Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of 5-Amino[6]hexahelicene

van der Meijden Maarten W.; Gelens Edith; Murillo Quiros Natalia; Fuhr Javier D.; Gayone J. Esteban; Ascolani Hugo; Wurst Klaus; Lingenfelder Magali; Kellogg Richard M.

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Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of 5-Amino[6]hexahelicene

机译：5-氨基[6]六螺旋烯的合成，性质及二维吸附特性

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A convergent synthesis of racemic 5-amino[6]hexahelicene is described. Cross-coupling reactions are used to assemble a pentacyclic framework, and a metal-catalyzed ring-closure comprises the final step. The enantiomers were separated by means of chromatography and the absolute configurations were assigned by comparison of the CD spectra with hexahelicene. The t(1/2) value for racemization at 210 degrees C was approximately 1 hour. Scanning tunneling microscopy (STM) measurements were carried out on enantiopure and racemic samples of aminohelicene on Au(111) under ultrahigh vacuum (UHV) conditions.

机译：描述了外消旋5-氨基[6]六螺旋烯的会聚合成。交叉偶联反应用于组装五环骨架，金属催化的闭环反应是最后一步。通过色谱分离对映异构体，并通过将CD光谱与六烯进行比较来确定绝对构型。在210℃消旋的t（1/2）值约为1小时。在超高真空（UHV）条件下，在Au（111）上对氨基of烯的对映纯和外消旋样品进行了扫描隧道显微镜（STM）测量。

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《Chemistry: A European journal》 |2016年第4期|共9页
作者
van der Meijden Maarten W.; Gelens Edith; Murillo Quiros Natalia; Fuhr Javier D.; Gayone J. Esteban; Ascolani Hugo; Wurst Klaus; Lingenfelder Magali; Kellogg Richard M.;
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正文语种 eng
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cross-coupling; helicenes; optical properties; resolution; scanning tunneling microscopy;

机译：交叉耦合;螺旋;光学性质;分辨率;扫描隧道显微镜;

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1. Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of 5-Amino[6]hexahelicene [J] . van der Meijden Maarten W., Gelens Edith, Murillo Quiros Natalia, Chemistry: A European journal . 2016,第4期

机译：5-氨基[6]六螺旋烯的合成，性质及二维吸附特性
2. New Functional Hexahelicenes - Synthesis, Chiroptical Properties, X-ray Crystal Structures, and Comparative Data Bank Analysis of Hexahelicenes [J] . Claudia Wachsmann, Edwin Weber, Matyas Czugler, European journal of organic chemistry . 2003,第15期

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3. Adsorption and corrosion inhibition properties of 5-amino 1,3,4-thiadiazole-2-thiol on the mild steel in hydrochloric acid medium: Thermodynamic, surface and electrochemical studies [J] . Ouici H., Tourabi M., Benali O., Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry . 2017,第期

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4. Adsorption of Phenol from Aqueous Solution by Hydroxyapatite Nanopowders. Part Ⅰ: Synthesis and Factors Affecting the Adsorption Characteristic Studies [C] . Kaili Lin, Jiayong Pan, Yiwei Chen, The 2nd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2008)(第二届生物信息与生物医学工程国际会议）论文集 . 2008

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5. Synthesis, Characterization and Adsorption Properties of CO 2 in Cd, Ni and Zn Nitroprusside and Ca and Mg Hexacyanoferrate(II) [D] . Lugo Alvarado, Frances N. 2015

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7. Conformational studies on hexahelicenes—II: Synthesis and spectral properties of alkyl hexahelicenes [O] . Laarhoven W.H., Veldhuis R.G.M. 1972

机译：六螺旋的构象研究—II：烷基六螺旋的合成与光谱性质

Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of 5-Amino[6]hexahelicene

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