Perspectives in ~1H,~(14)N and ~(81)Br solid-state NMR studies of interfaces in materials textured by self-assembled amphiphiles Perspectives in ~1H,~(14)N and ~(81)Br solid-state NMR studies of interfaces in materials textured by self-assembled amphiphiles... MP Innocenzi - 《Comptes ...
Provied information about Dembrexine(Molecular Formula: C13H17Br2NO2, CAS Registry Number:83200-09-3 ) ,Boiling Point,Melting Point,Flash Point,Density, NMR Molecular Structure,Risk Codes,Synthesis Route at guidechem
Different contact times were used in cross-polarization magic angle spinning (CPMAS) NMR, CP rotational-echo double resonance (CP-REDOR) NMR, and heteronuclear correlation (HETCOR) NMR spectroscopy to distinguish between Brnsted acid sites with different O-H distances. The accessibility of the ...
A Searchable Data Bank of NMR Spectra 核磁共振波谱查询数据库 XIE Di-lin,CHEN Zhong,DENG Si-shan, 谢狄霖,陈忠,邓思珊 Keywords:nuclear magnetic resonance,spectrum,database,search engine 核磁共振,波谱,数据库,查询 Full-TextCite this paperAdd to My Lib ...
1-Bromoanthracene (CAS 7397-92-4, C14H9Br), is a yellow solid, widely used in organic synthesis, with a strong odor, playing a crucial role as a building block in the synthesis of various organic compounds. 1-Bromoanthracene is commonly used in the preparation of dyes, pharmaceuticals, ...
已知某化合物的分子式为C8H9Br,NMR谱如图所示。其中峰面积之比为5:1:3(从低场到高场的顺序),试推测该化合物的构造式。并指出各组峰的归属。(双峰,3H)(多重峰,5H)(四重峰,1H)76543210PPM图 C8H9Br的NMR谱 相关知识点: 试题来源: 解析 解:从积分曲线的高度推出化学位移从高到低三组峰所对应的质子...
13C NMR study of commensurate antiferromagnetism in (TMTTF)2Brdoi:10.1103/PhysRevB.88.125121Quasi-one-dimensional organic conductors (TMTCF)2X have various electric and magnetic properties. Although theoretical and experimental studies have suggested that (TMTTF)2Br has the properties of commensurate ...
为:CH 3 CH 2 CBr 2 CH 2 CH 3 δ 0.9 (双重峰,6H)相应于结构(CH 3 ) 2 CH—,δ 1.5 (多重峰,1H)相应于三级碳上的质子,δ 1.85 (四重峰,2H)相应结构是CH 3 CH 2 —,δ 5.3 (三重峰,1H)是靠后的区域,它必须是—CHBr 2 ,所以符合上述情况的结构为:(CH 3 ) 2 CHCH 2 CHBr 2...
Syntheses, solution and solid state ^3^1P(^1H) NMR studies, of the first symmetrically-bridging -perpendicular phosphaalkyne dirhodium(I) complexes [Rh~2X~2(-dppm)~2(-RCP)] (R = ^tBu, Ad; X = Cl or Br) Syntheses, solution and solid state 13P{1H} NMR studies, of the first symme...
积累随笔 | NMR需要用液氮,液氦近红外区(0.76~1.5μm)、中红外区(1.5~6μm)和远红外区(6~40μm)。近紫外区(0.39~0.3μm)、远紫外(0.3~0.2μm)XRD:链接可以测什么?1.大晶体可以测样品内原子的结构。2.小晶体可以确定样品的组成,结晶度和相纯度。为什么是X-ray?X-ray波长和原子间距相仿,衍射效果好XRD...