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Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences最新文献

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Stickstoffverbindungen von Elementen der dritten Hauptgruppe mit intra- und intermolekularen Donor-Akzeptor-Bindungen. - V : Spezielle Gallium- und Indium-amide mit Alkoxogruppen 皮下和相互输入接到键中的安宁合成元素具体的高利族和印第安酒精细胞
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1988-01-01 DOI: 10.22028/D291-24008
M. Veith, J. Pöhlmann
{"title":"Stickstoffverbindungen von Elementen der dritten Hauptgruppe mit intra- und intermolekularen Donor-Akzeptor-Bindungen. - V : Spezielle Gallium- und Indium-amide mit Alkoxogruppen","authors":"M. Veith, J. Pöhlmann","doi":"10.22028/D291-24008","DOIUrl":"https://doi.org/10.22028/D291-24008","url":null,"abstract":"The lithium alkoxoamidosilane (Me2Si(OtBu)(NtBu)2 (4) and its trimethyltin derivative Me2Si(OtBu)(NtBu)SnMe3 (7) have been used, to introduce the ligand Me2Si(Otbu)(NtBu) = L into molecular compounds of gallium and indium. The following molecules were synthesized : L-M(Me)Cl (M = Ga(5), In (6)), L-InMe2 (8); L-InX2 (X = Cl (9), Br(10)), L2InX (X = Cl of temperature dependent 1H NmR spectra. the chelating effect is more pronounced in the gallium derivatives than in the indium analogues. Equilibria between L2InX/InX3 and LInx2 have bee observed in diethylether solutions. No metal(I) deribatibes LGa or LIn could be isolated. L2Ga2Cl2 (22), formally containing gallium(II), can be sublimed without decomposition at 110°C in vacuo.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"43 1","pages":"505-512"},"PeriodicalIF":0.8,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67973845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mannich reaction with 5,5-dimethyl-3-phenylamino-2-cyclohexen-1-one 与5,5-二甲基-3-苯基氨基-2-环己烯-1- 1进行曼尼希反应
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1988-01-01 DOI: 10.1515/ZNB-1988-0417
W. Hamama, M. Hammouda, E. Afsah
{"title":"Mannich reaction with 5,5-dimethyl-3-phenylamino-2-cyclohexen-1-one","authors":"W. Hamama, M. Hammouda, E. Afsah","doi":"10.1515/ZNB-1988-0417","DOIUrl":"https://doi.org/10.1515/ZNB-1988-0417","url":null,"abstract":"Reaction de Mannich du compose du titre avec la morpholine, la piperidine ou la piperazine. La reaction avec des amines primaires fournit des quinazolones-5. Preparation d'un derive de la 9H-pyrimido-[5,4-b] azepine","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"386 1","pages":"483-486"},"PeriodicalIF":0.8,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/ZNB-1988-0417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66888946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Synthese achtgliedriger Metallacyclen mit einem M(NSN)2M-Gerüst (M = Zr, Hf) 8个完整的锥形金属合成，带有一根n (NSN)二进制框架(M = Zr, Hf)
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1988-01-01 DOI: 10.1515/znb-1988-1209
H. Pelnio, H. Roesky
{"title":"Synthese achtgliedriger Metallacyclen mit einem M(NSN)2M-Gerüst (M = Zr, Hf)","authors":"H. Pelnio, H. Roesky","doi":"10.1515/znb-1988-1209","DOIUrl":"https://doi.org/10.1515/znb-1988-1209","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"43 1","pages":"1575-1578"},"PeriodicalIF":0.8,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1988-1209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66888480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vibronische Kopplung und dynamisch verzerrte Strukturen in Hexahalogenotelluraten(IV): Ergebnisse aus Tieftemperatur-Röntgenbeugungsuntersuchungen (300—160 K) und aus FTIR-spektroskopischen Experimenten (300—5 K) [1] 植物基因组序列(IV):低温实验室x光模拟测试和空气化学实验结果(30,160 K) [30,5 K]
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1987-01-01 DOI: 10.15488/2508
W. Abriel, E. Zehnder
{"title":"Vibronische Kopplung und dynamisch verzerrte Strukturen in Hexahalogenotelluraten(IV): Ergebnisse aus Tieftemperatur-Röntgenbeugungsuntersuchungen (300—160 K) und aus FTIR-spektroskopischen Experimenten (300—5 K) [1]","authors":"W. Abriel, E. Zehnder","doi":"10.15488/2508","DOIUrl":"https://doi.org/10.15488/2508","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"42 1","pages":"1273-1281"},"PeriodicalIF":0.8,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67149661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Stickstoffverbindungen von Elementen der dritten Hauptgruppe mit intra- und intermolekularen Donor-Akzeptor-Bindungen. - III : Dynamische Phänomene und Lewis-Säure-Stärke 皮下和相互输入接到键中的安宁合成元素三:酸性液体及其浓酸
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1987-01-01 DOI: 10.22028/D291-22556
M. Veith, A. Belo
{"title":"Stickstoffverbindungen von Elementen der dritten Hauptgruppe mit intra- und intermolekularen Donor-Akzeptor-Bindungen. - III : Dynamische Phänomene und Lewis-Säure-Stärke","authors":"M. Veith, A. Belo","doi":"10.22028/D291-22556","DOIUrl":"https://doi.org/10.22028/D291-22556","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"42 1","pages":"525-535"},"PeriodicalIF":0.8,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67971140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ein Derivat des 1λ5, 3λ5, 5λ3-Triphosphabenzols 1λ 5,3 λ 5,5 λ3-三磷酸enzols的衍生物
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1987-01-01 DOI: 10.18419/OPUS-1293
E. Fluck, G. Becker, B. Neumüller, R. Knebl, G. Heckmann, H. Riffel
{"title":"Ein Derivat des 1λ5, 3λ5, 5λ3-Triphosphabenzols","authors":"E. Fluck, G. Becker, B. Neumüller, R. Knebl, G. Heckmann, H. Riffel","doi":"10.18419/OPUS-1293","DOIUrl":"https://doi.org/10.18419/OPUS-1293","url":null,"abstract":"The title compound was prepared by reacting 1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete with 2,2-dimethylpropylidynephosphane and characterized by NMR spectra and X-ray structure analysis.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"42 1","pages":"1213-1221"},"PeriodicalIF":0.8,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67640166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modellreaktionen zur Bildung und Öffnung von Furanen nebeneinander unter Verwendung von Diazocarbonyl-Verbindungen 使用狄玉髓合成物进行还原和沉淀反应
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1987-01-01 DOI: 10.15488/2444
W. Rühl, F. Bölsing, E. Hofer
{"title":"Modellreaktionen zur Bildung und Öffnung von Furanen nebeneinander unter Verwendung von Diazocarbonyl-Verbindungen","authors":"W. Rühl, F. Bölsing, E. Hofer","doi":"10.15488/2444","DOIUrl":"https://doi.org/10.15488/2444","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"42 1","pages":"1487-1491"},"PeriodicalIF":0.8,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67149414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alkoxistannate. - II : Tri(tert-Butoxi)alkalistannate(II) : Darstellung und Strukturen Alkoxistannate .i:巢穴和纹路
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1986-01-01 DOI: 10.22028/D291-22558
M. Veith, R. Rösler
{"title":"Alkoxistannate. - II : Tri(tert-Butoxi)alkalistannate(II) : Darstellung und Strukturen","authors":"M. Veith, R. Rösler","doi":"10.22028/D291-22558","DOIUrl":"https://doi.org/10.22028/D291-22558","url":null,"abstract":"Tri(terf-butoxi)alkalistannates (M (O rBu)3 Sn, M = Li, Na, K, Rb, Cs) are obtained by reaction of alkali-fert-butanolates with tindi-terf-butoxide. If M equals Li or Na (1, 2) molecular com ­ pounds are formed, which consist of two formula units. 1 crystallizes in a monoclinic cell (space group P2[/c; a = 966.5(3), b = 1819(1), c = 1014(1) pm./3 = 107.1(1)°, Z = 4); 2 is triclinic (space group PI; a = 1041(1), b = 2046(1), c = 1033(1) pm. a = 92.3(2), ß = 118.6(1), y = 108.3(3)° and Z = 4). The m olecules 1 and 2 are closely related structurally despite their different space groups. The common structural feature is a Sn2 O fiM 2 cage, which is built of two seco-norcubane Sn2 M 2 0 , units, sharing a M 2 0 2 four-membered ring. Characteristic distances are: 1: Sn—O = 209.3, L i-O = 193.0 and 211.6 pm, 2: S n -O = 210.5, N a -O = 227.4 and 240.7 pm. The ter/-butoxistannates of K, Rb and Cs (3, 4, 5) all crystallize in the orthorhombic crystal system, space group P 2 12 ,2 1 (cell constants o f 3: a = 1907(1), b — 1060(1), c — 896(1) pm, Z = 4). Contrary to the lithiumand sodium derivates 3, 4 and 5 have a polymeric structure. The one dimensional polymer consists of distorted trigonal bipyramidal S n 0 3M “cages” (substituted at the oxygen atoms by tertbutyl groups), which align in a way to allow the metal atom to have a five-fold oxygen coordina­ tion. The tin atoms have trigonal pyramidal coordination. While the tin-oxygen bond lengths are essentially invariant (average value 206.7 pm), the potassium-oxygen distances range from 256.4(5) pm to 318.8(6) pm.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"41 1","pages":"1071-1080"},"PeriodicalIF":0.8,"publicationDate":"1986-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67971375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Über die Reaktion von Hydroxylamin mit Acrylsäure 关于氢氧化物和丙烯酸反应的信息
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1985-01-01 DOI: 10.15488/4137
G. Brachtel, M. Jansen
{"title":"Über die Reaktion von Hydroxylamin mit Acrylsäure","authors":"G. Brachtel, M. Jansen","doi":"10.15488/4137","DOIUrl":"https://doi.org/10.15488/4137","url":null,"abstract":"Obtention du (N,N-bis-[carboxy-«2» ethyl] N-hydroxy) ammoniopropionate. Structure cristalline et moleculaire de la betaine","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"40 1","pages":"574-577"},"PeriodicalIF":0.8,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67150141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zur Stereochemie des frein Elektronenpaares in Verbindungen des vierwertigen Tellurs: Verzerrtes TeCl62−-Oktaeder in [H3N(CJ2)3NH3[TeCl6, regulär oktaedrisches Anion in [H3N(CH2)3NH3]SnCl6 联系中以Stereochemie frein Elektronenpaares vierwertigen Tellurs:扭曲的TeCl62−-Oktaeder [H3N CJ2 oktaedrisches 3NH3 [TeCl6开(Anion [H3N 3NH3] SnCl6 (CH2)
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1985-01-01 DOI: 10.15488/4138
W. Abriel, C. Friedrich
{"title":"Zur Stereochemie des frein Elektronenpaares in Verbindungen des vierwertigen Tellurs: Verzerrtes TeCl62−-Oktaeder in [H3N(CJ2)3NH3[TeCl6, regulär oktaedrisches Anion in [H3N(CH2)3NH3]SnCl6","authors":"W. Abriel, C. Friedrich","doi":"10.15488/4138","DOIUrl":"https://doi.org/10.15488/4138","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"40 1","pages":"1691-1697"},"PeriodicalIF":0.8,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67149860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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