.39      
2 A' 3060 2964 46.02      
3 A' 3053 2956 1.10      
4 A' 3032 2936 37.79      
5 A' 2252 2181 10.48      
6 A' 1519 1471 14.50      
7 A' 1507 1460 2.32      
8 A' 1489 1442 5.80      
9 A' 1431 1386 6.10      
10 A' 1381 1338 3.37      
11 A' 1312 1271 0.10      
12 A' 1118 1083 6.61      
13 A' 1054 1021 0.06      
14 A' 952 922 4.39      
15 A' 874 847 4.23      
16 A' 515 499 3.59      
17 A' 342 331 0.03      
18 A' 165 160 4.79      
19 A" 3132 3033 123.13      
20 A" 3109 3010 3.29      
21 A" 3090 2992 1.31      
22 A" 1513 1465 12.09      
23 A" 1320 1278 0.18      
24 A" 1258 1219 0.19      
25 A" 1127 1091 0.07      
26 A" 875 848 0.59      
27 A" 747 724 7.57      
28 A" 373 361 0.15      
29 A" 231 224 0.00      
30 A" 94 91 4.33      

Unscaled Zero Point Vibrational Energy (zpe) 22523.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 21812.0 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/CEP-31G
ABC
0.77661 0.07238 0.06880

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.671 0.364 0.000
C2 -1.487 0.493 0.000
C3 0.000 0.639 0.000
C4 0.741 -0.739 0.000
C5 2.283 -0.541 0.000
H6 0.290 1.226 0.889
H7 0.290 1.226 -0.889
H8 0.431 -1.318 0.887
H9 0.431 -1.318 -0.887
H10 2.802 -1.515 0.000
H11 2.614 0.018 0.894
H12 2.614 0.018 -0.894

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.19072.68473.58575.03533.20973.20973.63753.63755.78605.37035.3703
C21.19071.49412.54633.90902.11832.11832.78282.78284.73574.22364.2236
C32.68471.49411.56512.56991.10431.10432.19152.19153.53432.83112.8311
C43.58572.54631.56511.55402.20392.20391.10391.10392.20182.20862.2086
C55.03533.90902.56991.55402.80792.80792.19562.19561.10331.10531.1053
H63.20972.11831.10432.20392.80791.77812.54813.10613.82262.61843.1678
H73.20972.11831.10432.20392.80791.77813.10612.54813.82263.16782.6184
H83.63752.78282.19151.10392.19562.54813.10611.77442.53972.55953.1182
H93.63752.78282.19151.10392.19563.10612.54811.77442.53973.11822.5595
H105.78604.73573.53432.20181.10333.82263.82262.53972.53971.78471.7847
H115.37034.22362.83112.20861.10532.61843.16782.55953.11821.78471.7877
H125.37034.22362.83112.20861.10533.16782.61843.11822.55951.78471.7877

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.364 C2 C3 C4 112.666
C2 C3 H6 108.283 C2 C3 H7 108.283
C3 C4 C5 110.961 C3 C4 H8 109.167
C3 C4 H9 109.167 C4 C3 H6 110.102
C4 C3 H7 110.102 C4 C5 H10 110.766
C4 C5 H11 111.182 C4 C5 H12 111.182
C5 C4 H8 110.241 C5 C4 H9 110.241
H6 C3 H7 107.231 H8 C4 H9 106.968
H10 C5 H11 107.814 H10 C5 H12 107.814
H11 C5 H12 107.934
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.396      
2 C -0.592      
3 C -0.225      
4 C -0.221      
5 C -0.400      
6 H 0.160      
7 H 0.160      
8 H 0.142      
9 H 0.142      
10 H 0.181      
11 H 0.128      
12 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.403 0.105 0.000 4.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.910 0.988 0.000
y 0.988 -29.942 0.000
z 0.000 0.000 -30.065
Traceless
 xyz
x -13.906 0.988 0.000
y 0.988 7.045 0.000
z 0.000 0.000 6.861
Polar
3z2-r213.722
x2-y2-13.968
xy0.988
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.278 -0.287 0.000
y -0.287 5.618 0.000
z 0.000 0.000 5.180


<r2> (average value of r2) Å2
<r2> 131.389
(<r2>)1/2 11.462