Pub Date : 2019-01-01DOI: 10.1484/m.as-eb.5.116627
Slavica Ranković
{"title":"Traversing the Space of the Oral-Written Continuum: Medially Connotative Back-Referring Formulae in Landnámabók","authors":"Slavica Ranković","doi":"10.1484/m.as-eb.5.116627","DOIUrl":"https://doi.org/10.1484/m.as-eb.5.116627","url":null,"abstract":"","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72739332","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}
Pub Date : 2019-01-01DOI: 10.1484/m.as-eb.5.116622
Jonas Wellendorf
{"title":"Letters from Kings: Epistolary Communication in the Kings’ Sagas (until c. 1150)","authors":"Jonas Wellendorf","doi":"10.1484/m.as-eb.5.116622","DOIUrl":"https://doi.org/10.1484/m.as-eb.5.116622","url":null,"abstract":"","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82313300","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}
Pub Date : 2019-01-01DOI: 10.1484/m.as-eb.5.116620
Aidan Conti
{"title":"Creating Absence: The Representation of Writing in Early Histories of the North","authors":"Aidan Conti","doi":"10.1484/m.as-eb.5.116620","DOIUrl":"https://doi.org/10.1484/m.as-eb.5.116620","url":null,"abstract":"","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87275476","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}
Pub Date : 2019-01-01DOI: 10.1484/m.as-eb.5.116623
L. Melve
{"title":"Letters, Networks, and Public Opinion in Medieval Norway (1024-1263)","authors":"L. Melve","doi":"10.1484/m.as-eb.5.116623","DOIUrl":"https://doi.org/10.1484/m.as-eb.5.116623","url":null,"abstract":"","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73651544","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}
Pub Date : 2019-01-01DOI: 10.1484/m.as-eb.5.116624
Kristel Zilmer
{"title":"Gyrðir á lykil (Gyrðir owns the key): Materialized Moments of Communication in Runic Items from Medieval Bergen","authors":"Kristel Zilmer","doi":"10.1484/m.as-eb.5.116624","DOIUrl":"https://doi.org/10.1484/m.as-eb.5.116624","url":null,"abstract":"","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78463990","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}
Pub Date : 1999-12-01DOI: 10.3891/ACTA.CHEM.SCAND.53-1069
L. Groendahl, J. Josephsen, Rikke Christina Mattsson Bruun, S. Larsen
Syntheses and characterisation by H-1 NMR and IR of the platinum(II) complexes [PtI2(Ph2C=NH)(2)], [PtCl2(Ph2C=NH)(2)], [PtCl(Ph(Ph-H)C=NH)-(NH2CH2CH2NH2)] and trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] are described. Absorption and emission spectra at room temperature for the latter complex are reported. The crystal structure of trans-(N,N)[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] . 1/2{(CH3)(2)CO} was determined by X-ray diffraction methods. Space group C2/c, a = 14.318(4) Angstrom, b = 22.854(4) Angstrom. c = 15.212(3) Angstrom and beta = 108.42(2)degrees using 10 368 reflections in the refinement of 291 parameters gave R = 0.037 and wR2 = 0.074 (for all data). The ligands surround platinum in a planar configuration with bond lengths of Pt-Cl 2.404(1) Angstrom, Pt-N (monodentate imine ligand) 2.004(3) Angstrom, Pt-N (bidentate imine ligand) 1.979(3) Angstrom and Pt-C 1.988(3) Angstrom. The chemical shifts in the H-1 NMR spectrum of trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] (in CDCl3) display variations with concentration of the complex that indicate dimerisation. The dimerisation constant was determined from the change in chemical shift for the NH proton of the ortho-metalated ligand, K = 1.25(4) M-1 at 300 K. The structure of the dimer in solution is proposed to resemble one of the types of interactions that are encountered between platinum complexes in the solid state.
{"title":"Platinum(II)Benzophenone Imine Complexes and the Crystal Structure of trans-(N,N)-(Benzophenoneimine)chloro-[2-(1-imino-1-phenylmeth yl)phenyliodo]-platinum(II)-Acetone(2/1)","authors":"L. Groendahl, J. Josephsen, Rikke Christina Mattsson Bruun, S. Larsen","doi":"10.3891/ACTA.CHEM.SCAND.53-1069","DOIUrl":"https://doi.org/10.3891/ACTA.CHEM.SCAND.53-1069","url":null,"abstract":"Syntheses and characterisation by H-1 NMR and IR of the platinum(II) complexes [PtI2(Ph2C=NH)(2)], [PtCl2(Ph2C=NH)(2)], [PtCl(Ph(Ph-H)C=NH)-(NH2CH2CH2NH2)] and trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] are described. Absorption and emission spectra at room temperature for the latter complex are reported. The crystal structure of trans-(N,N)[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] . 1/2{(CH3)(2)CO} was determined by X-ray diffraction methods. Space group C2/c, a = 14.318(4) Angstrom, b = 22.854(4) Angstrom. c = 15.212(3) Angstrom and beta = 108.42(2)degrees using 10 368 reflections in the refinement of 291 parameters gave R = 0.037 and wR2 = 0.074 (for all data). The ligands surround platinum in a planar configuration with bond lengths of Pt-Cl 2.404(1) Angstrom, Pt-N (monodentate imine ligand) 2.004(3) Angstrom, Pt-N (bidentate imine ligand) 1.979(3) Angstrom and Pt-C 1.988(3) Angstrom. The chemical shifts in the H-1 NMR spectrum of trans-(N,N)-[PtCl(Ph(Ph-H)C=NH)(Ph2C=NH)] (in CDCl3) display variations with concentration of the complex that indicate dimerisation. The dimerisation constant was determined from the change in chemical shift for the NH proton of the ortho-metalated ligand, K = 1.25(4) M-1 at 300 K. The structure of the dimer in solution is proposed to resemble one of the types of interactions that are encountered between platinum complexes in the solid state.","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"10 1","pages":"1069-1077"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77022677","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}
Pub Date : 1999-11-01DOI: 10.3891/ACTA.CHEM.SCAND.53-1054
T. I. Jansen, I. Trabjerg, S. Rettrup, P. Pagsberg, A. Sillesen
The aminomethyl radical was produced by the reaction F-. + CH3NH2 --> HF + (CH2NH2)-C-., which was initiated by pulse radiolysis of CH3NH2-SF6 mixtures. The ultraviolet absorption spectrum of CH2NH2 was recorded on a timescale of 2 mu s using a gated optical multichannel analyzer. The vibronic structure observed in the range 270-380 nm was analyzed by comparison with the results Of ab initio calculations. Kinetics of the self-reaction 2(.)CH(2)NH(2) --> products was studied by monitoring the transient absorption of (CH2NH2)-C-. at 319.5 nm. A value of k = 8.1 x 10(-11) cm(3) molecule(-1) s(-1) was derived from the observed second-order kinetics combined with an estimated yield of the radical. In the presence of oxygen the decay rate was found to increase in accordance with the reaction (CH2NH2)-C-. + O-2 --> products proceeding with a rate constant of 7.8(8) x 10(-11) cm(3) molecule(-1) s(-1).
氨基甲基自由基由F-反应产生。+ ch3nh2 -> hf + (ch2nh2)- c -。，由脉冲辐射分解CH3NH2-SF6混合物引发。利用门控光多通道分析仪在2 μ s的时间尺度上记录了CH2NH2的紫外吸收光谱。通过与从头计算结果的比较，分析了在270 ~ 380 nm范围内观察到的振动结构。通过监测(CH2NH2)- c -的瞬态吸收，研究了自反应2(.)CH(2)NH(2) ->产物的动力学。在319.5 nm。根据观察到的二级动力学结合自由基的估计产率，得出k = 8.1 x 10(-11) cm(3)分子(-1)s(-1)的值。在有氧存在的情况下，发现衰变速率随着(CH2NH2)- c -的反应而增加。+ O-2 ->产物的反应速率常数为7.8(8)× 10(-11) cm(3)分子(-1)s(-1)。
{"title":"Experimental and theoretical investigation of the UV spectrum and kinetics of the aminomethyl radical, .CH2NH2","authors":"T. I. Jansen, I. Trabjerg, S. Rettrup, P. Pagsberg, A. Sillesen","doi":"10.3891/ACTA.CHEM.SCAND.53-1054","DOIUrl":"https://doi.org/10.3891/ACTA.CHEM.SCAND.53-1054","url":null,"abstract":"The aminomethyl radical was produced by the reaction F-. + CH3NH2 --> HF + (CH2NH2)-C-., which was initiated by pulse radiolysis of CH3NH2-SF6 mixtures. The ultraviolet absorption spectrum of CH2NH2 was recorded on a timescale of 2 mu s using a gated optical multichannel analyzer. The vibronic structure observed in the range 270-380 nm was analyzed by comparison with the results Of ab initio calculations. Kinetics of the self-reaction 2(.)CH(2)NH(2) --> products was studied by monitoring the transient absorption of (CH2NH2)-C-. at 319.5 nm. A value of k = 8.1 x 10(-11) cm(3) molecule(-1) s(-1) was derived from the observed second-order kinetics combined with an estimated yield of the radical. In the presence of oxygen the decay rate was found to increase in accordance with the reaction (CH2NH2)-C-. + O-2 --> products proceeding with a rate constant of 7.8(8) x 10(-11) cm(3) molecule(-1) s(-1).","PeriodicalId":7079,"journal":{"name":"Acta chemica Scandinavica","volume":"50 1","pages":"1054-1058"},"PeriodicalIF":0.0,"publicationDate":"1999-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73547253","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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