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 C3H5ClO (Oxirane, (chloromethyl)-)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-651.842764
Energy at 298.15K-651.848987
HF Energy-650.916115
Nuclear repulsion energy216.432646
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 MP2/Def2TZVPP
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 3263 3104 10.86      
2 A 3202 3047 5.90      
3 A 3186 3032 4.08      
4 A 3157 3004 13.54      
5 A 3129 2977 8.90      
6 A 1545 1470 2.49      
7 A 1501 1428 7.30      
8 A 1455 1385 3.47      
9 A 1313 1249 20.71      
10 A 1284 1221 2.94      
11 A 1228 1168 3.86      
12 A 1181 1123 0.93      
13 A 1163 1107 1.63      
14 A 1123 1068 3.24      
15 A 1082 1029 0.34      
16 A 994 946 26.57      
17 A 895 852 2.52      
18 A 880 838 23.59      
19 A 825 785 12.19      
20 A 792 754 46.55      
21 A 417 396 0.61      
22 A 374 356 3.39      
23 A 214 203 10.99      
24 A 95 91 6.55      

Unscaled Zero Point Vibrational Energy (zpe) 17148.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 16316.4 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 MP2/Def2TZVPP
ABC
0.44037 0.06838 0.06359

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.399 0.684 0.305
Cl2 -1.889 -0.216 -0.047
C3 0.740 0.057 -0.438
C4 1.698 -0.810 0.233
O5 2.038 0.548 -0.080
H6 -0.231 0.662 1.378
H7 -0.546 1.716 -0.004
H8 0.573 -0.077 -1.499
H9 1.559 -1.033 1.284
H10 2.227 -1.571 -0.327

Atom - Atom Distances (Å)
  C1 Cl2 C3 C4 O5 H6 H7 H8 H9 H10
C11.77671.49732.57532.47031.08611.08752.18622.78203.5179
Cl21.77672.67263.64714.00092.35612.35342.86223.78564.3423
C31.49732.67261.45561.43272.14642.14341.08312.19642.2072
C42.57533.64711.45561.43412.68313.38702.19191.08351.0829
O52.47034.00091.43271.43412.69942.83662.13352.14252.1416
H61.08612.35612.14642.68312.69941.76683.07782.46733.7329
H71.08752.35342.14343.38702.83661.76682.58873.69474.3122
H82.18622.86221.08312.19192.13353.07782.58873.10402.5180
H92.78203.78562.19641.08352.14252.46733.69473.10401.8250
H103.51794.34232.20721.08292.14163.73294.31222.51801.8250

picture of Oxirane, (chloromethyl)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 121.407 C1 C3 O5 114.918
C1 C3 H8 114.880 Cl2 C1 C3 109.134
Cl2 C1 H6 108.345 Cl2 C1 H7 108.078
C3 C1 H6 111.379 C3 C1 H7 111.052
C3 C4 O5 59.439 C3 C4 H9 119.041
C3 C4 H10 120.083 C3 O5 C4 61.029
C4 C3 O5 59.532 C4 C3 H8 118.665
O5 C3 H8 115.295 O5 C4 H9 115.946
O5 C4 H10 115.916 H6 C1 H7 108.757
H9 C4 H10 114.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability