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Calculated Frequencies for O2 (Oxygen diatomic) 3Σg D∞h

19 07 18 15 43
InChI=1S/O2/c1-2 INChIKey=MYMOFIZGZYHOMD-UHFFFAOYSA-N


Click on an entry for details.
An R subscript indicates raman activity data is available.
For a comparison of experimental versus calculated see section IV.C.1 Compare vibrational frequencies
Vibrational frequency in cm-1 (unscaled)
Methods with predefined basis sets
semi-empirical AM1 2093R
PM3 2100R
PM6 1602
composite G2 1998
G3 1998
G3B3 1660
G3MP2 1998
G4 1664
CBS-Q 2011
molecular mechanics DREIDING 1437

Vibrational frequency in cm-1 (unscaled)
Methods with standard basis sets
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) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ cc-pCVQZ aug-cc-pCVTZ Sadlej_pVTZ daug-cc-pVDZ daug-cc-pVTZ
hartree fock HF 2088R 1619R 1619R 1769R 1998R 1998R 1976R 2000R 2000R 1998R 1978R 1978 1959R 1998R 1970R 1970R 1978R 1960R 1968R 1970 1997 1969 1971 1958 1984 1977R 1959R
ROHF 2088 1616 1619 1795 2021 2021 2013 2030 2000 1998 2019 1978   2021 2004 1970 1978 1960 1968 2004 2021 2003 2009 1958   2018 2000
density functional LSDA 1652 1369 1369 1419 1648 1647 1632 1624 1624 1653 1634 1634 1612 1635 1619 1626 1636 1618 1627 1619 1633 1621 1626 1618   1634 1617
BLYP 1554R 1298R 1298R 1301R 1517R 1517R 1496R 1491R 1491R 1523R 1501R 1501 1472R 1502R 1483R 1492 1501R 1481R 1493 1484 1498 1488 1494 1484   1500R 1481R
B1B95 1747R 1423R 1423R 1496R 1729R 1729R 1715R 1716R 1716R 1732R 1717R 1718 1694R 1719R 1702R 1708 1717R 1699R 1709 1702 1717 1705 1710 1700   1716R 1698R
B3LYP 1684R 1386R 1386R 1436R 1659R 1659R 1641R 1641R 1641R 1664R 1645R 1645 1619R 1649R 1629R 1636R 1646R 1626R 1637R 1629 1646 1632 1638 1627 1648 1645R 1625R
B3LYPultrafine 1684 1386R 1386 1436 1659R 1659R 1641R 1641R 1641 1664R 1645R 1645 1619R 1649R 1629R 1636 1646R 1626R 1637   1646 1632 dnf 1627   1645R 1625R
B3PW91 1714R 1403 1403 1466 1698 1698 1684 1682 1682R 1700R 1686R 1687 1662R 1686 1671 1678 1686R 1668R 1679 1671 1684 1674 1679 1669   1685R 1667R
mPW1PW91 1747R 1423R 1423R 1498R 1730R 1730R 1715R 1717R 1717R 1733R 1718R 1719 1695R 1720R 1704R 1710 1718R 1700R 1710 1704 1718 1707 1711 1701   1717R 1699R
M06-2X 1825R 1478R 1478R 1561R 1788R 1788R 1773R 1774R 1774R 1787R 1771R 1779 1753R 1777R 1758R 1768 1771R 1754R 1769   1781 1763 1765 1758   1770R 1754R
PBEPBE 1604R 1326R 1326R 1346R 1578R 1578R 1561R 1556R 1556R 1582R 1565R 1565 1536R 1562R 1547R 1555 1564R 1544R 1556 1546 1559 1552 1557 1548 1565 1562R 1544R
PBEPBEultrafine 1604 1326R 1326 1346 1578R 1578R 1561R 1556R 1556 1582R 1565R 1565 1536R 1562R 1547R 1555 1564R 1544R 1556   1559 1551 dnf 1548   1562R 1544R
PBE1PBE 1756R 1426R 1426R 1500R 1735R 1735R 1720R 1722R 1722R 1738R 1723R 1724 1699R 1724R 1708R 1714 1722R 1704R 1715   1723 1711 1715 1706   1721R 1703R
HSEh1PBE 1751R 1420R 1420R 1494R 1730R 1730R 1715R 1716R 1716R 1734R 1718R 1719 1694R 1720R 1703R 1709 1718R 1699R 1710   1718 1706 1711 1701   1717R 1699R
TPSSh 1670R 1370R 1370R 1402R 1635R 1635R 1621R 1620R 1620R 1641R 1626R   1601R 1623R 1611R 1617R 1623R 1608R 1617R   1620 1614 1619 1611   1622R 1607R
wB97X-D 1749R 1444R 1444R 1524R 1734R 1734R 1721R 1719R 1719R 1737R 1722R   1704R 1728R 1707R 1715R 1726R 1704R 1715R   1725 1708 1716     1725R 1703R
B97D3 1588R 1319R 1319R 1340R 1575R 1575R 1559R 1556R 1556R 1581R 1564R   1537R 1559R 1548R 1557R 1561R 1546R 1559R   1557 1552 1560     1561R 1545R
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) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ cc-pCVQZ aug-cc-pCVTZ Sadlej_pVTZ daug-cc-pVDZ daug-cc-pVTZ
Moller Plesset perturbation MP2 1393R 965R 965R 919R 1409R 1409R 1410R 1451R 1451R 1477R 1491R 1491 1421R 1423R 1454R 1478R 1428R 1455R 1480R 1455 1422 1455 1480 1454 1428 1428R 1454R
MP2=FULL 1394R 965R 965R 919R 1412R 1412R 1413R 1456R 1456R 1483R 1501R 1501 1424R 1424R 1469R 1486R 1430R 1477R 1490R 1469 1425 1463 1488 1461 1431 1429R 1476R
ROMP2 1391 860 860 621 1257 1257 1206 1290 1290 1329 1296 1296 1225 1275 1274 1287 1217 1251 1279   1273 1276 1289 1250   1215 1249
MP3 1609 1422 1422 1483 1725 1725 1714 1761 1761 1760 1762 1762 1722 1737 1741 1756 1722 1734 1754   1739 1741 1758 1732   1720 1733
MP3=FULL         1727   1717           1725 1738 1753           1741 1746 1763 1738   1721 1749
MP4 1686 1123 1123 1050 1465 1465 1441 1470 1470 1510 1481 1481 1420 1469 1450 1465 1449 1442 1464   1464 1448 1465 1437   1448 1441
MP4=FULL 1686 1123 1123 1049 1467 1467 1444 1475 1475 1514 1489 1489   1470 1464 1470 1451 1464 1472   1466 1452 1468 1441   1450 1463
B2PLYP 1578R 1219R 1219R 1234R 1550R 1550R 1532R 1546R 1546R 1572R 1555R 1556 1516R 1546R 1535R 1545 1540R 1530R 1546   1544 1538 1546 1531   1538R 1530R
B2PLYP=FULL 1579R 1219R 1219R 1234R 1551R 1551R 1532R 1547R 1547R 1573R 1558R   1517R 1546R 1538R   1540R 1536R     1544 1539 1548 1533   1539R 1535R
B2PLYP=FULLultrafine 1579R 1219R 1219R 1234R 1551R 1551R 1532R 1547R 1547R 1573R 1558R   1517R 1546R 1538R   1540R 1536R     1544 1539 dnf     1539R 1535R
Configuration interaction CID 1717 1405 1405 1459 1750 1750 1738 1785 1784 1795 1796 1796 1746 1763 1775 1794 1752 1770 1793   1764 1776 1795 1770   1751 1770
CISD 1717 1387 1387 1425 1727   1714 1756 1756 1772 1770 1770 1717 1736 1749 1768 1726 1745 1767   1737 1751 1770 1743   1725 1744
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) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ cc-pCVQZ aug-cc-pCVTZ Sadlej_pVTZ daug-cc-pVDZ daug-cc-pVTZ
Quadratic configuration interaction QCISD 1669 1321 1321 1325 1637 1637 1615 1662 1662 1680 1669 1669 1618 1645 1650 1666 1625 1641 1663 1650 1645 1650 1667 1638   1624 1640
QCISD(T) 1662 1274 1274 1260 1571 1571 1551 1594 1594 1612 1597 1597 1548 1578 1575 1589 1557 1566 1587   1577 1575 1591 1562   1555 1564
QCISD(T)=FULL         1574   1553             1579 1586 1594 1558 1583 1594   1580 1580 1595     1556 1583
QCISD(TQ) dnf 1268 1268 1253 1565 1565 1545 1597 1597 1609 1600 1600   1575 1579 1595 1552 1569 1592                
QCISD(TQ)=FULL         1568                     dnf 1553 1587                  
Coupled Cluster CCD 1670 1352 1352 1385 1682 1682 1670 1715 1715 1726 1727 1727 1677 1695 1704 1723 1682 1699 1722   1695 1705 1725 1697   1681 1698
CCSD 1669 1334 1334 1345 1650 1650 1631 1678 1679 1693 1686 1686 1635 1660 1666 1682 1641 1658 1680   1660 1667 1684 1655   1640 1657
CCSD=FULL 1669 1335 1335 1345 1653 1653 1634 1683 1683 1697 1694 1694 1638 1661 1678 1689 1643 1676 1688   1663 1673 1691 1662   1641 1675
CCSD(T) 1661   1281 1271 1579 1579   1603 1603 1619 1606 1606 1558 1586 1583 1598 1565 1574 1597 1584 1586 1584 1600 1571   1563 1574
CCSD(T)=FULL 1661 1281 1281 1270 1581 1581 1561 1607 1607 1623 1614 1614 1559 1587 1596 1604 1566 1593 1603 1596 1588 1590 1605 1576   1564 1591
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) 6-311+G(3df,2pd) TZVP cc-pVDZ cc-pVTZ cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ cc-pCVQZ aug-cc-pCVTZ Sadlej_pVTZ daug-cc-pVDZ daug-cc-pVTZ

Vibrational frequency in cm-1 (unscaled)
Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD cc-pVTZ-PP aug-cc-pVTZ-PP Def2TZVPP
hartree fock HF 1817 1999R 1813R 1964R 1767R 1767R     1968R
ROHF 1817 1999 1813 1964 1767 1767      
density functional LSDA 1452 1613 1450 1600 1427 1427      
BLYP 1367 1504 1365 1493 1321 1321     1493R
B1B95 1543 1672 1557 1715 1506 1506     1708R
B3LYP 1490R 1647R 1487R 1629R 1446R 1446R     1637R
B3LYPultrafine 1490 1647 1487 1629 1446 1446     1637R
B3PW91 1527 1695 1524 1676 1478 1478     1678R
mPW1PW91 1559 1731 1556 1710 1508 1508     1710R
M06-2X 1637 1804 1633 1781 1566 1566     1765R
PBEPBE 1418 1575 1415 1562 1365 1365     1556R
PBEPBEultrafine 1417 1575 1414 1561 1364 1364     1556R
PBE1PBE 1562 1737 1559 1716 1509 1509     1714R
HSEh1PBE 1554 1730 1552 1709 1503 1503     1709R
TPSSh                 1618R
wB97X-D 1578R 1723R 1574R 1702R 1535R 1535R     1716R
B97D3                 1557R
Moller Plesset perturbation MP2 1040R 1408R 1048R 1396R 963R 963R     1464R
MP2=FULL 1040 1408 1048 1396 962 963     1470R
ROMP2 702 1208 709 1197 587 586      
MP3 1520 1708 1540 1697 1490 1493      
MP4 1221 1479 1184 1447 1099 1096      
MP4=FULL 1221 1479 1184 1447 1099 1096      
B2PLYP 1315 1541 1312 1523 1251 1251     1542R
B2PLYP=FULL                 1543R
B2PLYP=FULLultrafine                 1543R
Configuration interaction CID 1511 1745 1522 1727 1465 1466      
CISD 1484 1721 1493 1704 1434 1435      
Quadratic configuration interaction QCISD 1396 1627 1398 1609 1338 1338      
QCISD(T) 1353 1569 1351 1550 1287 1287      
QCISD(TQ) 1332 1555 1335 1540 1271 1271      
Coupled Cluster CCD 1447 1676 1455 1659 1396 1396      
CCSD 1414 1641 1417 1623 1358 1359      
CCSD=FULL 1414 1641 1417 1623 1358 1359      
CCSD(T) 1360 1575 1358 1557 1295 1295      
CCSD(T)=FULL 1360 1575 1358 1557 1295 1295      
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.
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