Laser Spectroscopy and Electronic Structure Theory of       Diatomic Molecules:  Beyond Hund's Cases to Supermultiplets,Superconfigurations, and Channels (Physics)
{'Code': '03010100', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'PHY', 'LongName': 'Division Of Physics'}}
{'SignBlockName': 'Arthur Komar'}
This research combines experiment and theory in a continuing            effort to formulate and test new approaches to the electronic                   structure of diatomic molecules.  A key element is the                          recognition of natural groupings of electronic states into                      "super-states" (supermultiplets, superconfigurations, and                       channels) which reflect an approximate factorization of a                       complex, many-body system into weakly interacting sub-systems.  A               well chosen zero-order model can be useful in assigning, fitting,               and interpreting a spectrum, but its greatest value lies in its                 revelation of interrelationships between observables, states and                molecules.  The beauty of molecular electronic structure lies in                the simplicity and periodicity concealed beneath the complexity                 of a spectrum or in the enormous differences between the                        electronic level diagrams of two intuitively similar molecules.
{'FirstName': 'Robert', 'LastName': 'Field', 'EmailAddress': 'rwfield@mit.edu', 'StartDate': '08/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Massachusetts Institute of Technology', 'CityName': 'Cambridge', 'ZipCode': '021394301', 'PhoneNumber': '6172531000', 'StreetAddress': '77 MASSACHUSETTS AVE', 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA'}
{'Code': '1241', 'Text': 'AMO Experiment/Atomic, Molecul'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8709759.xml'}