Investigation of Aerosol Formation and Heterogeneous        Chemistry on a Molecular Level: The Reactivity, Stability,  and Photochemistry of Small Clusters of Atmospheric Interest
{'Code': '06020104', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'AGS', 'LongName': 'Div Atmospheric & Geospace Sciences'}}
{'SignBlockName': 'Jarvis L. Moyers', 'PO_EMAI': None, 'PO_PHON': None}
The formation and chemical role of aerosols is an important                aspect of atmospheric chemistry that is still relatively poorly                 understood.  Considerable knowledge and insight into the                        formation of aerosols, their subsequent growth, and the chemical                transformations that occur within or that are catalyzed by                      aerosols can be gained through an investigation of gas-phase                    molecular clusters.  Information on clusters is crucial for                     determining the stability of prenucleation embryos and                          formulating theories of gas-to-particle conversion.  Clusters                   also provide a medium through which a detailed understanding of                 heterogeneous reactions, including the role of metal ions and                   photochemical processes on chemical conversions can be obtained                 on a molecular level.                                                                This research project involves an experimental study in                    three main areas which will serve to elucidate important aspects                of the above mentioned processes.  These include investigations                 of:  (1) the kinetics of association (clustering) reactions and                 the subsequent reactions of clusters with atmospheric molecules;                (2) the thermochemical properties of clusters; and (3)                          photochemical reactions within clusters, their photodissociation                spectroscopy and the dissociation dynamics of clusters.  The                    first investigation is to be performed with a temperature                       variable selected ion flow tube which includes an electric drift                field.  The second is conducted with a high pressure ion source                 mass spectrometer and the third employs a molecular beam-                       intracavity laser apparatus with ion energy and mass analysis                   capabilities.  Additionally, computational efforts involving ab                 initio quantum mechanics, classical trajectories, RRKM models,                  and phase-space theory are planned in order to augment the                      experimental phases of the program.
{'FirstName': 'A.', 'LastName': 'Castleman', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': 'Jr.', 'PI_FULL_NAME': 'A. W Castleman', 'EmailAddress': 'awc@psu.edu', 'NSF_ID': '000162876', 'StartDate': '10/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Pennsylvania State Univ University Park', 'CityName': 'UNIVERSITY PARK', 'ZipCode': '168021503', 'PhoneNumber': '8148651372', 'StreetAddress': '201 OLD MAIN', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Pennsylvania', 'StateCode': 'PA', 'CONGRESSDISTRICT': '15', 'CONGRESS_DISTRICT_ORG': 'PA15', 'ORG_UEI_NUM': 'NPM2J7MSCF61', 'ORG_LGL_BUS_NAME': 'THE PENNSYLVANIA STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1524', 'Text': 'Atmospheric Chemistry'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8714095.xml'}