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 C3H4O2 (propenalol)

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-265.608799
Energy at 298.15K-265.614068
Nuclear repulsion energy163.967458
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 BLYP/3-21G*
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' 3180 3160 1.88      
2 A' 3079 3058 23.98      
3 A' 2985 2965 65.46      
4 A' 1948 1935 182.79      
5 A' 1616 1605 332.44      
6 A' 1543 1533 61.15      
7 A' 1445 1436 64.76      
8 A' 1330 1322 34.19      
9 A' 1271 1263 81.53      
10 A' 1094 1086 7.81      
11 A' 1013 1007 3.96      
12 A' 998 991 25.34      
13 A' 844 838 15.36      
14 A' 549 546 12.54      
15 A' 330 328 22.00      
16 A" 1173 1166 138.40      
17 A" 1003 997 0.17      
18 A" 972 966 6.11      
19 A" 788 783 31.96      
20 A" 428 425 14.62      
21 A" 360 357 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 13973.4 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 13882.6 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 BLYP/3-21G*
ABC
0.30923 0.18108 0.11420

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.142 0.000
C2 1.213 0.395 0.000
C3 -1.195 0.423 0.000
O4 1.236 -0.910 0.000
O5 -1.234 -0.918 0.000
H6 -0.136 -1.218 0.000
H7 0.007 2.228 0.000
H8 2.175 0.933 0.000
H9 -2.171 0.920 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9
C11.42461.39452.39592.40072.36421.08612.18482.1820
C21.42462.40811.30552.77622.10282.19441.10233.4241
C31.39452.40812.77281.34151.95342.16833.40821.0948
O42.39591.30552.77282.46951.40623.37062.06893.8673
O52.40072.77621.34152.46951.13773.38143.87842.0629
H62.36422.10281.95341.40621.13773.44933.15742.9516
H71.08612.19442.16833.37063.38143.44932.52512.5402
H82.18481.10233.40822.06893.87843.15742.52514.3455
H92.18203.42411.09483.86732.06292.95162.54024.3455

picture of propenalol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.647 C1 C2 H8 119.128
C1 C3 O5 122.665 C1 C3 H9 121.995
C2 C1 C3 117.344 C2 C1 H7 121.270
C3 C1 H7 121.386 C3 O5 H6 103.679
O4 C2 H8 118.225 O5 C3 H9 115.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 C 0.185      
3 C 0.160      
4 O -0.458      
5 O -0.486      
6 H 0.353      
7 H 0.176      
8 H 0.187      
9 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.225 2.453 0.000 2.464
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.651 0.068 0.000
y 0.068 -28.535 0.000
z 0.000 0.000 -29.950
Traceless
 xyz
x 0.591 0.068 0.000
y 0.068 0.766 0.000
z 0.000 0.000 -1.357
Polar
3z2-r2-2.715
x2-y2-0.117
xy0.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.416 0.146 0.000
y 0.146 5.932 0.000
z 0.000 0.000 1.688


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000