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

using model chemistry: QCISD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-210.772610
Energy at 298.15K-210.779882
HF Energy-210.010196
Nuclear repulsion energy157.729270
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/cc-pVDZ
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' 3161 3032 21.06      
2 A' 3155 3027 38.08      
3 A' 3080 2955 5.92      
4 A' 3066 2942 15.76      
5 A' 2320 2226 0.71      
6 A' 1508 1447 7.66      
7 A' 1499 1438 6.52      
8 A' 1429 1371 2.02      
9 A' 1363 1308 8.02      
10 A' 1205 1156 2.15      
11 A' 1132 1086 3.50      
12 A' 950 911 0.20      
13 A' 779 748 1.09      
14 A' 542 520 0.73      
15 A' 354 339 0.17      
16 A' 292 280 0.64      
17 A' 222 213 1.99      
18 A" 3159 3030 13.49      
19 A" 3151 3023 0.03      
20 A" 3064 2940 18.00      
21 A" 1489 1428 2.48      
22 A" 1486 1426 0.35      
23 A" 1410 1353 1.70      
24 A" 1343 1289 0.88      
25 A" 1158 1111 2.08      
26 A" 985 945 0.38      
27 A" 939 901 1.14      
28 A" 559 536 0.11      
29 A" 233 224 0.01      
30 A" 186 179 4.03      

Unscaled Zero Point Vibrational Energy (zpe) 22607.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 21689.9 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/cc-pVDZ
ABC
0.26281 0.12944 0.09507

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.411 -2.201 0.000
C2 0.026 -1.093 0.000
C3 -0.445 0.318 0.000
C4 0.026 1.037 1.278
C5 0.026 1.037 -1.278
H6 -1.551 0.277 0.000
H7 -0.364 2.070 1.288
H8 -0.330 0.518 2.184
H9 1.130 1.081 1.312
H10 -0.364 2.070 -1.288
H11 -0.330 0.518 -2.184
H12 1.130 1.081 -1.312

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17212.65993.50223.50223.15994.52783.56493.60674.52783.56493.6067
C21.17211.48782.48452.48452.08933.43802.73722.76883.43802.73722.7688
C32.65991.48781.54041.54041.10662.17632.19612.18742.17632.19612.1874
C43.50222.48451.54042.55562.16781.10451.10361.10482.79333.51852.8156
C53.50222.48451.54042.55562.16782.79333.51852.81561.10451.10361.1048
H63.15992.08931.10662.16782.16782.50672.51373.09122.50672.51373.0912
H74.52783.43802.17631.10452.79332.50671.79281.79242.57573.80323.1579
H83.56492.73722.19611.10363.51852.51371.79281.79093.80324.36783.8302
H93.60672.76882.18741.10482.81563.09121.79241.79093.15793.83022.6245
H104.52783.43802.17632.79331.10452.50672.57573.80323.15791.79281.7924
H113.56492.73722.19613.51851.10362.51373.80324.36783.83021.79281.7909
H123.60672.76882.18742.81561.10483.09123.15793.83022.62451.79241.7909

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 179.352 C2 C3 C4 110.244
C2 C3 C5 110.244 C2 C3 H6 106.350
C3 C4 H7 109.639 C3 C4 H8 111.244
C3 C4 H9 110.487 C3 C5 H10 109.639
C3 C5 H11 111.244 C3 C5 H12 110.487
C4 C3 C5 112.096 C4 C3 H6 108.860
C5 C3 H6 108.860 H7 C4 H8 108.575
H7 C4 H9 108.445 H8 C4 H9 108.381
H10 C5 H11 108.575 H10 C5 H12 108.445
H11 C5 H12 108.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability