| |
Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Home > Geometry > Comparisons > Bonds, angles OR Comparisons > Geometry > Bonds, angles | |
Experimental bond length is 2.594 Å
| Display Options |
|---|
| semi-empirical | PM3 | 2.785 |
|---|---|---|
| PM6 | 2.587 | |
| composite | G2 | 2.715 |
| G3 | 2.682 | |
| G3B3 | 2.603 | |
| G4 | 2.599 | |
| CBS-Q | 2.709 |
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 2.714 | 2.852 | 2.712 | 2.825 | 2.715 | 2.715 | 2.734 | 2.681 | 2.681 | 2.693 | 2.675 | 2.801 | 2.684 | 2.674 | 2.671 |
| ROHF | 2.852 | 2.712 | 2.825 | 2.715 | 2.715 | 2.734 | 2.681 | 2.681 | 2.675 | 2.801 | 2.684 | 2.674 | 2.671 | |||
| density functional | BLYP | 2.730 | 2.872 | 2.712 | 2.834 | 2.716 | 2.716 | 2.739 | 2.614 | 2.614 | 2.675 | 2.608 | 2.825 | 2.607 | 2.605 | |
| B1B95 | 2.708 | 2.686 | 2.686 | 2.803 | 2.683 | 2.683 | dnf | 2.596 | 2.596 | 2.648 | 2.589 | 2.785 | 2.595 | 2.588 | ||
| B3LYP | 2.716 | 2.851 | 2.697 | 2.816 | 2.699 | 2.699 | 2.721 | 2.613 | 2.613 | 2.662 | 2.606 | 2.802 | 2.606 | 2.603 | 2.602 | |
| B3LYPultrafine | 2.851 | 2.699 | 2.699 | 2.720 | 2.613 | 2.663 | 2.606 | 2.802 | 2.607 | 2.604 | ||||||
| B3PW91 | 2.711 | 2.844 | 2.690 | 2.809 | 2.689 | 2.689 | 2.707 | 2.600 | 2.600 | 2.653 | 2.591 | 2.788 | 2.597 | 2.589 | ||
| mPW1PW91 | 2.707 | 2.837 | 2.686 | 2.804 | 2.685 | 2.685 | 2.703 | 2.599 | 2.599 | 2.650 | 2.590 | 2.781 | 2.597 | 2.588 | ||
| M06-2X | 2.689 | 2.823 | 2.684 | 2.794 | 2.686 | 2.686 | 2.702 | 2.625 | 2.625 | 2.660 | 2.621 | 2.780 | 2.623 | 2.620 | ||
| PBEPBE | 2.718 | 2.855 | 2.696 | 2.818 | 2.696 | 2.696 | 2.716 | 2.591 | 2.591 | 2.656 | 2.583 | 2.801 | 2.589 | 2.580 | ||
| PBEPBEultrafine | 2.855 | 2.696 | 2.696 | 2.716 | 2.591 | 2.656 | 2.583 | 2.801 | 2.589 | 2.581 | ||||||
| PBE1PBE | 2.705 | 2.684 | 2.684 | 2.803 | 2.684 | 2.684 | 2.702 | 2.597 | 2.597 | 2.649 | 2.589 | 2.780 | 2.596 | 2.587 | ||
| HSEh1PBE | 2.706 | 2.839 | 2.686 | 2.805 | 2.685 | 2.685 | 2.704 | 2.599 | 2.599 | 2.650 | 2.591 | 2.784 | 2.597 | 2.589 | ||
| TPSSh | 2.711 | 2.843 | 2.693 | 2.811 | 2.693 | 2.693 | 2.709 | 2.599 | 2.599 | 2.656 | 2.591 | 2.788 | 2.599 | 2.589 | 2.587 | |
| wB97X-D | 2.710 | 2.833 | 2.688 | 2.801 | 2.687 | 2.687 | 2.706 | 2.612 | 2.612 | 2.655 | 2.604 | 2.781 | 2.610 | 2.602 | 2.600 | |
| B97D3 | 2.736 | 2.879 | 2.717 | 2.844 | 2.728 | 2.728 | dnf | dnf | 2.618 | 2.687 | 2.596 | 2.833 | 2.602 | 2.592 | 2.591 | |
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | ||
| Moller Plesset perturbation | MP2 | 2.717 | 2.865 | 2.717 | 2.838 | 2.711 | 2.711 | 2.730 | 2.640 | 2.640 | 2.676 | 2.632 | 2.802 | 2.679 | 2.665 | 2.662 |
| MP2=FULL | 2.719 | 2.866 | 2.712 | 2.838 | 2.708 | 2.708 | 2.726 | 2.635 | 2.635 | 2.669 | 2.624 | 2.798 | 2.646 | 2.625 | 2.603 | |
| MP3 | 2.712 | 2.730 | 2.644 | 2.802 | 2.679 | 2.667 | ||||||||||
| MP3=FULL | 2.866 | 2.712 | 2.839 | 2.709 | 2.709 | 2.727 | 2.644 | 2.644 | 2.674 | 2.638 | 2.798 | 2.650 | 2.637 | |||
| B2PLYP | 2.713 | 2.852 | 2.701 | 2.819 | 2.700 | 2.700 | 2.720 | 2.624 | 2.624 | 2.666 | 2.617 | 2.797 | 2.633 | 2.627 | ||
| B2PLYP=FULL | 2.714 | 2.852 | 2.699 | 2.819 | 2.699 | 2.699 | 2.719 | 2.623 | 2.623 | 2.663 | 2.614 | 2.796 | 2.622 | 2.614 | ||
| B2PLYP=FULLultrafine | 2.714 | 2.852 | 2.699 | 2.819 | 2.699 | 2.699 | 2.719 | 2.623 | 2.623 | 2.663 | 2.615 | 2.796 | 2.622 | 2.614 | ||
| Configuration interaction | CID | 2.865 | 2.716 | 2.839 | 2.712 | 2.652 | 2.645 | 2.680 | 2.667 | |||||||
| CISD | 2.868 | 2.716 | 2.840 | 2.712 | 2.652 | 2.644 | 2.680 | 2.667 | ||||||||
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ | ||
| Quadratic configuration interaction | QCISD | 2.870 | 2.718 | 2.842 | 2.712 | 2.712 | 2.731 | 2.649 | 2.649 | 2.681 | 2.644 | 2.803 | 2.680 | 2.667 | ||
| QCISD(T)=FULL | dnf | |||||||||||||||
| Coupled Cluster | CCD | 2.866 | 2.717 | 2.840 | 2.712 | 2.712 | 2.731 | 2.649 | 2.649 | 2.680 | 2.645 | 2.802 | 2.680 | 2.668 | ||
| CCSD | 2.712 | 2.712 | 2.731 | 2.649 | 2.649 | 2.680 | 2.644 | 2.803 | 2.680 | 2.667 | 2.662 | |||||
| CCSD=FULL | 2.709 | 2.674 | 2.638 | 2.799 | 2.651 | 2.637 | 2.616 | |||||||||
| CCSD(T)=FULL | dnf | dnf | ||||||||||||||
| STO-3G | 3-21G | 3-21G* | 6-31G | 6-31G* | 6-31G** | 6-31+G** | 6-311G* | 6-311G** | 6-31G(2df,p) | 6-311+G(3df,2p) | TZVP | cc-pVDZ | cc-pVTZ | cc-pVQZ |
| CEP-31G | CEP-31G* | CEP-121G | CEP-121G* | LANL2DZ | SDD | cc-pVTZ-PP | aug-cc-pVTZ-PP | Def2TZVPP | ||
|---|---|---|---|---|---|---|---|---|---|---|
| hartree fock | HF | 2.821 | 2.821 | 2.866 | 2.730 | 2.676 | ||||
| ROHF | 2.676 | |||||||||
| density functional | BLYP | 2.614 | ||||||||
| B1B95 | 2.595 | |||||||||
| B3LYP | 2.828 | 2.828 | 2.860 | 2.654 | 2.612 | |||||
| B3LYPultrafine | 2.612 | |||||||||
| B3PW91 | 2.598 | |||||||||
| mPW1PW91 | 2.597 | |||||||||
| M06-2X | 2.625 | |||||||||
| PBEPBE | 2.590 | |||||||||
| PBEPBEultrafine | 2.590 | |||||||||
| PBE1PBE | 2.595 | |||||||||
| HSEh1PBE | 2.597 | |||||||||
| TPSSh | 2.598 | |||||||||
| wB97X-D | 2.824 | 2.824 | 2.844 | 2.660 | 2.611 | |||||
| B97D3 | dnf | |||||||||
| Moller Plesset perturbation | MP2 | 2.844 | 2.844 | 2.872 | 2.719 | 2.670 | ||||
| MP2=FULL | 2.633 | |||||||||
| MP3 | 2.672 | |||||||||
| MP3=FULL | 2.644 | |||||||||
| B2PLYP | 2.633 | |||||||||
| B2PLYP=FULL | 2.622 | |||||||||
| B2PLYP=FULLultrafine | 2.622 | |||||||||
| Configuration interaction | CID | 2.670 | ||||||||
| CISD | 2.670 | |||||||||
| Quadratic configuration interaction | QCISD | 2.672 | ||||||||
| Coupled Cluster | CCD | 2.672 | ||||||||
| CCSD | 2.672 | |||||||||
| CCSD=FULL | 2.644 |