Notable differences between corresponding bond lengths and interbond angles in the complexes blue cis-mer-[MoOCl2(PMe2(Ph)3] and green cis-mer-[MoOCl2(PEt2Ph)3] are caused by ligand repulsions; an explanation of the isomerism of mer-[MoOCl2(PMe2Ph)3] is suggested in terms of the structures of the above complexes.
{"title":"X-Ray determination of molecular structures of molybdenum(IV) oxo-complexes. The possibility of a new type of isomerism","authors":"J. Chatt, L. Manojlović-Muir, K. Muir","doi":"10.1039/C29710000655","DOIUrl":"https://doi.org/10.1039/C29710000655","url":null,"abstract":"Notable differences between corresponding bond lengths and interbond angles in the complexes blue cis-mer-[MoOCl2(PMe2(Ph)3] and green cis-mer-[MoOCl2(PEt2Ph)3] are caused by ligand repulsions; an explanation of the isomerism of mer-[MoOCl2(PMe2Ph)3] is suggested in terms of the structures of the above complexes.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"77 1","pages":"655-656"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75408605","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 two cyclopentadienyls in (C5H5)2Ti(C6H5)2 are π-bonded to titanium with a mean Ti–C distance of 2·31 (5)A and the two phenyls are σ-bonded with Ti–C distance of 2·27 (1)A.
{"title":"Crystal and molecular structure of (C5H5)2Ti(C6H5)2","authors":"V. Kocman, J. Rucklidge, R. O'brien, W. Santo","doi":"10.1039/C2971001340A","DOIUrl":"https://doi.org/10.1039/C2971001340A","url":null,"abstract":"The two cyclopentadienyls in (C5H5)2Ti(C6H5)2 are π-bonded to titanium with a mean Ti–C distance of 2·31 (5)A and the two phenyls are σ-bonded with Ti–C distance of 2·27 (1)A.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75409798","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 crystal structure of cis-4,6-dimethyl-2-oxo-2-triphenylmethyl-1,3,2-dioxaphosphorinan shows the 1,3,2-dioxaphosphorinan ring to be much more distorted than in related structures, and to have the ‘half-chair’ conformation.
{"title":"The crystal structure of cis-4,6-dimethyl-2-oxo-2-triphenylmethyl-1,3,2-dioxaphosphorinan","authors":"M. Drew, J. Rodgers, D. W. White, J. Verkade","doi":"10.1039/C29710000227","DOIUrl":"https://doi.org/10.1039/C29710000227","url":null,"abstract":"The crystal structure of cis-4,6-dimethyl-2-oxo-2-triphenylmethyl-1,3,2-dioxaphosphorinan shows the 1,3,2-dioxaphosphorinan ring to be much more distorted than in related structures, and to have the ‘half-chair’ conformation.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"91 1","pages":"227-227"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75650978","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}
When silica bearing creatain chemisorbed silanes is heated to a high temperatrure in vacuo, the chemisorbed layer is disrupted and the surface of the silica is modified; surface =SiH2 groups are formed and the silica surface becomes unusually reactive.
{"title":"Reactive silica. Pyrolysis of chemisorbed silanes","authors":"M. Low, M. Shimizu, J. Mcmanus","doi":"10.1039/C2971000579B","DOIUrl":"https://doi.org/10.1039/C2971000579B","url":null,"abstract":"When silica bearing creatain chemisorbed silanes is heated to a high temperatrure in vacuo, the chemisorbed layer is disrupted and the surface of the silica is modified; surface =SiH2 groups are formed and the silica surface becomes unusually reactive.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75824459","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}
{"title":"Bismuth(I) in the solid state. The crystal structure of (Bi+)(Bi95+)(HfCl62–)3","authors":"R. Friedman, J. Corbett","doi":"10.1039/C29710000422","DOIUrl":"https://doi.org/10.1039/C29710000422","url":null,"abstract":"","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"38 1","pages":"422-423"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74387896","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}
By photoisomerisation, germacrone (I) was transformed into two photoisomers, cis-1,trans-5-germacrone (II) and cis-1,cis-5-germacrone (III): cis-1,trans-5-germacratriene (VI) was derived from (II).
{"title":"Preparation of some cis-1,trans-5-germacratriene derivatives","authors":"K. Takeda, I. Horibe, H. Minato","doi":"10.1039/C29710000087","DOIUrl":"https://doi.org/10.1039/C29710000087","url":null,"abstract":"By photoisomerisation, germacrone (I) was transformed into two photoisomers, cis-1,trans-5-germacrone (II) and cis-1,cis-5-germacrone (III): cis-1,trans-5-germacratriene (VI) was derived from (II).","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"63 1","pages":"87-88"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74488631","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}
4-Dimethylamino-1-t-butoxycarbonylpyridinium chloride is a stable compound which reacts with amino-acid sodium salts in aqueous solution: at 25 °C the reaction is very fast and BOC = amino-acids (BOC = t-butoxycarbonyl) are isolated in good yields by solvent extraction.
{"title":"A water-soluble agent for the t-butoxycarbonylation of amines","authors":"E. Guibe-jampel, M. Wakselman","doi":"10.1039/C29710000267","DOIUrl":"https://doi.org/10.1039/C29710000267","url":null,"abstract":"4-Dimethylamino-1-t-butoxycarbonylpyridinium chloride is a stable compound which reacts with amino-acid sodium salts in aqueous solution: at 25 °C the reaction is very fast and BOC = amino-acids (BOC = t-butoxycarbonyl) are isolated in good yields by solvent extraction.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"19 1","pages":"267-267"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74633746","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}
Cyclobutenedione has been synthesized by hydrolysis of the photocycloadduct of acetylene and dichlorovinylene carbonate.
以乙炔和碳酸二氯乙烯为原料，由光环加合物水解合成了环丁烯二酮。
{"title":"Synthesis of cyclobutenedione","authors":"J. C. Hinshaw","doi":"10.1039/C29710000630","DOIUrl":"https://doi.org/10.1039/C29710000630","url":null,"abstract":"Cyclobutenedione has been synthesized by hydrolysis of the photocycloadduct of acetylene and dichlorovinylene carbonate.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"40 1","pages":"630-630"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74653443","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 New catalytic synthesis is described, involving carbonylation of allyl halides on tetracarbonylnickel and insertion of an olefinic double bond between the allyl and carbon monoxide groups.
{"title":"A new insertion reaction. Prepartation of but-3-enylsuccinic acid by carbonylation of allyl halides with double bond insertion","authors":"G. Chiusoli, S. Merzoni","doi":"10.1039/C29710000522","DOIUrl":"https://doi.org/10.1039/C29710000522","url":null,"abstract":"A New catalytic synthesis is described, involving carbonylation of allyl halides on tetracarbonylnickel and insertion of an olefinic double bond between the allyl and carbon monoxide groups.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"31 1","pages":"522-523"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73074484","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}
Group VI metal carbene complexes of the type NR4[M(CO)5COR′] can be activated with alkyl-aluminium halides to give catalysts which disproportionate not only non-terminal olefins but also terminal olefins.
{"title":"Carbene complexes of the group VI metals as olefin disproportionation catalysts","authors":"W. Kroll, G. Doyle","doi":"10.1039/C29710000839","DOIUrl":"https://doi.org/10.1039/C29710000839","url":null,"abstract":"Group VI metal carbene complexes of the type NR4[M(CO)5COR′] can be activated with alkyl-aluminium halides to give catalysts which disproportionate not only non-terminal olefins but also terminal olefins.","PeriodicalId":17278,"journal":{"name":"Journal of The Chemical Society D: Chemical Communications","volume":"6 1","pages":"839-839"},"PeriodicalIF":0.0,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73185867","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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