2-Diphenylphosphinoyl-N,N-dimethylaniline is oxidized at nitrogen by a dilute solution of H2O2 in the presence of MoO(O2)2·(H2O)x; the resulting phosphorus–nitrogen dioxo-ligand forms a molybdenum oxobisperoxo complex, which is structurally characterized by single crystal X-ray diffraction.
2-二苯基膦酰- n, n -二甲苯胺在MoO(O2)2·(H2O)x的存在下，被H2O2的稀溶液在氮气下氧化;所得的磷氮二氧配体形成钼氧双氧配合物，其结构通过单晶x射线衍射表征。
{"title":"The first chelating phosphorus–nitrogen dioxo ligand: complexation of an MoO(O2)2 fragment","authors":"W. Thiel, Thomas Priermeier, Tassilo Bog","doi":"10.1039/C39950001871","DOIUrl":"https://doi.org/10.1039/C39950001871","url":null,"abstract":"2-Diphenylphosphinoyl-N,N-dimethylaniline is oxidized at nitrogen by a dilute solution of H2O2 in the presence of MoO(O2)2·(H2O)x; the resulting phosphorus–nitrogen dioxo-ligand forms a molybdenum oxobisperoxo complex, which is structurally characterized by single crystal X-ray diffraction.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75155073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
d-Electron stabilisation energies provide a general framework for extending conventional Molecular Mechanics to open-shell complexes; a single set of Force Field parameters successfully models both planar CuN4 and Jahn–Teller distorted, tetragonally elongated CuN6 amine complexes.
{"title":"Molecular modelling for copper(II) centres","authors":"V. Burton, R. Deeth","doi":"10.1039/C39950000573","DOIUrl":"https://doi.org/10.1039/C39950000573","url":null,"abstract":"d-Electron stabilisation energies provide a general framework for extending conventional Molecular Mechanics to open-shell complexes; a single set of Force Field parameters successfully models both planar CuN4 and Jahn–Teller distorted, tetragonally elongated CuN6 amine complexes.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75172284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Molecular mechanics modelling demonstrates the geometric and energetic viabilities of proposed novel nucleotide bases in Hoogsteen interactions confined to natural DNA triplet configuration.
{"title":"Novel nucleotide bases for DNA duplex recognition by triple helix formation","authors":"J. Rothman, W. Richards","doi":"10.1039/C39950001589","DOIUrl":"https://doi.org/10.1039/C39950001589","url":null,"abstract":"Molecular mechanics modelling demonstrates the geometric and energetic viabilities of proposed novel nucleotide bases in Hoogsteen interactions confined to natural DNA triplet configuration.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74625127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The complexes [RuCl2(PPh3)(L)] in which L is a tridentate ligand with P, N and O donor atoms are very efficient catalysts for the transfer hydrogenation of cyclic ketones and acetophenone (turnover ⩽ 118 800 h–1) in basic media; when L is optically active, no significant e.e. is observed.
{"title":"Ruthenium(II) complexes with new tridentate ligands containing P, N, O donor atoms: highly efficient catalysts for transfer hydrogenation of ketones by propan-2-ol","authors":"Hong Yang, M. Alvarez, N. Lugan, R. Mathieu","doi":"10.1039/C39950001721","DOIUrl":"https://doi.org/10.1039/C39950001721","url":null,"abstract":"The complexes [RuCl2(PPh3)(L)] in which L is a tridentate ligand with P, N and O donor atoms are very efficient catalysts for the transfer hydrogenation of cyclic ketones and acetophenone (turnover ⩽ 118 800 h–1) in basic media; when L is optically active, no significant e.e. is observed.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72992579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An unusual trigonal monopyramidal nickel(II) complex of a new tripodal tris-(N-tert-butylcarbamoylmethyl)aminato (3–) ligand is reported; this ligand sterically protects the NiII centre preventing further ligand coordination.
{"title":"SYNTHESIS AND CHARACTERIZATION OF A TRIGONAL MONOPYRAMIDAL NICKEL(II) COMPLEX","authors":"M. Ray, G. Yap, A. Rheingold, A. Borovik","doi":"10.1039/C39950001777","DOIUrl":"https://doi.org/10.1039/C39950001777","url":null,"abstract":"An unusual trigonal monopyramidal nickel(II) complex of a new tripodal tris-(N-tert-butylcarbamoylmethyl)aminato (3–) ligand is reported; this ligand sterically protects the NiII centre preventing further ligand coordination.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73095274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The syntheses and characterization of new hemicarcerands 3 and new complexes of 4 are described; the half-lives and activation energies for incarcerated Me2NCHO and Me2NCOMe escaping from the inner phases of 2 and 4 are compared.
{"title":"Comparisons of activation energies for guest escapes from the inner phases of hemicarcerands with varying numbers of bowl-linking groups","authors":"Timothy A. Bobbins, D. Cram","doi":"10.1039/C39950001515","DOIUrl":"https://doi.org/10.1039/C39950001515","url":null,"abstract":"The syntheses and characterization of new hemicarcerands 3 and new complexes of 4 are described; the half-lives and activation energies for incarcerated Me2NCHO and Me2NCOMe escaping from the inner phases of 2 and 4 are compared.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73100471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The diacetylene Me(CH2)11CC–C(CH2)8CO2H (12,8-DA) can be photopolymerized in aqueous colloidal gold solution owing to attraction between the surface of the Au particles and the 12,8-DA molecules which reduces the distance between adjacent DA molecules.
{"title":"Enhanced photopolymerization of diacetylene in colloidal gold solution","authors":"H. S. Zhou, T. Wada, H. Sasabe","doi":"10.1039/C39950001525","DOIUrl":"https://doi.org/10.1039/C39950001525","url":null,"abstract":"The diacetylene Me(CH2)11CC–C(CH2)8CO2H (12,8-DA) can be photopolymerized in aqueous colloidal gold solution owing to attraction between the surface of the Au particles and the 12,8-DA molecules which reduces the distance between adjacent DA molecules.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73110621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A ‘manganese porphyrin-spermine-oligonucleotide’ molecule, forms a stable triple helix structure (Tm= 42 °C), and cleaves a double-stranded DNA sequence of HIV-1.
{"title":"DNA cleavage by a ‘metalloporphyrin-spermine-oligonucleotide’ molecule","authors":"P. Bigey, G. Pratviel, B. Meunier","doi":"10.1039/C39950000181","DOIUrl":"https://doi.org/10.1039/C39950000181","url":null,"abstract":"A ‘manganese porphyrin-spermine-oligonucleotide’ molecule, forms a stable triple helix structure (Tm= 42 °C), and cleaves a double-stranded DNA sequence of HIV-1.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75346203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An insoluble catalytic assembly consisting of a silicate xerogel covalently modified with phenyl groups and quaternary ammonium–polyoxometalate ion pairs was used to catalyse the oxidation of alkenes with 30% aqueous hydrogen peroxide in the absence of an organic solvent.
{"title":"Alkene oxidation in water using hydrophobic silica particles derivatized with polyoxometalates as catalysts","authors":"R. Neumann, H. Miller","doi":"10.1039/C39950002277","DOIUrl":"https://doi.org/10.1039/C39950002277","url":null,"abstract":"An insoluble catalytic assembly consisting of a silicate xerogel covalently modified with phenyl groups and quaternary ammonium–polyoxometalate ion pairs was used to catalyse the oxidation of alkenes with 30% aqueous hydrogen peroxide in the absence of an organic solvent.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75361299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deoxycholic acid micelles have been used successfully in capillary electrophoresis to estimate the octanol-water partition coefficient (log P) of a number of drugs; the methodology developed is fast and is suitable for the determination of this physico-chemical parameter for neutral, basic and weakly acidic molecules with a variety of structures.
{"title":"Rapid estimation of octanol–water partition coefficients using deoxycholate micelles in capillary electrophoresis","authors":"M. Adlard, G. Okafo, E. Meenan, P. Camilleri","doi":"10.1039/C39950002241","DOIUrl":"https://doi.org/10.1039/C39950002241","url":null,"abstract":"Deoxycholic acid micelles have been used successfully in capillary electrophoresis to estimate the octanol-water partition coefficient (log P) of a number of drugs; the methodology developed is fast and is suitable for the determination of this physico-chemical parameter for neutral, basic and weakly acidic molecules with a variety of structures.","PeriodicalId":17282,"journal":{"name":"Journal of The Chemical Society, Chemical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75500405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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