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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-209.312677
Energy at 298.15K-209.320121
HF Energy-208.825884
Nuclear repulsion energy157.403294
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 MP2/3-21G*
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' 3174 3020 23.49      
2 A' 3169 3014 26.57      
3 A' 3100 2949 3.20      
4 A' 3089 2939 10.04      
5 A' 2135 2031 3.37      
6 A' 1607 1529 12.47      
7 A' 1601 1523 7.11      
8 A' 1502 1429 4.66      
9 A' 1416 1347 2.30      
10 A' 1244 1184 3.29      
11 A' 1191 1133 7.25      
12 A' 928 883 0.48      
13 A' 765 727 0.26      
14 A' 573 546 1.46      
15 A' 371 353 0.19      
16 A' 305 290 0.57      
17 A' 240 228 0.98      
18 A" 3171 3017 10.22      
19 A" 3165 3011 2.29      
20 A" 3088 2938 12.44      
21 A" 1591 1513 3.69      
22 A" 1589 1512 0.38      
23 A" 1484 1412 5.78      
24 A" 1385 1318 0.17      
25 A" 1154 1098 3.43      
26 A" 1008 959 1.38      
27 A" 983 935 1.65      
28 A" 597 568 0.57      
29 A" 250 238 0.02      
30 A" 210 200 2.61      

Unscaled Zero Point Vibrational Energy (zpe) 23042.7 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 21920.5 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 MP2/3-21G*
ABC
0.26217 0.12848 0.09463

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.153 -2.245 0.000
C2 -0.107 -1.085 0.000
C3 -0.417 0.359 0.000
C4 0.153 1.033 1.281
C5 0.153 1.033 -1.281
H6 -1.510 0.469 0.000
H7 -0.112 2.096 1.278
H8 -0.257 0.567 2.182
H9 1.243 0.939 1.295
H10 -0.112 2.096 -1.278
H11 -0.257 0.567 -2.182
H12 1.243 0.939 -1.295

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18882.66603.51933.51933.18234.53263.58233.60574.53263.58233.6057
C21.18881.47722.48872.48872.09283.42782.74052.75613.42782.74052.7561
C32.66601.47721.55531.55531.09772.17742.19742.18402.17742.19742.1840
C43.51932.48871.55532.56102.17321.09521.09431.09462.78283.51742.7980
C53.51932.48871.55532.56102.17322.78283.51742.79801.09521.09431.0946
H63.18232.09281.09772.17322.17322.49672.51783.07832.49672.51783.0783
H74.53263.42782.17741.09522.78282.49671.78211.78212.55543.78503.1292
H83.58232.74052.19741.09433.51742.51781.78211.78203.78504.36333.8043
H93.60572.75612.18401.09462.79803.07831.78211.78203.12923.80432.5891
H104.53263.42782.17742.78281.09522.49672.55543.78503.12921.78211.7821
H113.58232.74052.19743.51741.09432.51783.78504.36333.80431.78211.7820
H123.60572.75612.18402.79801.09463.07833.12923.80432.58911.78211.7820

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 179.467 C2 C3 C4 110.279
C2 C3 C5 110.279 C2 C3 H6 107.826
C3 C4 H7 109.239 C3 C4 H8 110.861
C3 C4 H9 109.791 C3 C5 H10 109.239
C3 C5 H11 110.861 C3 C5 H12 109.791
C4 C3 C5 110.835 C4 C3 H6 108.771
C5 C3 H6 108.771 H7 C4 H8 108.969
H7 C4 H9 108.944 H8 C4 H9 109.005
H10 C5 H11 108.969 H10 C5 H12 108.944
H11 C5 H12 109.005
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability