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All results from a given calculation for CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-211.315890
Energy at 298.15K-211.323128
HF Energy-211.315890
Nuclear repulsion energy158.798928
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 B3PW91/6-31+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 A' 3154 3028 19.42      
2 A' 3147 3022 31.72      
3 A' 3062 2940 18.73      
4 A' 3055 2934 3.32      
5 A' 2357 2263 13.47      
6 A' 1512 1451 13.53      
7 A' 1502 1443 10.39      
8 A' 1425 1368 4.28      
9 A' 1346 1293 6.43      
10 A' 1193 1146 3.39      
11 A' 1125 1080 5.23      
12 A' 937 900 1.03      
13 A' 776 745 0.49      
14 A' 554 531 1.29      
15 A' 352 338 0.19      
16 A' 285 274 0.88      
17 A' 220 211 1.95      
18 A" 3153 3027 11.58      
19 A" 3144 3019 0.68      
20 A" 3060 2938 19.16      
21 A" 1490 1430 5.02      
22 A" 1489 1429 0.26      
23 A" 1403 1347 5.85      
24 A" 1318 1266 0.29      
25 A" 1135 1089 2.83      
26 A" 974 935 0.18      
27 A" 939 902 2.38      
28 A" 572 550 0.15      
29 A" 227 218 0.02      
30 A" 187 179 4.51      

Unscaled Zero Point Vibrational Energy (zpe) 22546.7 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 21647.1 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 B3PW91/6-31+G**
ABC
0.26436 0.13167 0.09622

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.400 -2.184 0.000
C2 0.027 -1.083 0.000
C3 -0.435 0.311 0.000
C4 0.027 1.030 1.277
C5 0.027 1.030 -1.277
H6 -1.533 0.268 0.000
H7 -0.369 2.050 1.286
H8 -0.323 0.514 2.174
H9 1.119 1.085 1.316
H10 -0.369 2.050 -1.286
H11 -0.323 0.514 -2.174
H12 1.119 1.085 -1.316

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16182.63073.47813.47813.12184.49123.53963.59674.49123.53963.5967
C21.16181.46892.46902.46902.06393.41022.72072.76183.41022.72072.7618
C32.63071.46891.53641.53641.09852.16412.18662.17912.16412.18662.1791
C43.47812.46901.53642.55302.15501.09431.09321.09412.78683.50672.8140
C53.47812.46901.53642.55302.15502.78683.50672.81401.09431.09321.0941
H63.12182.06391.09852.15502.15502.48682.50013.07152.48682.50013.0715
H74.49123.41022.16411.09432.78682.48681.77461.77422.57283.78643.1499
H83.53962.72072.18661.09323.50672.50011.77461.77293.78644.34853.8200
H93.59672.76182.17911.09412.81403.07151.77421.77293.14993.82002.6329
H104.49123.41022.16412.78681.09432.48682.57283.78643.14991.77461.7742
H113.53962.72072.18663.50671.09322.50013.78644.34853.82001.77461.7729
H123.59672.76182.17912.81401.09413.07153.14993.82002.63291.77421.7729

picture of Propanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.650 C2 C3 C4 110.459
C2 C3 C5 110.459 C2 C3 H6 106.104
C3 C4 H7 109.553 C3 C4 H8 111.398
C3 C4 H9 110.747 C3 C5 H10 109.553
C3 C5 H11 111.398 C3 C5 H12 110.747
C4 C3 C5 112.373 C4 C3 H6 108.606
C5 C3 H6 108.606 H7 C4 H8 108.430
H7 C4 H9 108.331 H8 C4 H9 108.298
H10 C5 H11 108.430 H10 C5 H12 108.331
H11 C5 H12 108.298
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.483      
2 C 0.144      
3 C 0.201      
4 C -0.564      
5 C -0.564      
6 H 0.202      
7 H 0.171      
8 H 0.181      
9 H 0.180      
10 H 0.171      
11 H 0.181      
12 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.195 4.042 0.000 4.215
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.711 1.793 0.000
y 1.793 -39.803 0.000
z 0.000 0.000 -30.135
Traceless
 xyz
x 4.257 1.793 0.000
y 1.793 -9.380 0.000
z 0.000 0.000 5.122
Polar
3z2-r210.244
x2-y29.091
xy1.793
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.285 -0.661 0.000
y -0.661 9.102 0.000
z 0.000 0.000 6.958


<r2> (average value of r2) Å2
<r2> 129.440
(<r2>)1/2 11.377