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All results from a given calculation for NH2COOH (Carbamic acid)

using model chemistry: QCISD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.858680
Energy at 298.15K 
HF Energy-243.924673
Nuclear repulsion energy123.932057
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 QCISD(T)=FULL/cc-pVTZ
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' 3839 3674        
2 A' 3807 3643        
3 A' 3674 3515        
4 A' 1860 1780        
5 A' 1640 1569        
6 A' 1458 1395        
7 A' 1246 1192        
8 A' 1085 1038        
9 A' 968 926        
10 A' 590 565        
11 A' 488 467        
12 A" 798 764        
13 A" 595 570        
14 A" 485 464        
15 A" 240i 230i        

Unscaled Zero Point Vibrational Energy (zpe) 11146.0 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 10665.6 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 QCISD(T)=FULL/cc-pVTZ
ABC
0.38834 0.36507 0.18817

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.130 0.000
O2 -0.068 1.336 0.000
N3 1.137 -0.601 0.000
O4 -1.087 -0.683 0.000
H5 2.011 -0.118 0.000
H6 1.106 -1.600 0.000
H7 -1.841 -0.084 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20811.35181.35702.02652.05311.8532
O21.20812.28132.26142.53723.16192.2714
N31.35182.28132.22520.99880.99923.0225
O41.35702.26142.22523.14902.37680.9631
H52.02652.53720.99883.14901.73643.8523
H62.05313.16190.99922.37681.73643.3140
H71.85322.27143.02250.96313.85233.3140

picture of Carbamic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.342 C1 N3 H6 120.962
C1 O4 H7 104.746 O2 C1 N3 125.957
O2 C1 O4 123.572 N3 C1 O4 110.471
H5 N3 H6 120.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-244.858844
Energy at 298.15K-244.863665
HF Energy-243.924572
Nuclear repulsion energy123.876189
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 QCISD(T)=FULL/cc-pVTZ
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 3838 3673        
2 A 3774 3612        
3 A 3649 3492        
4 A 1862 1781        
5 A 1645 1574        
6 A 1456 1394        
7 A 1250 1197        
8 A 1098 1051        
9 A 970 928        
10 A 797 763        
11 A 594 568        
12 A 579 554        
13 A 501 479        
14 A 467 447        
15 A 334 320        

Unscaled Zero Point Vibrational Energy (zpe) 11406.9 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 10915.2 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 QCISD(T)=FULL/cc-pVTZ
ABC
0.38828 0.36407 0.18824

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.040 0.124 -0.002
O2 0.470 1.252 0.007
N3 -1.271 -0.228 -0.054
O4 0.827 -0.980 0.002
H5 -1.931 0.498 0.142
H6 -1.523 -1.172 0.169
H7 1.729 -0.640 0.009

Atom - Atom Distances (Å)
  C1 O2 N3 O4 H5 H6 H7
C11.20721.35861.35592.01132.03721.8534
O21.20722.28632.26012.52013.14202.2720
N31.35862.28632.22981.00101.00143.0285
O41.35592.26012.22983.13262.36410.9632
H52.01132.52011.00103.13261.71933.8348
H62.03723.14201.00142.36411.71933.2987
H71.85342.27203.02850.96323.83483.2987

picture of Carbamic acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 116.123 C1 N3 H6 118.582
C1 O4 H7 104.835 O2 C1 N3 125.911
O2 C1 O4 123.610 N3 C1 O4 110.458
H5 N3 H6 118.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability