Chemistry of Bulky Alkoxide/Siloxide Complexes:             Homogeneous Metal Oxides
{'Code': '03090005', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'CHE', 'LongName': 'Division Of Chemistry'}}
{'SignBlockName': 'John Gilje', 'PO_EMAI': None, 'PO_PHON': None}
The focus of the proposed research is the synthesis and                         chemical reactions of metal compounds in which the metal is                     attached to several bulky groups which by steric crowding                       prevent the metal from making bonds to as many other atoms as                   it would if it could. The metal atoms in these so-called                        coordinatively unsaturated species are electron deficient,                      which causes them to manifest reactivities which are comparable                 to metal oxides. These compounds have been found to be capable                  of activating carbon monoxide and atmospheric oxygen, and their                 reactions are potentially of great importance in the synthesis                  of organic compounds and in providing a clearer understanding                   of heterogenous catalysis by metal oxides.                                                                                                                      A primary objective of the project is to elucidate the                          mechanisms of activation of small molecules by Zr and Ta                        complexes of tri-tertiary-butylmethoxide (tritox) and                           tri-tertiary-butylsiloxide (silox) ligands. Kinetic isotope                     effects and radical probes will be used to substantiate that                    the activation of dioxygen by a bis-tritoxZr complex is radical                 based. The cleavage of CO by tris(tritox)Ta will be studied as                  a model of the dissociative adsorption of CO, the initial step                  in Fischer-Tropsch synthesis. The details of the metal-hydride                  assisted cleavage of CO by dihydridobis(silox)Ta will be                        investigated as a unique example of a single sequence which                     involves a homogeneous Fischer-Tropsch reaction, CO reduction,                  deoxygenation and C-C bond formation.
{'FirstName': 'Peter', 'LastName': 'Wolczanski', 'PI_MID_INIT': 'T', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Peter T Wolczanski', 'EmailAddress': 'ptw2@cornell.edu', 'NSF_ID': '000156849', 'StartDate': '11/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Cornell University', 'CityName': 'ITHACA', 'ZipCode': '148502820', 'PhoneNumber': '6072555014', 'StreetAddress': '341 PINE TREE RD', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'New York', 'StateCode': 'NY', 'CONGRESSDISTRICT': '19', 'CONGRESS_DISTRICT_ORG': 'NY19', 'ORG_UEI_NUM': 'G56PUALJ3KT5', 'ORG_LGL_BUS_NAME': 'CORNELL UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1966', 'Text': 'SYNTHETIC INORGANIC'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8714146.xml'}