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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-209.320134
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 3030 23.49      
2 A' 3169 3025 26.57      
3 A' 3100 2959 3.20      
4 A' 3089 2949 10.04      
5 A' 2135 2038 3.37      
6 A' 1607 1534 12.47      
7 A' 1601 1529 7.11      
8 A' 1502 1434 4.66      
9 A' 1416 1351 2.30      
10 A' 1244 1188 3.29      
11 A' 1191 1137 7.25      
12 A' 928 886 0.48      
13 A' 765 730 0.26      
14 A' 573 547 1.46      
15 A' 371 354 0.19      
16 A' 305 291 0.57      
17 A' 240 229 0.98      
18 A" 3171 3027 10.22      
19 A" 3165 3021 2.29      
20 A" 3088 2948 12.44      
21 A" 1591 1518 3.69      
22 A" 1589 1517 0.38      
23 A" 1484 1416 5.78      
24 A" 1385 1322 0.17      
25 A" 1154 1102 3.43      
26 A" 1008 962 1.38      
27 A" 983 938 1.65      
28 A" 597 569 0.57      
29 A" 250 239 0.02      
30 A" 210 201 2.61      

Unscaled Zero Point Vibrational Energy (zpe) 23042.7 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 21994.3 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