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

using model chemistry: CID/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 CID/3-21G
 hartrees
Energy at 0K-209.267064
Energy at 298.15K-209.274621
HF Energy-208.831361
Nuclear repulsion energy158.544874
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 CID/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' 3208 2989 25.41      
2 A' 3203 2984 28.86      
3 A' 3146 2931 1.69      
4 A' 3132 2918 11.10      
5 A' 2429 2263 1.16      
6 A' 1624 1513 13.71      
7 A' 1619 1508 7.66      
8 A' 1531 1426 5.44      
9 A' 1446 1348 2.54      
10 A' 1267 1180 4.11      
11 A' 1216 1133 9.59      
12 A' 953 887 0.27      
13 A' 788 734 0.93      
14 A' 600 559 1.85      
15 A' 378 352 0.21      
16 A' 311 290 1.03      
17 A' 246 229 1.08      
18 A" 3204 2985 12.13      
19 A" 3198 2979 1.48      
20 A" 3128 2914 13.99      
21 A" 1608 1498 4.45      
22 A" 1606 1497 0.01      
23 A" 1512 1409 7.03      
24 A" 1408 1312 0.03      
25 A" 1178 1098 3.01      
26 A" 1023 953 1.18      
27 A" 1003 935 2.13      
28 A" 628 585 0.29      
29 A" 247 230 0.05      
30 A" 220 205 3.34      

Unscaled Zero Point Vibrational Energy (zpe) 23529.7 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 21920.3 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 CID/3-21G
ABC
0.26334 0.13105 0.09610

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.152 -2.215 0.000
C2 -0.103 -1.085 0.000
C3 -0.416 0.354 0.000
C4 0.152 1.024 1.278
C5 0.152 1.024 -1.278
H6 -1.505 0.456 0.000
H7 -0.112 2.083 1.279
H8 -0.256 0.558 2.176
H9 1.239 0.932 1.294
H10 -0.112 2.083 -1.279
H11 -0.256 0.558 -2.176
H12 1.239 0.932 -1.294

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15812.63093.48193.48193.14334.49213.54823.57154.49213.54823.5715
C21.15811.47292.47942.47942.08353.41692.73092.74643.41692.73092.7464
C32.63091.47291.55081.55081.09342.17222.19122.17882.17222.19122.1788
C43.48192.47941.55082.55572.16801.09161.09071.09112.77983.50872.7934
C53.48192.47941.55082.55572.16802.77983.50872.79341.09161.09071.0911
H63.14332.08351.09342.16802.16802.49442.51093.07052.49442.51093.0705
H74.49213.41692.17221.09162.77982.49441.77531.77532.55743.77893.1255
H83.54822.73092.19121.09073.50872.51091.77531.77533.77894.35153.7961
H93.57152.74642.17881.09112.79343.07051.77531.77533.12553.79612.5873
H104.49213.41692.17222.77981.09162.49442.55743.77893.12551.77531.7753
H113.54822.73092.19123.50871.09072.51093.77894.35153.79611.77531.7753
H123.57152.74642.17882.79341.09113.07053.12553.79612.58731.77531.7753

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 179.544 C2 C3 C4 110.145
C2 C3 C5 110.145 C2 C3 H6 107.647
C3 C4 H7 109.354 C3 C4 H8 110.905
C3 C4 H9 109.899 C3 C5 H10 109.354
C3 C5 H11 110.905 C3 C5 H12 109.899
C4 C3 C5 110.975 C4 C3 H6 108.925
C5 C3 H6 108.925 H7 C4 H8 108.878
H7 C4 H9 108.852 H8 C4 H9 108.916
H10 C5 H11 108.878 H10 C5 H12 108.852
H11 C5 H12 108.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability