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

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-210.771139
Energy at 298.15K-210.778456
HF Energy-210.006028
Nuclear repulsion energy158.649112
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 QCISD/6-31G**
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' 3206 3019 24.50      
2 A' 3201 3014 42.55      
3 A' 3119 2936 7.45      
4 A' 3114 2932 13.82      
5 A' 2342 2204 0.93      
6 A' 1567 1475 7.38      
7 A' 1559 1468 5.21      
8 A' 1481 1394 1.97      
9 A' 1399 1317 6.90      
10 A' 1236 1164 1.81      
11 A' 1161 1093 3.69      
12 A' 962 905 0.20      
13 A' 786 740 1.10      
14 A' 551 518 0.84      
15 A' 361 340 0.25      
16 A' 295 278 0.84      
17 A' 223 210 2.56      
18 A" 3205 3017 15.40      
19 A" 3197 3009 0.10      
20 A" 3112 2929 17.21      
21 A" 1549 1458 2.23      
22 A" 1547 1456 0.37      
23 A" 1460 1375 1.80      
24 A" 1382 1301 0.58      
25 A" 1174 1106 1.69      
26 A" 1007 948 0.24      
27 A" 966 909 1.17      
28 A" 565 532 0.03      
29 A" 239 225 0.01      
30 A" 187 176 4.81      

Unscaled Zero Point Vibrational Energy (zpe) 23074.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 21722.2 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 QCISD/6-31G**
ABC
0.26561 0.13067 0.09591

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.406 -2.193 0.000
C2 0.027 -1.088 0.000
C3 -0.442 0.316 0.000
C4 0.027 1.033 1.273
C5 0.027 1.033 -1.273
H6 -1.535 0.277 0.000
H7 -0.360 2.053 1.282
H8 -0.326 0.520 2.167
H9 1.116 1.077 1.307
H10 -0.360 2.053 -1.282
H11 -0.326 0.520 -2.167
H12 1.116 1.077 -1.307

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16822.64793.48893.48893.14104.50063.54843.59204.50063.54843.5920
C21.16821.47962.47382.47382.07383.41412.72142.75313.41412.72142.7531
C32.64791.47961.53451.53451.09372.16032.17982.17092.16032.17982.1709
C43.48892.47381.53452.54602.15181.09051.08951.09052.77783.49592.8006
C53.48892.47381.53452.54602.15182.77783.49592.80061.09051.08951.0905
H63.14102.07381.09372.15182.15182.48512.49343.06152.48512.49343.0615
H74.50063.41412.16031.09052.77782.48511.77031.76972.56363.77433.1356
H83.54842.72142.17981.08953.49592.49341.77031.76853.77434.33423.8021
H93.59202.75312.17091.09052.80063.06151.76971.76853.13563.80212.6137
H104.50063.41412.16032.77781.09052.48512.56363.77433.13561.77031.7697
H113.54842.72142.17983.49591.08952.49343.77434.33423.80211.77031.7685
H123.59202.75312.17092.80061.09053.06153.13563.80212.61371.76971.7685

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 179.518 C2 C3 C4 110.301
C2 C3 C5 110.301 C2 C3 H6 106.423
C3 C4 H7 109.608 C3 C4 H8 111.213
C3 C4 H9 110.442 C3 C5 H10 109.608
C3 C5 H11 111.213 C3 C5 H12 110.442
C4 C3 C5 112.109 C4 C3 H6 108.759
C5 C3 H6 108.759 H7 C4 H8 108.602
H7 C4 H9 108.470 H8 C4 H9 108.439
H10 C5 H11 108.602 H10 C5 H12 108.470
H11 C5 H12 108.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability