{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/50544"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/50544","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Dinitrogen and organometallic chemistry of trimethylsilyl-substituted triamidoamine complexes of molybdenum","abstract":"{ [N 3N]Mo-N=N} 2Mg(THF)2, isolated from the reduction of [N3N]MoCl by magnesium powder under dinitrogen, serves as an entry into the dinitrogen chemistry of molybdenum complexes containing the TMS-TREN ligand. ... Five coordinate tungsten oxo alkylidene complexes of the general type (ArO)2W(O)(CHtBu)(PR 3 ) (Ar = 2,6-Ph2C6H3 ) are synthesized by reaction of Ta(CHtBu)(PR 3)2X3 (X = Cl, Br) with W(O)(OtBu) 4. 1H NMR spectroscopy reveals that only the syn rotamer is present in solution and PPh2Me is labile on the NMR time scale.","abstract_html":"{ [N 3N]Mo-N=N} 2Mg(THF)2, isolated from the reduction of [N3N]MoCl by magnesium powder under dinitrogen, serves as an entry into the dinitrogen chemistry of molybdenum complexes containing the TMS-TREN ligand. ... Five coordinate tungsten oxo alkylidene complexes of the general type (ArO)2W(O)(CHtBu)(PR 3 ) (Ar = 2,6-Ph2C6H3 ) are synthesized by reaction of Ta(CHtBu)(PR 3)2X3 (X = Cl, Br) with W(O)(OtBu) 4. 1H NMR spectroscopy reveals that only the syn rotamer is present in solution and PPh2Me is labile on the NMR time scale.","abstract_has_math":false,"creators":["O'Donoghue, Myra Brigid, 1966-"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Chemistry","school":null,"contributors":[],"advisors":["Richard R. Shrock."],"committee_chairs":[],"committee_members":[],"year":1999,"date_issued":"1999","date_published":"1999","updated_at":"2026-07-22T22:22:27Z","subjects":["Chemistry."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/50544","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Richard R. Shrock."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Department of Chemistry"]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/50544"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1999.","Includes bibliographical references."]},{"key":"dc:description.abstract","label":"Abstract","values":["{ [N 3N]Mo-N=N} 2Mg(THF)2, isolated from the reduction of [N3N]MoCl by magnesium powder under dinitrogen, serves as an entry into the dinitrogen chemistry of molybdenum complexes containing the TMS-TREN ligand. ... Five coordinate tungsten oxo alkylidene complexes of the general type (ArO)2W(O)(CHtBu)(PR 3 ) (Ar = 2,6-Ph2C6H3 ) are synthesized by reaction of Ta(CHtBu)(PR 3)2X3 (X = Cl, Br) with W(O)(OtBu) 4. 1H NMR spectroscopy reveals that only the syn rotamer is present in solution and PPh2Me is labile on the NMR time scale."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Ph.D."]},{"key":"dc:title","label":"Title","values":["Dinitrogen and organometallic chemistry of trimethylsilyl-substituted triamidoamine complexes of molybdenum"]}]}],"canonical_facts":{"dc:contributor.advisor":["Richard R. Shrock."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Chemistry"],"dc:contributor.other":["Massachusetts Institute of Technology. Dept. of Chemistry."],"dc:creator":["O'Donoghue, Myra Brigid, 1966-"],"dc:date.accessioned":["2010-01-07T20:51:16Z"],"dc:date.available":["2010-01-07T20:51:16Z"],"dc:date.issued":["1999"],"dc:description":["Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1999.","Includes bibliographical references."],"dc:description.abstract":["{ [N 3N]Mo-N=N} 2Mg(THF)2, isolated from the reduction of [N3N]MoCl by magnesium powder under dinitrogen, serves as an entry into the dinitrogen chemistry of molybdenum complexes containing the TMS-TREN ligand. ... Five coordinate tungsten oxo alkylidene complexes of the general type (ArO)2W(O)(CHtBu)(PR 3 ) (Ar = 2,6-Ph2C6H3 ) are synthesized by reaction of Ta(CHtBu)(PR 3)2X3 (X = Cl, Br) with W(O)(OtBu) 4. 1H NMR spectroscopy reveals that only the syn rotamer is present in solution and PPh2Me is labile on the NMR time scale."],"dc:description.degree":["Ph.D."],"dc:identifier.uri":["http://hdl.handle.net/1721.1/50544"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Chemistry."],"dc:title":["Dinitrogen and organometallic chemistry of trimethylsilyl-substituted triamidoamine complexes of molybdenum"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:22:27Z"}