File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Synthesis, characterization, and acidity of ruthenium dihydrogen complexes with 1,4,7-triazacyclononane, 1,4,7-trimethyl-1,4,7-triazacyclononane, and hydrotris (pyrazolyl)borato ligands

TitleSynthesis, characterization, and acidity of ruthenium dihydrogen complexes with 1,4,7-triazacyclononane, 1,4,7-trimethyl-1,4,7-triazacyclononane, and hydrotris (pyrazolyl)borato ligands
Authors
Issue Date1998
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallics
Citation
Organometallics, 1998, v. 17 n. 10, p. 2052-2059 How to Cite?
AbstractProtonation of [ RCnRuH(L)(L′)] + ( RCn = 1,4,7-triazacyclononane and 1,4,7-trimethyl-1,4,7-triazacyclononane; L,L′ = (PPh 3) 2, dppe, and CO,PPh 3) produced the corresponding dicationic dihydrogen complexes [ RCnRu(H 2)(L)(L′)] 2+. Protonation of TpRuH(dppe) (Tp = hydrotris-(pyrazolyl)borato) yielded the new monocationic dihydrogen complex [TpRu(H 2)(dppe)] +. The acidity of the dihydrogen complexes [ RCnRu(H 2)(L)(L′)] 2+ and monocationic dihydrogen complexes [TpRu(H 2)(L)(L′)] + (L,L′ = dppe, (PPh 3) 2, CH 3CN,PPh 3, and CO,PPh 3) has been studied. It was found that the dicationic complexes are more acidic than their monocationic Tp and Cp counterparts. [ MeCnRu(H 2)(CO)(PPh 3)] 2+ was found to be more acidic than [ HCnRu(H 2)(CO)(PPh 3)] 2+, probably due to the stronger H-H interaction in the latter complex. It is also noted that triazacyclononane and hydrotris(pyrazolyl)borato dihydrogen complexes with pseudo aqueous pK a values well above that of H 3O + can be deprotonated by H 2O to form the corresponding monohydride complexes in organic/aqueous mixed solvents. It is believed that deprotonation of the dihydrogen ligands in these complexes is assisted by strong solvation of H + by H 2O.
Persistent Identifierhttp://hdl.handle.net/10722/68987
ISSN
2015 Impact Factor: 4.186
2015 SCImago Journal Rankings: 2.043
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, SMen_HK
dc.contributor.authorFang, YQen_HK
dc.contributor.authorLau, CPen_HK
dc.contributor.authorWong, WTen_HK
dc.contributor.authorJia, Gen_HK
dc.date.accessioned2010-09-06T06:09:31Z-
dc.date.available2010-09-06T06:09:31Z-
dc.date.issued1998en_HK
dc.identifier.citationOrganometallics, 1998, v. 17 n. 10, p. 2052-2059en_HK
dc.identifier.issn0276-7333en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68987-
dc.description.abstractProtonation of [ RCnRuH(L)(L′)] + ( RCn = 1,4,7-triazacyclononane and 1,4,7-trimethyl-1,4,7-triazacyclononane; L,L′ = (PPh 3) 2, dppe, and CO,PPh 3) produced the corresponding dicationic dihydrogen complexes [ RCnRu(H 2)(L)(L′)] 2+. Protonation of TpRuH(dppe) (Tp = hydrotris-(pyrazolyl)borato) yielded the new monocationic dihydrogen complex [TpRu(H 2)(dppe)] +. The acidity of the dihydrogen complexes [ RCnRu(H 2)(L)(L′)] 2+ and monocationic dihydrogen complexes [TpRu(H 2)(L)(L′)] + (L,L′ = dppe, (PPh 3) 2, CH 3CN,PPh 3, and CO,PPh 3) has been studied. It was found that the dicationic complexes are more acidic than their monocationic Tp and Cp counterparts. [ MeCnRu(H 2)(CO)(PPh 3)] 2+ was found to be more acidic than [ HCnRu(H 2)(CO)(PPh 3)] 2+, probably due to the stronger H-H interaction in the latter complex. It is also noted that triazacyclononane and hydrotris(pyrazolyl)borato dihydrogen complexes with pseudo aqueous pK a values well above that of H 3O + can be deprotonated by H 2O to form the corresponding monohydride complexes in organic/aqueous mixed solvents. It is believed that deprotonation of the dihydrogen ligands in these complexes is assisted by strong solvation of H + by H 2O.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallicsen_HK
dc.relation.ispartofOrganometallicsen_HK
dc.titleSynthesis, characterization, and acidity of ruthenium dihydrogen complexes with 1,4,7-triazacyclononane, 1,4,7-trimethyl-1,4,7-triazacyclononane, and hydrotris (pyrazolyl)borato ligandsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0276-7333&volume=17&spage=2052&epage=2059&date=1998&atitle=Synthesis,characterization,+and+acidity+of+ruthenium+dihydrogen+complexes+with+1,4,7-triazacyclononane,+1,4,7-trimethyl-1,4,7-triazacyclononane,+and+hydrotris(pyrazolyl)borato+ligandsen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/om9710374-
dc.identifier.scopuseid_2-s2.0-0000884479en_HK
dc.identifier.hkuros32599en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000884479&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume17en_HK
dc.identifier.issue10en_HK
dc.identifier.spage2052en_HK
dc.identifier.epage2059en_HK
dc.identifier.isiWOS:000073789900025-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridNg, SM=37004088600en_HK
dc.identifier.scopusauthoridFang, YQ=55469325100en_HK
dc.identifier.scopusauthoridLau, CP=7401968356en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK
dc.identifier.scopusauthoridJia, G=7103360705en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats