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

using model chemistry: mPW1PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-211.402244
Energy at 298.15K-211.409506
HF Energy-211.402244
Nuclear repulsion energy159.760888
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 mPW1PW91/aug-cc-pVTZ
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' 3148 3016 16.69      
2 A' 3142 3010 27.78      
3 A' 3064 2936 15.26      
4 A' 3056 2928 1.92      
5 A' 2373 2274 13.52      
6 A' 1511 1447 10.13      
7 A' 1500 1437 10.09      
8 A' 1423 1363 3.29      
9 A' 1353 1296 6.14      
10 A' 1199 1149 3.10      
11 A' 1129 1082 4.49      
12 A' 941 901 1.05      
13 A' 780 748 0.51      
14 A' 557 534 1.33      
15 A' 350 335 0.25      
16 A' 281 269 1.23      
17 A' 217 208 2.06      
18 A" 3147 3015 10.88      
19 A" 3138 3007 0.15      
20 A" 3062 2934 14.02      
21 A" 1489 1426 3.37      
22 A" 1487 1424 1.06      
23 A" 1402 1343 5.08      
24 A" 1324 1268 0.23      
25 A" 1140 1092 2.53      
26 A" 979 938 0.25      
27 A" 939 900 2.12      
28 A" 582 557 0.01      
29 A" 220 211 0.03      
30 A" 189 181 4.92      

Unscaled Zero Point Vibrational Energy (zpe) 22560.0 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 21614.7 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 mPW1PW91/aug-cc-pVTZ
ABC
0.26698 0.13346 0.09745

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.398 -2.167 0.000
C2 0.027 -1.079 0.000
C3 -0.434 0.308 0.000
C4 0.027 1.023 1.270
C5 0.027 1.023 -1.270
H6 -1.526 0.264 0.000
H7 -0.366 2.039 1.280
H8 -0.321 0.509 2.164
H9 1.115 1.076 1.308
H10 -0.366 2.039 -1.280
H11 -0.321 0.509 -2.164
H12 1.115 1.076 -1.308

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.14882.61033.45353.45353.10034.46253.51583.56944.46253.51583.5694
C21.14881.46142.45662.45662.05373.39412.70702.74603.39412.70702.7460
C32.61031.46141.52901.52901.09352.15462.17622.16782.15462.17622.1678
C43.45352.45661.52902.54022.14531.08961.08841.08942.77313.48972.7989
C53.45352.45661.52902.54022.14532.77313.48972.79891.08961.08841.0894
H63.10032.05371.09352.14532.14532.47702.48883.05692.47702.48883.0569
H74.46253.39412.15461.08962.77312.47701.76771.76672.56003.76883.1337
H83.51582.70702.17621.08843.48972.48881.76771.76503.76884.32783.8000
H93.56942.74602.16781.08942.79893.05691.76671.76503.13373.80002.6167
H104.46253.39412.15462.77311.08962.47702.56003.76883.13371.76771.7667
H113.51582.70702.17623.48971.08842.48883.76884.32783.80001.76771.7650
H123.56942.74602.16782.79891.08943.05693.13373.80002.61671.76671.7650

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 179.531 C2 C3 C4 110.445
C2 C3 C5 110.445 C2 C3 H6 106.100
C3 C4 H7 109.593 C3 C4 H8 111.379
C3 C4 H9 110.651 C3 C5 H10 109.593
C3 C5 H11 111.379 C3 C5 H12 110.651
C4 C3 C5 112.334 C4 C3 H6 108.645
C5 C3 H6 108.645 H7 C4 H8 108.507
H7 C4 H9 108.352 H8 C4 H9 108.277
H10 C5 H11 108.507 H10 C5 H12 108.352
H11 C5 H12 108.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.722      
2 C 0.434      
3 C 0.313      
4 C -0.676      
5 C -0.676      
6 H 0.131      
7 H 0.200      
8 H 0.179      
9 H 0.219      
10 H 0.200      
11 H 0.179      
12 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.193 4.013 0.000 4.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.569 1.780 0.000
y 1.780 -39.574 0.000
z 0.000 0.000 -30.050
Traceless
 xyz
x 4.243 1.780 0.000
y 1.780 -9.264 0.000
z 0.000 0.000 5.021
Polar
3z2-r210.042
x2-y29.005
xy1.780
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.770 -0.519 0.000
y -0.519 9.357 0.000
z 0.000 0.000 7.634


<r2> (average value of r2) Å2
<r2> 128.031
(<r2>)1/2 11.315