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/TZVP

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/TZVP
 hartrees
Energy at 0K-210.943023
Energy at 298.15K-210.950340
HF Energy-210.064277
Nuclear repulsion energy159.268821
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/TZVP
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' 3159 2993 23.87      
2 A' 3153 2988 44.04      
3 A' 3090 2928 4.34      
4 A' 3072 2911 14.93      
5 A' 2359 2235 1.31      
6 A' 1536 1455 10.48      
7 A' 1531 1451 4.91      
8 A' 1464 1387 2.92      
9 A' 1382 1310 6.77      
10 A' 1225 1161 1.55      
11 A' 1149 1089 3.56      
12 A' 954 904 0.09      
13 A' 784 743 1.05      
14 A' 552 523 0.63      
15 A' 359 340 0.26      
16 A' 295 279 0.77      
17 A' 223 212 2.31      
18 A" 3157 2991 16.04      
19 A" 3148 2983 0.16      
20 A" 3070 2908 16.60      
21 A" 1518 1439 2.85      
22 A" 1514 1434 0.37      
23 A" 1442 1366 2.57      
24 A" 1364 1293 0.31      
25 A" 1163 1102 2.61      
26 A" 997 945 0.16      
27 A" 963 912 0.84      
28 A" 572 542 0.15      
29 A" 226 214 0.02      
30 A" 188 178 4.47      

Unscaled Zero Point Vibrational Energy (zpe) 22804.9 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 21607.7 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/TZVP
ABC
0.26620 0.13234 0.09697

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.413 -2.173 0.000
C2 0.025 -1.084 0.000
C3 -0.446 0.311 0.000
C4 0.025 1.027 1.270
C5 0.025 1.027 -1.270
H6 -1.538 0.270 0.000
H7 -0.355 2.049 1.277
H8 -0.329 0.517 2.166
H9 1.115 1.063 1.305
H10 -0.355 2.049 -1.277
H11 -0.329 0.517 -2.166
H12 1.115 1.063 -1.305

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15572.62793.46433.46433.12654.47723.53253.55884.47723.53253.5588
C21.15571.47232.46362.46362.06833.40472.71682.73863.40472.71682.7386
C32.62791.47231.53241.53241.09282.15872.17882.16912.15872.17882.1691
C43.46432.46361.53242.54052.15161.09091.08991.09112.77093.49182.7964
C53.46432.46361.53242.54052.15162.77093.49182.79641.09091.08991.0911
H63.12652.06831.09282.15162.15162.48842.49233.06102.48842.49233.0610
H74.47723.40472.15871.09092.77092.48841.77131.77102.55383.76833.1306
H83.53252.71682.17881.08993.49182.49231.77131.76833.76834.33173.7988
H93.55882.73862.16911.09112.79643.06101.77101.76833.13063.79882.6095
H104.47723.40472.15872.77091.09092.48842.55383.76833.13061.77131.7710
H113.53252.71682.17883.49181.08992.49233.76834.33173.79881.77131.7683
H123.55882.73862.16912.79641.09113.06103.13063.79882.60951.77101.7683

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 179.055 C2 C3 C4 110.141
C2 C3 C5 110.141 C2 C3 H6 106.541
C3 C4 H7 109.606 C3 C4 H8 111.258
C3 C4 H9 110.413 C3 C5 H10 109.606
C3 C5 H11 111.258 C3 C5 H12 110.413
C4 C3 C5 111.979 C4 C3 H6 108.937
C5 C3 H6 108.937 H7 C4 H8 108.630
H7 C4 H9 108.518 H8 C4 H9 108.349
H10 C5 H11 108.630 H10 C5 H12 108.518
H11 C5 H12 108.349
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability