return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD=FULL/aug-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 CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-210.818515
Energy at 298.15K-210.825767
HF Energy-210.019258
Nuclear repulsion energy157.875779
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 CCSD=FULL/aug-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' 3142 3142 22.54      
2 A' 3135 3135 41.38      
3 A' 3069 3069 4.63      
4 A' 3052 3052 15.62      
5 A' 2314 2314 1.68      
6 A' 1507 1507 8.77      
7 A' 1497 1497 5.28      
8 A' 1424 1424 2.60      
9 A' 1354 1354 7.69      
10 A' 1200 1200 1.94      
11 A' 1126 1126 3.43      
12 A' 945 945 0.20      
13 A' 775 775 1.03      
14 A' 543 543 0.70      
15 A' 355 355 0.27      
16 A' 287 287 0.93      
17 A' 218 218 2.57      
18 A" 3140 3140 15.46      
19 A" 3130 3130 0.12      
20 A" 3050 3050 16.33      
21 A" 1486 1486 1.97      
22 A" 1485 1485 0.87      
23 A" 1404 1404 2.58      
24 A" 1331 1331 0.44      
25 A" 1150 1150 1.97      
26 A" 981 981 0.30      
27 A" 934 934 1.03      
28 A" 561 561 0.01      
29 A" 223 223 0.01      
30 A" 185 185 5.00      

Unscaled Zero Point Vibrational Energy (zpe) 22500.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22500.9 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.26281 0.12979 0.09532

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.417 -2.196 0.000
C2 0.026 -1.093 0.000
C3 -0.450 0.316 0.000
C4 0.026 1.036 1.278
C5 0.026 1.036 -1.278
H6 -1.553 0.274 0.000
H7 -0.365 2.066 1.286
H8 -0.329 0.519 2.183
H9 1.127 1.078 1.308
H10 -0.365 2.066 -1.286
H11 -0.329 0.519 -2.183
H12 1.127 1.078 -1.308

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17082.65743.49703.49703.15934.52003.56253.59624.52003.56253.5962
C21.17081.48672.48232.48232.08773.43282.73632.76323.43282.73632.7632
C32.65741.48671.54141.54141.10372.17342.19562.18552.17342.19562.1855
C43.49702.48231.54142.55512.16861.10201.10091.10212.79013.51662.8107
C53.49702.48231.54142.55512.16862.79013.51662.81071.10201.10091.1021
H63.15932.08771.10372.16862.16862.50522.51453.08792.50522.51453.0879
H74.52003.43282.17341.10202.79012.50521.78891.78912.57143.79823.1510
H83.56252.73632.19561.10093.51662.51451.78891.78743.79824.36573.8233
H93.59622.76322.18551.10212.81073.08791.78911.78743.15103.82332.6165
H104.52003.43282.17342.79011.10202.50522.57143.79823.15101.78891.7891
H113.56252.73632.19563.51661.10092.51453.79824.36573.82331.78891.7874
H123.59622.76322.18552.81071.10213.08793.15103.82332.61651.78911.7874

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 179.097 C2 C3 C4 110.109
C2 C3 C5 110.109 C2 C3 H6 106.463
C3 C4 H7 109.481 C3 C4 H8 111.295
C3 C4 H9 110.426 C3 C5 H10 109.481
C3 C5 H11 111.295 C3 C5 H12 110.426
C4 C3 C5 111.955 C4 C3 H6 109.020
C5 C3 H6 109.020 H7 C4 H8 108.595
H7 C4 H9 108.525 H8 C4 H9 108.453
H10 C5 H11 108.595 H10 C5 H12 108.525
H11 C5 H12 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability