Journal of The Chemical Society A: Inorganic, Physical, Theoretical最新文献_第3页

Crystal structure of arsenic trichloride–trimethylamine, AsCl3,NMe3 三氯化砷三甲胺、AsCl3、NMe3的晶体结构

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710000836

M. Webster, S. Keats

引用次数: 7

Crystal and molecular structure of NN′-ethylenebis(salicylideneiminato)-ethylcobalt(III) NN′-乙烯双(水杨基氨基)-乙基钴(III)的晶体结构和分子结构

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710002720

M. Calligaris, D. Minichelli, G. Nardin, L. Randaccio

{"title":"Crystal and molecular structure of NN′-ethylenebis(salicylideneiminato)-ethylcobalt(III)","authors":"M. Calligaris, D. Minichelli, G. Nardin, L. Randaccio","doi":"10.1039/J19710002720","DOIUrl":"https://doi.org/10.1039/J19710002720","url":null,"abstract":"The crystal and molecular structure of NN′-ethylenebis(salicylideneiminato)ethylcobalt(III), [EtCo(salen)], has been determined from three-dimensional X-ray data by the heavy-atom method. The crystals are monoclinic with a= 13·97, b= 7·39, c= 18·96 A, β= 127·2°, Z= 4, space group P21/c. Anisotropic least-squares refinement gave R 0·085 for 1762 independent reflexions. The crystals are built up by centrosymmetric dimeric units, dimerisation being achieved through the co-ordination of the cobalt atoms by an oxygen atom of the other [EtCo(salen)] unit (Co–O 2·342 ± 0·003 A).The co-ordination polyhedron of the cobalt atoms is represented by a distorted octahedron. The axial positions are occupied by an oxygen atom of the other Co(salen) unit and by the σ-bonded ethyl group (Co–C 1·990 ± 0·007 A); the four equatorial positions are occupied by the quadridentate salen ligand with Co–O 1·901 ± 0·005 and 1·935 ± 0·004 A and Co–N 1·886 and 1·880 ± 0·006 A. Some properties of salen-type ligands and the trans-influence in the octahedral cobalt complexes are discussed.","PeriodicalId":17321,"journal":{"name":"Journal of The Chemical Society A: Inorganic, Physical, Theoretical","volume":"118 1","pages":"2720-2724"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85608564","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}

引用次数: 10

Reactions between the gallium ‘dihalides’ and ethanol 二卤化镓和乙醇之间的反应

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710002315

J. Oliver, I. J. Worrall

引用次数: 2

The standard potentials of silver–silver halide electrodes and ion solvation in dimethyl sulphoxide–water mixtures at 25 °C 银-卤化银电极的标准电位和离子溶剂化在二甲基亚砜-水混合物中的25°C

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710002932

K. H. Khoo

引用次数: 10

Thermal diffusion in the n-heptane–benzene system at 25°C 25℃下正庚烷-苯体系的热扩散

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710000307

J. Demichowicz-Pigoniowa, M. Mitchell, H. Tyrrell

引用次数: 15

A new polynuclear oxocarbonyl containing six osmium atoms 含有六个锇原子的一种新的多核氧羰基

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710002038

C. W. Bradford, R. Nyholm

引用次数: 4

Growth of crystals from the gas phase. Part II. Diffusional limitations and interfacial stability in crystal growth by dissociative sublimation, with an inert third gas present 气相晶体的生长。第二部分。存在惰性第三气体的解离升华晶体生长中的扩散限制和界面稳定性

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710000001

M. M. Faktor, R. Heckingbottom, I. Garrett

引用次数: 14

The reactions of ethylene and acetylene at the surface of solutions of barium in liquid sodium 乙炔和乙炔在钠溶液中钡表面的反应

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710001708

C. C. Addison, M. Hobdell, R. J. Pulham

引用次数: 0

The preparation and characterization of the µ-amido-µ-oxalato-bis[tetra-amminecobalt(III)] complex, and the kinetics of reduction with Cr2+ and V2+ µ-氨基-µ-草草酸-双[四氨基钴(III)]配合物的制备、表征及Cr2+和V2+还原动力学

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710003651

K. L. Scott, Mark M. Green, A. Sykes

{"title":"The preparation and characterization of the µ-amido-µ-oxalato-bis[tetra-amminecobalt(III)] complex, and the kinetics of reduction with Cr2+ and V2+","authors":"K. L. Scott, Mark M. Green, A. Sykes","doi":"10.1039/J19710003651","DOIUrl":"https://doi.org/10.1039/J19710003651","url":null,"abstract":"The chloride salt of the protonated form of the µ-amido-µ-oxalato-bis[tetra-amminecobalt(III)] complex, has been prepared and characterized. The perchlorate salt has also been prepared and it would appear that the oxalate [graphic omitted] bridge is only 50% protonated in this solid. From spectrophotometric measurements on the complex in acidic solutions at 15–45°, µ= 2·0M(LiClO4), values of the protonation constant K= 18 ± 2 l mol–1 have been determined. Reduction with chromium(II), 2Cr2++(CoIII)2→ 2Co2++(CrIII)2, proceeds in two stages, each involving attack of the chromium(II) and reduction of cobalt(III). Both protonated (ka) and unprotonated (kb) forms participate in the first stage of the reaction (k1), and the rate law (Cr2+ in large excess) is as in (i) [graphic omitted]. At 25° and µ= 2·0M(LiClO4), ka= 1·45 ± 0·07 l mol–1 s–1, and kb= 35·2 ± 0·4 l mol–1 s–1. The second stage of the reduction is independent of [H+] as in (ii) [graphic omitted] and k2= 1·88 ± 0·05 l mol–1 s–1 at 25°. Information regarding the spectrum of the intermediate and final product has been obtained. The reduction with V2+ also proceeds in two stages, the first of which is directly measurable. The rate law observed is of the same form as (i), and again both the protonated (kc) and unprotonated (kd) forms are reactive. At 25° and µ= 2·0M(LiClO4), kc= 3·51 ± 0·04 l mol–1 s–1 and kd= 22·7 ± 0·4 l mol–1 s–1. Activation parameters have been obtained for ka, kb, k2, kc, and kd.","PeriodicalId":17321,"journal":{"name":"Journal of The Chemical Society A: Inorganic, Physical, Theoretical","volume":"8 1","pages":"3651-3659"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85696437","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}

引用次数: 1

Studies on Grignard reagents. Part III. Proton resonance spectra of alkyl and aryl Grignard reagents 格氏试剂的研究。第三部分。烷基和芳基格氏试剂的质子共振谱

Journal of The Chemical Society A: Inorganic, Physical, Theoretical Pub Date : 1971-01-01 DOI: 10.1039/J19710000184

D. F. Evans, G. Fazakerley

引用次数: 14