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All results from a given calculation for CH2(OH)2 (methanediol)

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-188.134838
Energy at 298.15K-188.139843
HF Energy-188.134838
Nuclear repulsion energy77.840514
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 PBEPBE/STO-3G
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 3559 3251 17.39      
2 A 3128 2858 30.74      
3 A 1588 1451 0.46      
4 A 1525 1393 1.15      
5 A 1216 1111 0.93      
6 A 1013 926 22.50      
7 A 516 472 64.98      
8 A 379 346 13.82      
9 B 3562 3254 61.37      
10 B 3234 2955 12.32      
11 B 1549 1415 37.61      
12 B 1418 1296 16.55      
13 B 1070 978 72.75      
14 B 994 908 9.55      
15 B 412 377 98.12      

Unscaled Zero Point Vibrational Energy (zpe) 12581.7 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 11494.6 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 PBEPBE/STO-3G
ABC
1.29181 0.30927 0.27573

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.547
O2 0.000 1.233 -0.258
O3 0.000 -1.233 -0.258
H4 -0.910 -0.101 1.203
H5 0.910 0.101 1.203
H6 -0.894 1.126 -0.777
H7 0.894 -1.126 -0.777

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.47281.47281.12621.12621.95441.9544
O21.47282.46652.17752.06051.03922.5755
O31.47282.46652.06052.17752.57551.0392
H41.12622.17752.06051.83102.32902.8680
H51.12622.06052.17751.83102.86802.3290
H61.95441.03922.57552.32902.86802.8750
H71.95442.57551.03922.86802.32902.8750

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 100.740 C1 O3 H7 100.740
O2 C1 O3 113.726 O2 C1 H4 113.150
O2 C1 H5 104.100 O3 C1 H4 104.100
O3 C1 H5 113.150 H4 C1 H5 108.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 O -0.230      
3 O -0.230      
4 H 0.070      
5 H 0.070      
6 H 0.165      
7 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.222 0.222
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.490 -2.288 0.000
y -2.288 -19.777 0.000
z 0.000 0.000 -15.337
Traceless
 xyz
x 3.067 -2.288 0.000
y -2.288 -4.863 0.000
z 0.000 0.000 1.796
Polar
3z2-r23.592
x2-y25.286
xy-2.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.751 -0.210 0.000
y -0.210 1.808 0.000
z 0.000 0.000 1.627


<r2> (average value of r2) Å2
<r2> 47.433
(<r2>)1/2 6.887