Reaction of GaMe3 with H2NCH2CH2NMe2: Synthesis and characterization of adducts and imidogallane

Cited 3 time in webofscience Cited 0 time in scopus
  • Hit : 394
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorPark, JEko
dc.contributor.authorBae, BJko
dc.contributor.authorLee, Kko
dc.contributor.authorPark, Joon Taikko
dc.contributor.authorChang, HYko
dc.contributor.authorChoi, MGko
dc.date.accessioned2013-03-02T20:01:15Z-
dc.date.available2013-03-02T20:01:15Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2000-11-
dc.identifier.citationORGANOMETALLICS, v.19, no.24, pp.5107 - 5112-
dc.identifier.issn0276-7333-
dc.identifier.urihttp://hdl.handle.net/10203/75271-
dc.description.abstractReaction of GaMe3 with N,N-dimethylethylenediamine (DMEDA) produces adducts, Me3Ga:NH2C2H4NMe2 (1:1, 1) and Me3Ga:NH2C2H4NMe2:GaMe3 (2:1, 2). A fast concerted intermolecular: exchange of the two inequivalent GaMe3 moieties occurs in 2 at room temperature. Thermolysis of 2 at 210 degreesC in a sealed ampule produces a mixture of cis and trans isomers of tetrametallic imidogallane, [Me2Ga(mu -NC2H4NMe2GaMe2)](2) (3). Slow recrystallization of 3 affords only the cis isomer as colorless crystals, but in solution the cis isomer equilibrates with the trans isomer. The cis --> trans isomerization of 3 has been studied by H-1 NMR spectroscopy. The equilibrium has been observed to follow reversible first-order kinetics with DeltaH degrees = - 3.35 +/- 1.70 kJ mol(-1) and DeltaS degrees = - 10.4 +/- 1.7 J mol(-1) K-1. The activation parameters for the cis --> trans conversion are DeltaH(1)double dagger = 144.6 +/- 6.2 kJ mol(-1) and Delta S(1)double dagger = 105.6 +/- 1.5 J mol(-1) K-1, and those for the reverse process are DeltaH(-1)double dagger = 147.6 +/- 6.4 kJ mol(-1) and DeltaS(-1)double dagger = 115.4 +/- 1.5 J mol(-1) K-1. The isomerization process has been proposed to be assisted by the NMe2 end of DMEDA as an internal Lewis base. The molecular structures of 2 and cis-3 have been determined by single-crystal X-ray diffraction studies. The geometry about the gallium atom of 2 is distorted tetrahedral with a Ga-C (av) distance of 1.98(1) Angstrom and a Ga-N distance of 2.16(1) Angstrom. The molecular geometry of cis-3 involves one four-membered Ga2N2 ring and two five-membered GaN2C2 rings of cis conformation, and it has approximate C-2 symmetry with the C-2 axis going through the center of the Ga2N2 ring.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectSINGLE-SOURCE PRECURSORS-
dc.subjectR = ME-
dc.subjectSTRUCTURAL CHARACTERIZATION-
dc.subjectMOLECULAR-STRUCTURES-
dc.subjectNITRIDE FILMS-
dc.subjectGALLIUM-
dc.subjectCRYSTAL-
dc.subjectGROWTH-
dc.subjectTRIMETHYLGALLIUM-
dc.subjectISOMERIZATION-
dc.titleReaction of GaMe3 with H2NCH2CH2NMe2: Synthesis and characterization of adducts and imidogallane-
dc.typeArticle-
dc.identifier.wosid000165617100025-
dc.identifier.scopusid2-s2.0-0034311998-
dc.type.rimsART-
dc.citation.volume19-
dc.citation.issue24-
dc.citation.beginningpage5107-
dc.citation.endingpage5112-
dc.citation.publicationnameORGANOMETALLICS-
dc.contributor.localauthorPark, Joon Taik-
dc.contributor.nonIdAuthorPark, JE-
dc.contributor.nonIdAuthorBae, BJ-
dc.contributor.nonIdAuthorLee, K-
dc.contributor.nonIdAuthorChang, HY-
dc.contributor.nonIdAuthorChoi, MG-
dc.type.journalArticleArticle-
dc.subject.keywordPlusSINGLE-SOURCE PRECURSORS-
dc.subject.keywordPlusR = ME-
dc.subject.keywordPlusSTRUCTURAL CHARACTERIZATION-
dc.subject.keywordPlusMOLECULAR-STRUCTURES-
dc.subject.keywordPlusNITRIDE FILMS-
dc.subject.keywordPlusGALLIUM-
dc.subject.keywordPlusCRYSTAL-
dc.subject.keywordPlusGROWTH-
dc.subject.keywordPlusTRIMETHYLGALLIUM-
dc.subject.keywordPlusISOMERIZATION-
Appears in Collection
CH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0